Subjects -> COMMUNICATIONS (Total: 518 journals)
    - COMMUNICATIONS (446 journals)
    - DIGITAL AND WIRELESS COMMUNICATION (31 journals)
    - HUMAN COMMUNICATION (19 journals)
    - MEETINGS AND CONGRESSES (7 journals)
    - RADIO, TELEVISION AND CABLE (15 journals)

COMMUNICATIONS (446 journals)                  1 2 3 | Last

Showing 1 - 200 of 480 Journals sorted by number of followers
Evidence Based Library and Information Practice     Open Access   (Followers: 592)
Information Technologies & International Development     Open Access   (Followers: 87)
Information, Communication & Society     Hybrid Journal   (Followers: 79)
Journal of Communication     Hybrid Journal   (Followers: 64)
Convergence The International Journal of Research into New Media Technologies     Hybrid Journal   (Followers: 50)
Augmentative and Alternative Communication     Hybrid Journal   (Followers: 48)
e-learning and education (eleed)     Open Access   (Followers: 40)
Communication Theory     Hybrid Journal   (Followers: 36)
Journal of Computer-Mediated Communication     Open Access   (Followers: 35)
New Media and Mass Communication     Open Access   (Followers: 33)
Communication     Open Access   (Followers: 31)
Journal of the Association for Information Systems     Open Access   (Followers: 31)
Communication, Culture & Critique     Hybrid Journal   (Followers: 30)
Electronic Journal of Knowledge Management     Open Access   (Followers: 30)
Journalism & Mass Communication Quarterly     Hybrid Journal   (Followers: 29)
Health Information Management Journal     Hybrid Journal   (Followers: 29)
Advances in Journalism and Communication     Open Access   (Followers: 29)
Journal of Medical Internet Research     Open Access   (Followers: 28)
Advances in Image and Video Processing     Open Access   (Followers: 28)
New Review of Film and Television Studies     Hybrid Journal   (Followers: 27)
Discourse, Context & Media     Open Access   (Followers: 26)
Proceedings of the American Society for Information Science and Technology     Hybrid Journal   (Followers: 26)
Communication Papers : Media Literacy & Gender Studies     Open Access   (Followers: 25)
Journal of Media and Communication Studies     Open Access   (Followers: 25)
International Journal of Advanced Media and Communication     Hybrid Journal   (Followers: 23)
Journal of Information, Communication and Ethics in Society     Hybrid Journal   (Followers: 23)
Information & Communications Technology Law     Hybrid Journal   (Followers: 22)
Framework : The Journal of Cinema and Media     Full-text available via subscription   (Followers: 22)
Quarterly Review of Film and Video     Hybrid Journal   (Followers: 21)
Journalism & Mass Communication Educator     Hybrid Journal   (Followers: 21)
Screen     Hybrid Journal   (Followers: 20)
Journal of International and Intercultural Communication     Hybrid Journal   (Followers: 20)
Global Media and Communication     Hybrid Journal   (Followers: 19)
Language and Speech     Hybrid Journal   (Followers: 19)
Journal of Media Psychology     Hybrid Journal   (Followers: 19)
Journal of Science Communication     Open Access   (Followers: 19)
Journalism & Communication Monographs     Hybrid Journal   (Followers: 19)
Human Communication Research     Hybrid Journal   (Followers: 18)
IEEE Transactions on Smart Grid     Hybrid Journal   (Followers: 18)
Speech, Language and Hearing     Hybrid Journal   (Followers: 17)
Communication Booknotes Quarterly     Hybrid Journal   (Followers: 16)
Journal of Magnetic Resonance Imaging     Hybrid Journal   (Followers: 16)
International Journal of Information Technology, Communications and Convergence     Hybrid Journal   (Followers: 16)
Journal for the History of Rhetoric     Hybrid Journal   (Followers: 16)
Journal of Media Ethics : Exploring Questions of Media Morality     Hybrid Journal   (Followers: 15)
Public Relations Review     Hybrid Journal   (Followers: 15)
Quarterly Journal of Speech     Hybrid Journal   (Followers: 15)
Communications of the Association for Information Systems     Open Access   (Followers: 15)
International Journal of Computer Science and Telecommunications     Open Access   (Followers: 15)
Media and Communication     Open Access   (Followers: 15)
Journal of Broadcasting & Electronic Media     Hybrid Journal   (Followers: 14)
Journal of the American College of Radiology     Hybrid Journal   (Followers: 14)
Global Media Journal     Open Access   (Followers: 14)
Communications in Mobile Computing     Open Access   (Followers: 14)
Celebrity Studies     Hybrid Journal   (Followers: 14)
International Journal of Information and Communication Technology Education     Full-text available via subscription   (Followers: 13)
Journal of Technical Writing and Communication     Full-text available via subscription   (Followers: 12)
Chinese Journal of Communication     Hybrid Journal   (Followers: 12)
MedieKultur. Journal of media and communication research     Open Access   (Followers: 12)
Pragmatics and Society     Hybrid Journal   (Followers: 12)
Qualitative Studies     Open Access   (Followers: 12)
ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP)     Hybrid Journal   (Followers: 12)
IEICE - Transactions on Fundamentals of Electronics, Communications and Computer Sciences     Full-text available via subscription   (Followers: 11)
IET Communications     Open Access   (Followers: 11)
Qualitative Research Reports in Communication     Hybrid Journal   (Followers: 11)
International Journal of Business Communication     Hybrid Journal   (Followers: 10)
Electronics and Communications in Japan     Hybrid Journal   (Followers: 10)
Informal Logic     Open Access   (Followers: 10)
Communication & Language at Work     Open Access   (Followers: 10)
C&SC - Communication & Social Change     Open Access   (Followers: 10)
Openings : Studies in Book Art     Open Access   (Followers: 10)
Creative Artist : A Journal of Theatre and Media Studies     Open Access   (Followers: 10)
Journal of Radiotherapy in Practice     Hybrid Journal   (Followers: 9)
Magnetic Resonance Imaging     Hybrid Journal   (Followers: 9)
Interaction Studies     Hybrid Journal   (Followers: 9)
Journal of Language and Politics     Hybrid Journal   (Followers: 9)
Fibreculture Journal     Open Access   (Followers: 9)
Journal of Islamic Manuscripts     Hybrid Journal   (Followers: 9)
Comedy Studies     Hybrid Journal   (Followers: 9)
International Journal of Electronics and Telecommunications     Open Access   (Followers: 9)
Communication & Sport     Hybrid Journal   (Followers: 9)
tripleC : Communication, Capitalism & Critique. Open Access Journal for a Global Sustainable Information Society     Open Access   (Followers: 9)
International Journal of Ad Hoc and Ubiquitous Computing     Hybrid Journal   (Followers: 8)
Seminars in Interventional Radiology     Hybrid Journal   (Followers: 8)
Information Design Journal     Hybrid Journal   (Followers: 8)
Myth & Symbol     Hybrid Journal   (Followers: 8)
Black Camera     Full-text available via subscription   (Followers: 8)
Cross-cultural Communication     Open Access   (Followers: 8)
Investigative Radiology     Hybrid Journal   (Followers: 7)
Pediatric Radiology     Hybrid Journal   (Followers: 7)
Technical Communication     Full-text available via subscription   (Followers: 7)
African Journal of Information and Communication     Open Access   (Followers: 7)
Annals of Telecommunications     Hybrid Journal   (Followers: 7)
Intelligent Information Management     Open Access   (Followers: 7)
African Journal of Information Systems     Open Access   (Followers: 7)
China Communications     Full-text available via subscription   (Followers: 7)
Journal of Radio & Audio Media     Hybrid Journal   (Followers: 6)
Sign Language Studies     Full-text available via subscription   (Followers: 6)
Review of Cognitive Linguistics     Hybrid Journal   (Followers: 6)
Foundations and Trends® in Communications and Information Theory     Full-text available via subscription   (Followers: 6)
Journal of Professional Communication     Open Access   (Followers: 6)
Informatics     Open Access   (Followers: 6)
Porn Studies     Hybrid Journal   (Followers: 6)
Journal of Advertising Education     Hybrid Journal   (Followers: 5)
The Communication Review     Hybrid Journal   (Followers: 5)
Journal of Asian Pacific Communication     Hybrid Journal   (Followers: 5)
Journal of Graph Theory     Hybrid Journal   (Followers: 5)
Middle East Journal of Culture and Communication     Hybrid Journal   (Followers: 5)
CIC. Cuadernos de Informacion y Comunicacion     Open Access   (Followers: 5)
Women's Studies in Communication     Hybrid Journal   (Followers: 5)
Global Advances in Business Communication     Open Access   (Followers: 5)
Transactions on Emerging Telecommunications Technologies     Hybrid Journal   (Followers: 4)
Journal of Radiology Nursing     Hybrid Journal   (Followers: 4)
Neuroimaging Clinics of North America     Full-text available via subscription   (Followers: 4)
Telecommunication Systems     Hybrid Journal   (Followers: 4)
Terminology     Hybrid Journal   (Followers: 4)
Tijdschrift voor Communicatiewetenschappen     Full-text available via subscription   (Followers: 4)
Gesture     Hybrid Journal   (Followers: 4)
Communicatio : South African Journal for Communication Theory and Research     Hybrid Journal   (Followers: 4)
Media International Australia     Hybrid Journal   (Followers: 4)
International Review of Pragmatics     Hybrid Journal   (Followers: 4)
International Journal of Cooperative Information Systems     Hybrid Journal   (Followers: 4)
International Journal of Information Communication Technologies and Human Development     Full-text available via subscription   (Followers: 4)
Medical Writing     Hybrid Journal   (Followers: 4)
Journal of Media Innovations     Open Access   (Followers: 4)
Journal of Development and Communication Studies     Open Access   (Followers: 4)
International Journal of Autonomous and Adaptive Communications Systems     Hybrid Journal   (Followers: 3)
Magnetic Resonance Materials in Physics, Biology and Medicine     Hybrid Journal   (Followers: 3)
Solid State Nuclear Magnetic Resonance     Hybrid Journal   (Followers: 3)
Journal of Location Based Services     Hybrid Journal   (Followers: 3)
Etudes de communication     Open Access   (Followers: 3)
Science China Information Sciences     Hybrid Journal   (Followers: 3)
Language, Interaction and Acquisition     Hybrid Journal   (Followers: 3)
Sign Language & Linguistics     Hybrid Journal   (Followers: 3)
Kaleidoscope : A Graduate Journal of Qualitative Communication Research     Open Access   (Followers: 3)
Pacific Asia Journal of the Association for Information Systems     Open Access   (Followers: 3)
Journal of Community Informatics     Open Access   (Followers: 3)
International Journal of Intelligence Science     Open Access   (Followers: 3)
International Journal of Interdisciplinary Telecommunications and Networking     Full-text available via subscription   (Followers: 3)
Journal of International Communication     Hybrid Journal   (Followers: 3)
MediaTropes     Open Access   (Followers: 3)
Nonprofit Communications Report     Hybrid Journal   (Followers: 3)
Journal of Media Literacy Education     Open Access   (Followers: 3)
Seton Hall Journal of Sports and Entertainment Law     Open Access   (Followers: 3)
Social Networking     Open Access   (Followers: 3)
Imaging Decisions MRI     Hybrid Journal   (Followers: 2)
Journal of Cardiovascular Computed Tomography     Hybrid Journal   (Followers: 2)
Language Problems & Language Planning     Hybrid Journal   (Followers: 2)
Research Journal of Information Technology     Open Access   (Followers: 2)
Área Abierta     Open Access   (Followers: 2)
Comunicación y Medios     Open Access   (Followers: 2)
Middle East Media Educator     Open Access   (Followers: 2)
Revue française des sciences de l’information et de la communication     Open Access   (Followers: 2)
Journal of Argumentation in Context     Hybrid Journal   (Followers: 2)
Metaphor and the Social World     Hybrid Journal   (Followers: 2)
Journal of Organizational Knowledge Communication     Open Access   (Followers: 2)
GSTF Journal on Media & Communications     Open Access   (Followers: 2)
Chasqui. Revista Latinoamericana de Comunicación     Open Access   (Followers: 2)
Bioelectromagnetics     Hybrid Journal   (Followers: 1)
Radioelectronics and Communications Systems     Hybrid Journal   (Followers: 1)
McMaster Journal of Communication     Open Access   (Followers: 1)
Palabra Clave     Open Access   (Followers: 1)
International Journal of Knowledge and Systems Science     Full-text available via subscription   (Followers: 1)
Documentación de las Ciencias de la Información     Open Access   (Followers: 1)
International Journal of Trust Management in Computing and Communications     Hybrid Journal   (Followers: 1)
South African Journal of Communication Disorders     Open Access   (Followers: 1)
FLEKS : Scandinavian Journal of Intercultural Theory and Practice     Open Access   (Followers: 1)
Public Journal of Semiotics     Open Access   (Followers: 1)
Journal of Language and Sexuality     Hybrid Journal   (Followers: 1)
Language and Dialogue     Hybrid Journal   (Followers: 1)
Anuario electrónico de estudios en Comunicación Social "Disertaciones"     Open Access   (Followers: 1)
3C TIC     Open Access   (Followers: 1)
Cuadernos.info     Open Access  
Comunicación     Open Access  
De Signos y Sentidos     Open Access  
Distúrbios da Comunicação     Open Access  
Wacana : Jurnal Sosial dan Humaniora     Open Access  
Question     Open Access  
Llengua, societat i comunicació     Open Access  
Informatio. Revista del Instituto de Información de la Facultad de Información y Comunicación     Open Access  
Communiquer : Revue de communication sociale et publique     Open Access  
Cuadernos de H Ideas     Open Access  
Punto Cero     Open Access  
Netcom     Open Access  
Observatorio (OBS*)     Open Access  
Vivat Academia     Open Access  
Commons. Revista de Comunicación y Ciudadanía Digital     Open Access  
Journal of Information and Organizational Sciences     Open Access  
Questions de communication     Open Access  
Quaderni     Open Access  
Communication et organisation     Open Access  
International Journal of Telework and Telecommuting Technologies     Full-text available via subscription  
Virtualidad, Educación y Ciencia     Open Access  
Revista Contracampo     Open Access  
Mediaciones Sociales     Open Access  
Historia y Comunicación Social     Open Access  
Pixel-Bit. Revista de Medios y Educacion     Open Access  
Cuadernos de Informacion     Open Access  
Journal of Modern Periodical Studies     Full-text available via subscription  
Tic & société     Open Access  

        1 2 3 | Last

Similar Journals
Journal Cover
Investigative Radiology
Journal Prestige (SJR): 3.774
Citation Impact (citeScore): 6
Number of Followers: 7  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 0020-9996 - ISSN (Online) 1536-0210
Published by LWW Wolters Kluwer Homepage  [330 journals]
  • Evaluation of the Contrast Enhancement Performance of Gadopiclenol for
           Magnetic Resonance Angiography in Healthy Rabbits and Pigs

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      Authors: Hugon; Gaëlle; Adriaensen, Hans; Wintrebert, Mélody; Arnould, Laurent; Serfaty, Jean-Michel; Robert, Philippe
      Abstract: imageObjectives Unexpected accumulations of gadolinium in various organs were reported after the administration of gadolinium-based contrast agents, making desirable to reduce the dose while maintaining equivalent diagnostic performance. The aim of this study was to evaluate the contrast enhancement performance of high relaxivity gadopiclenol compared with gadoterate meglumine in abdominal contrast-enhanced magnetic resonance angiography (CE-MRA).Materials and Methods In a first study in healthy rabbits, axial 3D gradient echo sequences were applied at 4.7 T to study arterial enhancement as a function of gadopiclenol dose (0.025, 0.05, 0.075, and 0.1 mmol Gd/kg) or gadoterate meglumine at 0.1 mmol Gd/kg (n = 5–6/group). The increase in signal-to-noise ratio (ΔSNR) in the aorta at the first pass was measured and compared. In a second, crossover study in 6 healthy pigs, abdominal CE-MRA sequences were acquired at 3 T with gadopiclenol at 0.05 mmol Gd/kg or gadoterate meglumine at 0.1 mmol Gd/kg at a 1-week interval. Quantitatively on the maximum intensity projection (MIP) images, the mean MIP SNR within the aorta of both groups was compared. Qualitatively, a blinded comparison of the angiograms was performed by an experienced radiologist to determine the preferred contrast agent.Results In the rabbit, ∆SNR is linearly correlated with the gadopiclenol dose (P = 0.0010). Compared with gadoterate meglumine 0.1 mmol Gd/kg, an increase in the ∆SNR is observed after 0.05, 0.075, and 0.1 mmol Gd/kg of gadopiclenol (+63% P = 0.0731, +78% P = 0.0081, and +72% P = 0.0773, respectively), whereas at 0.025 mmol Gd/kg, ∆SNR is in the same range as with gadoterate meglumine 0.1 mmol Gd/kg (+15% P> 0.9999). In pigs, contrast enhancement after gadopiclenol at 0.05 mmol/kg is +22% superior to MIP SNR after gadoterate meglumine at 0.1 mmol Gd/kg (P = 0.3095). Qualitatively, a preference was shown for gadopiclenol images (3/6) over the gadoterate meglumine examinations (1/6), with no preference being shown for the remainder (2/6).Conclusions First-pass CE-MRA is feasible with gadopiclenol at 0.05 mmol Gd/kg with at least the same arterial signal enhancement and image quality as gadoterate meglumine at 0.1 mmol Gd/kg.
      PubDate: Tue, 07 May 2024 00:00:00 GMT-
       
  • Machine Learning–Based Perivascular Space Volumetry in Alzheimer
           Disease

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      Authors: Deike; Katerina; Decker, Andreas; Scheyhing, Paul; Harten, Julia; Zimmermann, Nadine; Paech, Daniel; Peters, Oliver; Freiesleben, Silka D.; Schneider, Luisa-Sophie; Preis, Lukas; Priller, Josef; Spruth, Eike; Altenstein, Slawek; Lohse, Andrea; Fliessbach, Klaus; Kimmich, Okka; Wiltfang, Jens; Bartels, Claudia; Hansen, Niels; Jessen, Frank; Rostamzadeh, Ayda; Düzel, Emrah; Glanz, Wenzel; Incesoy, Enise I.; Butryn, Michaela; Buerger, Katharina; Janowitz, Daniel; Ewers, Michael; Perneczky, Robert; Rauchmann, Boris-Stephan; Teipel, Stefan; Kilimann, Ingo; Goerss, Doreen; Laske, Christoph; Munk, Matthias H.; Spottke, Annika; Roy, Nina; Wagner, Michael; Roeske, Sandra; Heneka, Michael T.; Brosseron, Frederic; Ramirez, Alfredo; Dobisch, Laura; Wolfsgruber, Steffen; Kleineidam, Luca; Yakupov, Renat; Stark, Melina; Schmid, Matthias C.; Berger, Moritz; Hetzer, Stefan; Dechent, Peter; Scheffler, Klaus; Petzold, Gabor C.; Schneider, Anja; Effland, Alexander; Radbruch, Alexander
      Abstract: imageObjectives Impaired perivascular clearance has been suggested as a contributing factor to the pathogenesis of Alzheimer disease (AD). However, it remains unresolved when the anatomy of the perivascular space (PVS) is altered during AD progression. Therefore, this study investigates the association between PVS volume and AD progression in cognitively unimpaired (CU) individuals, both with and without subjective cognitive decline (SCD), and in those clinically diagnosed with mild cognitive impairment (MCI) or mild AD.Materials and Methods A convolutional neural network was trained using manually corrected, filter-based segmentations (n = 1000) to automatically segment the PVS in the centrum semiovale from interpolated, coronal T2-weighted magnetic resonance imaging scans (n = 894). These scans were sourced from the national German Center for Neurodegenerative Diseases Longitudinal Cognitive Impairment and Dementia Study. Convolutional neural network–based segmentations and those performed by a human rater were compared in terms of segmentation volume, identified PVS clusters, as well as Dice score. The comparison revealed good segmentation quality (Pearson correlation coefficient r = 0.70 with P < 0.0001 for PVS volume, detection rate in cluster analysis = 84.3%, and Dice score = 59.0%). Subsequent multivariate linear regression analysis, adjusted for participants' age, was performed to correlate PVS volume with clinical diagnoses, disease progression, cerebrospinal fluid biomarkers, lifestyle factors, and cognitive function. Cognitive function was assessed using the Mini-Mental State Examination, the Comprehensive Neuropsychological Test Battery, and the Cognitive Subscale of the 13-Item Alzheimer’s Disease Assessment Scale.Results Multivariate analysis, adjusted for age, revealed that participants with AD and MCI, but not those with SCD, had significantly higher PVS volumes compared with CU participants without SCD (P = 0.001 for each group). Furthermore, CU participants who developed incident MCI within 4.5 years after the baseline assessment showed significantly higher PVS volumes at baseline compared with those who did not progress to MCI (P = 0.03). Cognitive function was negatively correlated with PVS volume across all participant groups (P ≤ 0.005 for each). No significant correlation was found between PVS volume and any of the following parameters: cerebrospinal fluid biomarkers, sleep quality, body mass index, nicotine consumption, or alcohol abuse.Conclusions The very early changes of PVS volume may suggest that alterations in PVS function are involved in the pathophysiology of AD. Overall, the volumetric assessment of centrum semiovale PVS represents a very early imaging biomarker for AD.
      PubDate: Tue, 23 Apr 2024 00:00:00 GMT-
       
  • Addressing the Contrast Media Recognition Challenge: A Fully Automated
           Machine Learning Approach for Predicting Contrast Phases in CT Imaging

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      Authors: Baldini; Giulia; Hosch, René; Schmidt, Cynthia S.; Borys, Katarzyna; Kroll, Lennard; Koitka, Sven; Haubold, Patrizia; Pelka, Obioma; Nensa, Felix; Haubold, Johannes
      Abstract: imageObjectives Accurately acquiring and assigning different contrast-enhanced phases in computed tomography (CT) is relevant for clinicians and for artificial intelligence orchestration to select the most appropriate series for analysis. However, this information is commonly extracted from the CT metadata, which is often wrong. This study aimed at developing an automatic pipeline for classifying intravenous (IV) contrast phases and additionally for identifying contrast media in the gastrointestinal tract (GIT).Materials and Methods This retrospective study used 1200 CT scans collected at the investigating institution between January 4, 2016 and September 12, 2022, and 240 CT scans from multiple centers from The Cancer Imaging Archive for external validation. The open-source segmentation algorithm TotalSegmentator was used to identify regions of interest (pulmonary artery, aorta, stomach, portal/splenic vein, liver, portal vein/hepatic veins, inferior vena cava, duodenum, small bowel, colon, left/right kidney, urinary bladder), and machine learning classifiers were trained with 5-fold cross-validation to classify IV contrast phases (noncontrast, pulmonary arterial, arterial, venous, and urographic) and GIT contrast enhancement. The performance of the ensembles was evaluated using the receiver operating characteristic area under the curve (AUC) and 95% confidence intervals (CIs).Results For the IV phase classification task, the following AUC scores were obtained for the internal test set: 99.59% [95% CI, 99.58–99.63] for the noncontrast phase, 99.50% [95% CI, 99.49–99.52] for the pulmonary-arterial phase, 99.13% [95% CI, 99.10–99.15] for the arterial phase, 99.8% [95% CI, 99.79–99.81] for the venous phase, and 99.7% [95% CI, 99.68–99.7] for the urographic phase. For the external dataset, a mean AUC of 97.33% [95% CI, 97.27–97.35] and 97.38% [95% CI, 97.34–97.41] was achieved for all contrast phases for the first and second annotators, respectively. Contrast media in the GIT could be identified with an AUC of 99.90% [95% CI, 99.89–99.9] in the internal dataset, whereas in the external dataset, an AUC of 99.73% [95% CI, 99.71–99.73] and 99.31% [95% CI, 99.27–99.33] was achieved with the first and second annotator, respectively.Conclusions The integration of open-source segmentation networks and classifiers effectively classified contrast phases and identified GIT contrast enhancement using anatomical landmarks.
      PubDate: Mon, 04 Mar 2024 00:00:00 GMT-
       
  • Clinical Safety of Gadobutrol: Review of Over 25 Years of Use Exceeding
           100 Million Administrations

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      Authors: Endrikat; Jan; Gutberlet, Matthias; Hoffmann, Karl-Titus; Schöckel, Laura; Bhatti, Aasia; Harz, Cornelia; Barkhausen, Jörg
      Abstract: imageBackground The macrocyclic gadolinium-based contrast agent gadobutrol was introduced to the market in February 1998. Over the last 25 years, gadobutrol has been administered more than 100 million times worldwide providing a wealth of data related to safety.Objective The aim of this study was to perform a thorough review and status update on gadobutrol's safety.Materials and Methods Safety data from the clinical phase II–IV program and postmarketing surveillance were descriptively analyzed from February 1998 until December 31, 2022. Literature on special at-risk populations and specific safety aspects was critically summarized.Results Forty-five clinical phase II–IV studies recruited 7856 patients receiving gadobutrol. Drug-related adverse events (AEs) were reported in 3.4% and serious AEs in
      PubDate: Fri, 01 Mar 2024 00:00:00 GMT-
       
  • AI-Based Measurement of Lumbar Spinal Stenosis on MRI: External Evaluation
           of a Fully Automated Model

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      Authors: Bogdanovic; Sanja; Staib, Matthias; Schleiniger, Marco; Steiner, Livio; Schwarz, Leonardo; Germann, Christoph; Sutter, Reto; Fritz, Benjamin
      Abstract: imageObjectives The aim of this study was to clinically validate a fully automated AI model for magnetic resonance imaging (MRI)–based quantifications of lumbar spinal canal stenosis.Materials and Methods This retrospective study included lumbar spine MRI of 100 consecutive clinical patients (56 ± 17 years; 43 females, 57 males) performed on clinical 1.5 (51 examinations) and 3 T MRI scanners (49 examinations) with heterogeneous clinical imaging protocols. The AI model performed segmentations of the thecal sac on axial T2-weighted sequences. Based on these segmentations, the anteroposterior (AP) and mediolateral (ML) distance, and the area of the thecal sac were measured in a fully automated manner. For comparison, 2 fellowship-trained musculoskeletal radiologists performed the same segmentations and measurements independently. Statistics included 1-sample t tests, the intraclass correlation coefficient (ICC), Bland-Altman plots, and Dice coefficients. A P value of
      PubDate: Fri, 01 Mar 2024 00:00:00 GMT-
       
  • Morphological and Quantitative Parametric MRI Follow-up of Cartilage
           Changes Before and After Intra-articular Injection Therapy in Patients
           With Mild to Moderate Knee Osteoarthritis: A Randomized,
           Placebo-Controlled Trial

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      Authors: Tschopp; Marcel; Pfirrmann, Christian W.A.; Brunner, Florian; Fucentese, Sandro F.; Galley, Julien; Stern, Christoph; Sutter, Reto; Catanzaro, Sabrina; Kühne, Nathalie; Rosskopf, Andrea B.
      Abstract: imageBackground Intra-articular injections are routinely used for conservative treatment of knee osteoarthritis (OA). The detailed comparative therapeutic effects of these injections on cartilage tissue are still unclear.Objective The aim of this study was to detect and compare knee cartilage changes after intra-articular injection of glucocorticoid, hyaluronic acid, or platelet-rich plasma (PRP) to placebo using quantitative (T2 and T2* mapping) and morphological magnetic resonance imaging parameters in patients with mild or moderate osteoarthritis.Materials and Methods In a double-blinded, placebo-controlled, single-center trial, knees with mild or moderate osteoarthritis (Kellgren-Lawrence grade 1–3) were randomly assigned to an intra-articular injection with 1 of these substances: glucocorticoid, hyaluronic acid, PRP, or placebo. Cartilage degeneration on baseline and follow-up magnetic resonance imaging scans (after 3 and 12 months) was assessed by 2 readers using quantitative T2 and T2* times (milliseconds) and morphological parameters (modified Outerbridge grading, subchondral bone marrow edema, subchondral cysts, osteophytes).Results One hundred twenty knees (30 knees per treatment group) were analyzed with a median patient age of 60 years (interquartile range, 54.0–68.0 years). Interreader reliability was good for T2 (ICC, 0.76; IQR, 0.68–0.83) and T2* (ICC, 0.83; IQR, 0.76–0.88) measurements. Morphological parameters showed no significant changes between all groups after 3 and 12 months. T2 mapping after 12 months showed the following significant (P = 0.001–0.03) changes between groups in 6 of 14 compartments: values after PRP injection decreased compared with glucocorticoid in 4 compartments (complete medial femoral condyle and central part of lateral condyle) and compared with placebo in 2 compartments (anterior and central part of medial tibial plateau); values after glucocorticoid injection decreased compared with placebo in 1 compartment (central part of medial tibial plateau). No significant changes were seen for T2 and T2* times after 3 months and T2* times after 12 months. No correlation was found between T2/T2* times and Kellgren-Lawrence grade, age, body mass index, or pain (Spearman ρ, −0.23 to 0.18).Conclusions Platelet-rich plasma injection has a positive long-term effect on cartilage quality in the medial femoral compartment compared to glucocorticoid, resulting in significantly improved T2 values after 12 months. For morphological cartilage parameters, injections with glucocorticoid, PRP, or hyaluronic acid showed no better effect in the short or long term compared with placebo.
      PubDate: Wed, 28 Feb 2024 00:00:00 GMT-
       
  • The Small Pixel Effect in Ultra-High-Resolution Photon-Counting CT of the
           Lumbar Spine

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      Authors: Huflage; Henner; Hendel, Robin; Woznicki, Piotr; Conrads, Nora; Feldle, Philipp; Patzer, Theresa Sophie; Ergün, Süleyman; Bley, Thorsten Alexander; Kunz, Andreas Steven; Grunz, Jan-Peter
      Abstract: imageObjectives Image acquisition in ultra-high-resolution (UHR) scan mode does not impose a dose penalty in photon-counting CT (PCCT). This study aims to investigate the dose saving potential of using UHR instead of standard-resolution PCCT for lumbar spine imaging.Materials and Methods Eight cadaveric specimens were examined with 7 dose levels (5–35 mGy) each in UHR (120 × 0.2 mm) and standard-resolution acquisition mode (144 × 0.4 mm) on a first-generation PCCT scanner. The UHR images were reconstructed with 3 dedicated bone kernels (Br68 [spatial frequency at 10% of the modulation transfer function 14.5 line pairs/cm], Br76 [21.0], and Br84 [27.9]), standard-resolution images with Br68 and Br76. Using automatic segmentation, contrast-to-noise ratios (CNRs) were established for lumbar vertebrae and psoas muscle tissue. In addition, image quality was assessed subjectively by 19 independent readers (15 radiologists, 4 surgeons) using a browser-based forced choice comparison tool totaling 16,974 performed pairwise tests. Pearson's correlation coefficient (r) was used to analyze the relationship between CNR and subjective image quality rankings, and Kendall W was calculated to assess interrater agreement.Results Irrespective of radiation exposure level, CNR was higher in UHR datasets than in standard-resolution images postprocessed with the same reconstruction parameters. The use of sharper convolution kernels entailed lower CNR but higher subjective image quality depending on radiation dose. Subjective assessment revealed high interrater agreement (W = 0.86; P < 0.001) with UHR images being preferred by readers in the majority of comparisons on each dose level. Substantial correlation was ascertained between CNR and the subjective image quality ranking (all r's ≥ 0.95; P < 0.001)Conclusions In PCCT of the lumbar spine, UHR mode's smaller pixel size facilitates a considerable CNR increase over standard-resolution imaging, which can either be used for dose reduction or higher spatial resolution depending on the selected convolution kernel.
      PubDate: Thu, 08 Feb 2024 00:00:00 GMT-
       
  • A Novel Reconstruction Technique to Reduce Stair-Step Artifacts in
           Sequential Mode Coronary CT Angiography

    • Free pre-print version: Loading...

      Authors: Moser; Lukas Jakob; Mergen, Victor; Allmendinger, Thomas; Manka, Robert; Eberhard, Matthias; Alkadhi, Hatem
      Abstract: imagePurpose Prospective electrocardiography-triggering is one of the most commonly used cardiac computed tomography (CT) scan modes but can be susceptible to stair-step artifacts in the transition areas of an acquisition over multiple cardiac cycles. We evaluated a novel reconstruction algorithm to reduce the occurrence and severity of such artifacts in sequential coronary CT angiography.Materials and Methods In this institutional review board–approved, retrospective study, 50 consecutive patients (16 females; mean age, 58.9 ± 15.2) were included who underwent coronary CT angiography on a dual-source photon-counting detector CT in the sequential ultra-high-resolution mode with a detector collimation of 120 × 0.2 mm. Each scan was reconstructed without (hereafter called standard reconstruction) and with the novel ZeeFree reconstruction algorithm, which aims to minimize stair-step artifacts. The presence and extent of stair-step artifacts were rated by 2 independent, blinded readers on a 4-point discrete visual scale. The relationship between the occurrences of artifacts was correlated with the average and variability of heart rate and with patient characteristics.Results A total of 504 coronary segments were included into the analyses. In standard reconstructions, reader 1 reported stair-step artifacts in 40/504 (7.9%) segments, from which 12/504 led to nondiagnostic image quality (2.4% of all segments). Reader 2 reported 56/504 (11.1%) stair-step artifacts, from which 11/504 lead to nondiagnostic image quality (2.2% of all segments). With the ZeeFree algorithm, 9/12 (75%) and 8/11 (73%) of the nondiagnostic segments improved to a diagnostic quality for readers 1 and 2, respectively. The ZeeFree reconstruction algorithm significantly reduced the frequency and extent of stair-step artifacts compared with standard reconstructions for both readers (P < 0.001, each). Heart rate variability and body mass index were significantly related to the occurrence of stair-step artifacts (P < 0.05).Conclusions Our study demonstrates the feasibility and effectiveness of a novel reconstruction algorithm leading to a significant reduction of stair-step artifacts and, hence, a reduction of coronary segments with a nondiagnostic image quality in sequential ultra-high-resolution coronary photon-counting detector CT angiography.
      PubDate: Tue, 30 Jan 2024 00:00:00 GMT-
       
 
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  Subjects -> COMMUNICATIONS (Total: 518 journals)
    - COMMUNICATIONS (446 journals)
    - DIGITAL AND WIRELESS COMMUNICATION (31 journals)
    - HUMAN COMMUNICATION (19 journals)
    - MEETINGS AND CONGRESSES (7 journals)
    - RADIO, TELEVISION AND CABLE (15 journals)

COMMUNICATIONS (446 journals)                  1 2 3 | Last

Showing 1 - 200 of 480 Journals sorted by number of followers
Evidence Based Library and Information Practice     Open Access   (Followers: 592)
Information Technologies & International Development     Open Access   (Followers: 87)
Information, Communication & Society     Hybrid Journal   (Followers: 79)
Journal of Communication     Hybrid Journal   (Followers: 64)
Convergence The International Journal of Research into New Media Technologies     Hybrid Journal   (Followers: 50)
Augmentative and Alternative Communication     Hybrid Journal   (Followers: 48)
e-learning and education (eleed)     Open Access   (Followers: 40)
Communication Theory     Hybrid Journal   (Followers: 36)
Journal of Computer-Mediated Communication     Open Access   (Followers: 35)
New Media and Mass Communication     Open Access   (Followers: 33)
Communication     Open Access   (Followers: 31)
Journal of the Association for Information Systems     Open Access   (Followers: 31)
Communication, Culture & Critique     Hybrid Journal   (Followers: 30)
Electronic Journal of Knowledge Management     Open Access   (Followers: 30)
Journalism & Mass Communication Quarterly     Hybrid Journal   (Followers: 29)
Health Information Management Journal     Hybrid Journal   (Followers: 29)
Advances in Journalism and Communication     Open Access   (Followers: 29)
Journal of Medical Internet Research     Open Access   (Followers: 28)
Advances in Image and Video Processing     Open Access   (Followers: 28)
New Review of Film and Television Studies     Hybrid Journal   (Followers: 27)
Discourse, Context & Media     Open Access   (Followers: 26)
Proceedings of the American Society for Information Science and Technology     Hybrid Journal   (Followers: 26)
Communication Papers : Media Literacy & Gender Studies     Open Access   (Followers: 25)
Journal of Media and Communication Studies     Open Access   (Followers: 25)
International Journal of Advanced Media and Communication     Hybrid Journal   (Followers: 23)
Journal of Information, Communication and Ethics in Society     Hybrid Journal   (Followers: 23)
Information & Communications Technology Law     Hybrid Journal   (Followers: 22)
Framework : The Journal of Cinema and Media     Full-text available via subscription   (Followers: 22)
Quarterly Review of Film and Video     Hybrid Journal   (Followers: 21)
Journalism & Mass Communication Educator     Hybrid Journal   (Followers: 21)
Screen     Hybrid Journal   (Followers: 20)
Journal of International and Intercultural Communication     Hybrid Journal   (Followers: 20)
Global Media and Communication     Hybrid Journal   (Followers: 19)
Language and Speech     Hybrid Journal   (Followers: 19)
Journal of Media Psychology     Hybrid Journal   (Followers: 19)
Journal of Science Communication     Open Access   (Followers: 19)
Journalism & Communication Monographs     Hybrid Journal   (Followers: 19)
Human Communication Research     Hybrid Journal   (Followers: 18)
IEEE Transactions on Smart Grid     Hybrid Journal   (Followers: 18)
Speech, Language and Hearing     Hybrid Journal   (Followers: 17)
Communication Booknotes Quarterly     Hybrid Journal   (Followers: 16)
Journal of Magnetic Resonance Imaging     Hybrid Journal   (Followers: 16)
International Journal of Information Technology, Communications and Convergence     Hybrid Journal   (Followers: 16)
Journal for the History of Rhetoric     Hybrid Journal   (Followers: 16)
Journal of Media Ethics : Exploring Questions of Media Morality     Hybrid Journal   (Followers: 15)
Public Relations Review     Hybrid Journal   (Followers: 15)
Quarterly Journal of Speech     Hybrid Journal   (Followers: 15)
Communications of the Association for Information Systems     Open Access   (Followers: 15)
International Journal of Computer Science and Telecommunications     Open Access   (Followers: 15)
Media and Communication     Open Access   (Followers: 15)
Journal of Broadcasting & Electronic Media     Hybrid Journal   (Followers: 14)
Journal of the American College of Radiology     Hybrid Journal   (Followers: 14)
Global Media Journal     Open Access   (Followers: 14)
Communications in Mobile Computing     Open Access   (Followers: 14)
Celebrity Studies     Hybrid Journal   (Followers: 14)
International Journal of Information and Communication Technology Education     Full-text available via subscription   (Followers: 13)
Journal of Technical Writing and Communication     Full-text available via subscription   (Followers: 12)
Chinese Journal of Communication     Hybrid Journal   (Followers: 12)
MedieKultur. Journal of media and communication research     Open Access   (Followers: 12)
Pragmatics and Society     Hybrid Journal   (Followers: 12)
Qualitative Studies     Open Access   (Followers: 12)
ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP)     Hybrid Journal   (Followers: 12)
IEICE - Transactions on Fundamentals of Electronics, Communications and Computer Sciences     Full-text available via subscription   (Followers: 11)
IET Communications     Open Access   (Followers: 11)
Qualitative Research Reports in Communication     Hybrid Journal   (Followers: 11)
International Journal of Business Communication     Hybrid Journal   (Followers: 10)
Electronics and Communications in Japan     Hybrid Journal   (Followers: 10)
Informal Logic     Open Access   (Followers: 10)
Communication & Language at Work     Open Access   (Followers: 10)
C&SC - Communication & Social Change     Open Access   (Followers: 10)
Openings : Studies in Book Art     Open Access   (Followers: 10)
Creative Artist : A Journal of Theatre and Media Studies     Open Access   (Followers: 10)
Journal of Radiotherapy in Practice     Hybrid Journal   (Followers: 9)
Magnetic Resonance Imaging     Hybrid Journal   (Followers: 9)
Interaction Studies     Hybrid Journal   (Followers: 9)
Journal of Language and Politics     Hybrid Journal   (Followers: 9)
Fibreculture Journal     Open Access   (Followers: 9)
Journal of Islamic Manuscripts     Hybrid Journal   (Followers: 9)
Comedy Studies     Hybrid Journal   (Followers: 9)
International Journal of Electronics and Telecommunications     Open Access   (Followers: 9)
Communication & Sport     Hybrid Journal   (Followers: 9)
tripleC : Communication, Capitalism & Critique. Open Access Journal for a Global Sustainable Information Society     Open Access   (Followers: 9)
International Journal of Ad Hoc and Ubiquitous Computing     Hybrid Journal   (Followers: 8)
Seminars in Interventional Radiology     Hybrid Journal   (Followers: 8)
Information Design Journal     Hybrid Journal   (Followers: 8)
Myth & Symbol     Hybrid Journal   (Followers: 8)
Black Camera     Full-text available via subscription   (Followers: 8)
Cross-cultural Communication     Open Access   (Followers: 8)
Investigative Radiology     Hybrid Journal   (Followers: 7)
Pediatric Radiology     Hybrid Journal   (Followers: 7)
Technical Communication     Full-text available via subscription   (Followers: 7)
African Journal of Information and Communication     Open Access   (Followers: 7)
Annals of Telecommunications     Hybrid Journal   (Followers: 7)
Intelligent Information Management     Open Access   (Followers: 7)
African Journal of Information Systems     Open Access   (Followers: 7)
China Communications     Full-text available via subscription   (Followers: 7)
Journal of Radio & Audio Media     Hybrid Journal   (Followers: 6)
Sign Language Studies     Full-text available via subscription   (Followers: 6)
Review of Cognitive Linguistics     Hybrid Journal   (Followers: 6)
Foundations and Trends® in Communications and Information Theory     Full-text available via subscription   (Followers: 6)
Journal of Professional Communication     Open Access   (Followers: 6)
Informatics     Open Access   (Followers: 6)
Porn Studies     Hybrid Journal   (Followers: 6)
Journal of Advertising Education     Hybrid Journal   (Followers: 5)
The Communication Review     Hybrid Journal   (Followers: 5)
Journal of Asian Pacific Communication     Hybrid Journal   (Followers: 5)
Journal of Graph Theory     Hybrid Journal   (Followers: 5)
Middle East Journal of Culture and Communication     Hybrid Journal   (Followers: 5)
CIC. Cuadernos de Informacion y Comunicacion     Open Access   (Followers: 5)
Women's Studies in Communication     Hybrid Journal   (Followers: 5)
Global Advances in Business Communication     Open Access   (Followers: 5)
Transactions on Emerging Telecommunications Technologies     Hybrid Journal   (Followers: 4)
Journal of Radiology Nursing     Hybrid Journal   (Followers: 4)
Neuroimaging Clinics of North America     Full-text available via subscription   (Followers: 4)
Telecommunication Systems     Hybrid Journal   (Followers: 4)
Terminology     Hybrid Journal   (Followers: 4)
Tijdschrift voor Communicatiewetenschappen     Full-text available via subscription   (Followers: 4)
Gesture     Hybrid Journal   (Followers: 4)
Communicatio : South African Journal for Communication Theory and Research     Hybrid Journal   (Followers: 4)
Media International Australia     Hybrid Journal   (Followers: 4)
International Review of Pragmatics     Hybrid Journal   (Followers: 4)
International Journal of Cooperative Information Systems     Hybrid Journal   (Followers: 4)
International Journal of Information Communication Technologies and Human Development     Full-text available via subscription   (Followers: 4)
Medical Writing     Hybrid Journal   (Followers: 4)
Journal of Media Innovations     Open Access   (Followers: 4)
Journal of Development and Communication Studies     Open Access   (Followers: 4)
International Journal of Autonomous and Adaptive Communications Systems     Hybrid Journal   (Followers: 3)
Magnetic Resonance Materials in Physics, Biology and Medicine     Hybrid Journal   (Followers: 3)
Solid State Nuclear Magnetic Resonance     Hybrid Journal   (Followers: 3)
Journal of Location Based Services     Hybrid Journal   (Followers: 3)
Etudes de communication     Open Access   (Followers: 3)
Science China Information Sciences     Hybrid Journal   (Followers: 3)
Language, Interaction and Acquisition     Hybrid Journal   (Followers: 3)
Sign Language & Linguistics     Hybrid Journal   (Followers: 3)
Kaleidoscope : A Graduate Journal of Qualitative Communication Research     Open Access   (Followers: 3)
Pacific Asia Journal of the Association for Information Systems     Open Access   (Followers: 3)
Journal of Community Informatics     Open Access   (Followers: 3)
International Journal of Intelligence Science     Open Access   (Followers: 3)
International Journal of Interdisciplinary Telecommunications and Networking     Full-text available via subscription   (Followers: 3)
Journal of International Communication     Hybrid Journal   (Followers: 3)
MediaTropes     Open Access   (Followers: 3)
Nonprofit Communications Report     Hybrid Journal   (Followers: 3)
Journal of Media Literacy Education     Open Access   (Followers: 3)
Seton Hall Journal of Sports and Entertainment Law     Open Access   (Followers: 3)
Social Networking     Open Access   (Followers: 3)
Imaging Decisions MRI     Hybrid Journal   (Followers: 2)
Journal of Cardiovascular Computed Tomography     Hybrid Journal   (Followers: 2)
Language Problems & Language Planning     Hybrid Journal   (Followers: 2)
Research Journal of Information Technology     Open Access   (Followers: 2)
Área Abierta     Open Access   (Followers: 2)
Comunicación y Medios     Open Access   (Followers: 2)
Middle East Media Educator     Open Access   (Followers: 2)
Revue française des sciences de l’information et de la communication     Open Access   (Followers: 2)
Journal of Argumentation in Context     Hybrid Journal   (Followers: 2)
Metaphor and the Social World     Hybrid Journal   (Followers: 2)
Journal of Organizational Knowledge Communication     Open Access   (Followers: 2)
GSTF Journal on Media & Communications     Open Access   (Followers: 2)
Chasqui. Revista Latinoamericana de Comunicación     Open Access   (Followers: 2)
Bioelectromagnetics     Hybrid Journal   (Followers: 1)
Radioelectronics and Communications Systems     Hybrid Journal   (Followers: 1)
McMaster Journal of Communication     Open Access   (Followers: 1)
Palabra Clave     Open Access   (Followers: 1)
International Journal of Knowledge and Systems Science     Full-text available via subscription   (Followers: 1)
Documentación de las Ciencias de la Información     Open Access   (Followers: 1)
International Journal of Trust Management in Computing and Communications     Hybrid Journal   (Followers: 1)
South African Journal of Communication Disorders     Open Access   (Followers: 1)
FLEKS : Scandinavian Journal of Intercultural Theory and Practice     Open Access   (Followers: 1)
Public Journal of Semiotics     Open Access   (Followers: 1)
Journal of Language and Sexuality     Hybrid Journal   (Followers: 1)
Language and Dialogue     Hybrid Journal   (Followers: 1)
Anuario electrónico de estudios en Comunicación Social "Disertaciones"     Open Access   (Followers: 1)
3C TIC     Open Access   (Followers: 1)
Cuadernos.info     Open Access  
Comunicación     Open Access  
De Signos y Sentidos     Open Access  
Distúrbios da Comunicação     Open Access  
Wacana : Jurnal Sosial dan Humaniora     Open Access  
Question     Open Access  
Llengua, societat i comunicació     Open Access  
Informatio. Revista del Instituto de Información de la Facultad de Información y Comunicación     Open Access  
Communiquer : Revue de communication sociale et publique     Open Access  
Cuadernos de H Ideas     Open Access  
Punto Cero     Open Access  
Netcom     Open Access  
Observatorio (OBS*)     Open Access  
Vivat Academia     Open Access  
Commons. Revista de Comunicación y Ciudadanía Digital     Open Access  
Journal of Information and Organizational Sciences     Open Access  
Questions de communication     Open Access  
Quaderni     Open Access  
Communication et organisation     Open Access  
International Journal of Telework and Telecommuting Technologies     Full-text available via subscription  
Virtualidad, Educación y Ciencia     Open Access  
Revista Contracampo     Open Access  
Mediaciones Sociales     Open Access  
Historia y Comunicación Social     Open Access  
Pixel-Bit. Revista de Medios y Educacion     Open Access  
Cuadernos de Informacion     Open Access  
Journal of Modern Periodical Studies     Full-text available via subscription  
Tic & société     Open Access  

        1 2 3 | Last

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School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
Email: journaltocs@hw.ac.uk
Tel: +00 44 (0)131 4513762
 


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