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  Subjects -> CHEMISTRY (Total: 891 journals)
    - ANALYTICAL CHEMISTRY (55 journals)
    - CHEMISTRY (621 journals)
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    - INORGANIC CHEMISTRY (45 journals)
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CHEMISTRY (621 journals)                  1 2 3 4 | Last

Showing 1 - 200 of 735 Journals sorted alphabetically
2D Materials     Hybrid Journal   (Followers: 14)
Accreditation and Quality Assurance: Journal for Quality, Comparability and Reliability in Chemical Measurement     Hybrid Journal   (Followers: 26)
ACS Catalysis     Full-text available via subscription   (Followers: 43)
ACS Chemical Neuroscience     Full-text available via subscription   (Followers: 21)
ACS Combinatorial Science     Full-text available via subscription   (Followers: 23)
ACS Macro Letters     Full-text available via subscription   (Followers: 26)
ACS Medicinal Chemistry Letters     Full-text available via subscription   (Followers: 41)
ACS Nano     Full-text available via subscription   (Followers: 274)
ACS Photonics     Full-text available via subscription   (Followers: 14)
ACS Symposium Series     Full-text available via subscription  
ACS Synthetic Biology     Full-text available via subscription   (Followers: 24)
Acta Chemica Iasi     Open Access   (Followers: 5)
Acta Chimica Slovaca     Open Access   (Followers: 2)
Acta Chimica Slovenica     Open Access   (Followers: 1)
Acta Chromatographica     Full-text available via subscription   (Followers: 9)
Acta Facultatis Medicae Naissensis     Open Access  
Acta Metallurgica Sinica (English Letters)     Hybrid Journal   (Followers: 7)
Acta Scientifica Naturalis     Open Access   (Followers: 3)
adhäsion KLEBEN & DICHTEN     Hybrid Journal   (Followers: 6)
Adhesion Adhesives & Sealants     Hybrid Journal   (Followers: 9)
Adsorption Science & Technology     Full-text available via subscription   (Followers: 6)
Advanced Functional Materials     Hybrid Journal   (Followers: 57)
Advanced Science Focus     Free   (Followers: 5)
Advances in Chemical Engineering and Science     Open Access   (Followers: 66)
Advances in Chemical Science     Open Access   (Followers: 18)
Advances in Chemistry     Open Access   (Followers: 21)
Advances in Colloid and Interface Science     Full-text available via subscription   (Followers: 19)
Advances in Drug Research     Full-text available via subscription   (Followers: 23)
Advances in Environmental Chemistry     Open Access   (Followers: 5)
Advances in Enzyme Research     Open Access   (Followers: 10)
Advances in Fluorine Science     Full-text available via subscription   (Followers: 9)
Advances in Fuel Cells     Full-text available via subscription   (Followers: 17)
Advances in Heterocyclic Chemistry     Full-text available via subscription   (Followers: 11)
Advances in Materials Physics and Chemistry     Open Access   (Followers: 25)
Advances in Nanoparticles     Open Access   (Followers: 15)
Advances in Organometallic Chemistry     Full-text available via subscription   (Followers: 16)
Advances in Polymer Science     Hybrid Journal   (Followers: 43)
Advances in Protein Chemistry     Full-text available via subscription   (Followers: 18)
Advances in Protein Chemistry and Structural Biology     Full-text available via subscription   (Followers: 19)
Advances in Quantum Chemistry     Full-text available via subscription   (Followers: 6)
Advances in Science and Technology     Full-text available via subscription   (Followers: 12)
African Journal of Bacteriology Research     Open Access  
African Journal of Chemical Education     Open Access   (Followers: 3)
African Journal of Pure and Applied Chemistry     Open Access   (Followers: 7)
Agrokémia és Talajtan     Full-text available via subscription   (Followers: 2)
Al-Kimia : Jurnal Penelitian Sains Kimia     Open Access  
Alkaloids: Chemical and Biological Perspectives     Full-text available via subscription   (Followers: 2)
AMB Express     Open Access   (Followers: 1)
Ambix     Hybrid Journal   (Followers: 3)
American Journal of Biochemistry and Biotechnology     Open Access   (Followers: 64)
American Journal of Biochemistry and Molecular Biology     Open Access   (Followers: 17)
American Journal of Chemistry     Open Access   (Followers: 30)
American Journal of Plant Physiology     Open Access   (Followers: 11)
American Mineralogist     Hybrid Journal   (Followers: 15)
Analyst     Full-text available via subscription   (Followers: 38)
Angewandte Chemie     Hybrid Journal   (Followers: 165)
Angewandte Chemie International Edition     Hybrid Journal   (Followers: 244)
Annales UMCS, Chemia     Open Access  
Annals of Clinical Chemistry and Laboratory Medicine     Open Access   (Followers: 5)
Annual Reports in Computational Chemistry     Full-text available via subscription   (Followers: 3)
Annual Reports Section A (Inorganic Chemistry)     Full-text available via subscription   (Followers: 4)
Annual Reports Section B (Organic Chemistry)     Full-text available via subscription   (Followers: 9)
Annual Review of Chemical and Biomolecular Engineering     Full-text available via subscription   (Followers: 12)
Annual Review of Food Science and Technology     Full-text available via subscription   (Followers: 13)
Anti-Infective Agents     Hybrid Journal   (Followers: 3)
Antiviral Chemistry and Chemotherapy     Hybrid Journal   (Followers: 2)
Applied Organometallic Chemistry     Hybrid Journal   (Followers: 9)
Applied Spectroscopy     Full-text available via subscription   (Followers: 23)
Applied Surface Science     Hybrid Journal   (Followers: 31)
Arabian Journal of Chemistry     Open Access   (Followers: 6)
ARKIVOC     Open Access   (Followers: 1)
Asian Journal of Biochemistry     Open Access   (Followers: 2)
Atomization and Sprays     Full-text available via subscription   (Followers: 4)
Australian Journal of Chemistry     Hybrid Journal   (Followers: 7)
Autophagy     Hybrid Journal   (Followers: 2)
Avances en Quimica     Open Access  
Biochemical Pharmacology     Hybrid Journal   (Followers: 10)
Biochemistry     Full-text available via subscription   (Followers: 350)
Biochemistry Insights     Open Access   (Followers: 6)
Biochemistry Research International     Open Access   (Followers: 6)
BioChip Journal     Hybrid Journal  
Bioinorganic Chemistry and Applications     Open Access   (Followers: 10)
Bioinspired Materials     Open Access   (Followers: 5)
Biointerface Research in Applied Chemistry     Open Access   (Followers: 2)
Biointerphases     Open Access   (Followers: 1)
Biology, Medicine, & Natural Product Chemistry     Open Access   (Followers: 2)
Biomacromolecules     Full-text available via subscription   (Followers: 21)
Biomass Conversion and Biorefinery     Partially Free   (Followers: 10)
Biomedical Chromatography     Hybrid Journal   (Followers: 7)
Biomolecular NMR Assignments     Hybrid Journal   (Followers: 3)
BioNanoScience     Partially Free   (Followers: 5)
Bioorganic & Medicinal Chemistry     Hybrid Journal   (Followers: 129)
Bioorganic & Medicinal Chemistry Letters     Hybrid Journal   (Followers: 85)
Bioorganic Chemistry     Hybrid Journal   (Followers: 10)
Biopolymers     Hybrid Journal   (Followers: 18)
Biosensors     Open Access   (Followers: 2)
Biotechnic and Histochemistry     Hybrid Journal   (Followers: 2)
Bitácora Digital     Open Access  
Boletin de la Sociedad Chilena de Quimica     Open Access  
Bulletin of the Chemical Society of Ethiopia     Open Access   (Followers: 2)
Bulletin of the Chemical Society of Japan     Full-text available via subscription   (Followers: 24)
Bulletin of the Korean Chemical Society     Hybrid Journal   (Followers: 1)
C - Journal of Carbon Research     Open Access   (Followers: 3)
Cakra Kimia (Indonesian E-Journal of Applied Chemistry)     Open Access  
Canadian Association of Radiologists Journal     Full-text available via subscription   (Followers: 2)
Canadian Journal of Chemistry     Hybrid Journal   (Followers: 10)
Canadian Mineralogist     Full-text available via subscription   (Followers: 6)
Carbohydrate Research     Hybrid Journal   (Followers: 26)
Carbon     Hybrid Journal   (Followers: 71)
Catalysis for Sustainable Energy     Open Access   (Followers: 8)
Catalysis Reviews: Science and Engineering     Hybrid Journal   (Followers: 7)
Catalysis Science and Technology     Free   (Followers: 8)
Catalysis Surveys from Asia     Hybrid Journal   (Followers: 3)
Catalysts     Open Access   (Followers: 10)
Cellulose     Hybrid Journal   (Followers: 7)
Cereal Chemistry     Full-text available via subscription   (Followers: 4)
ChemBioEng Reviews     Full-text available via subscription   (Followers: 1)
ChemCatChem     Hybrid Journal   (Followers: 8)
Chemical and Engineering News     Free   (Followers: 18)
Chemical Bulletin of Kazakh National University     Open Access  
Chemical Communications     Full-text available via subscription   (Followers: 73)
Chemical Engineering Research and Design     Hybrid Journal   (Followers: 26)
Chemical Research in Chinese Universities     Hybrid Journal   (Followers: 3)
Chemical Research in Toxicology     Full-text available via subscription   (Followers: 22)
Chemical Reviews     Full-text available via subscription   (Followers: 191)
Chemical Science     Open Access   (Followers: 24)
Chemical Technology     Open Access   (Followers: 24)
Chemical Vapor Deposition     Hybrid Journal   (Followers: 5)
Chemie in Unserer Zeit     Hybrid Journal   (Followers: 56)
Chemie-Ingenieur-Technik (Cit)     Hybrid Journal   (Followers: 24)
ChemInform     Hybrid Journal   (Followers: 8)
Chemistry & Biodiversity     Hybrid Journal   (Followers: 7)
Chemistry & Biology     Full-text available via subscription   (Followers: 32)
Chemistry & Industry     Hybrid Journal   (Followers: 7)
Chemistry - A European Journal     Hybrid Journal   (Followers: 163)
Chemistry - An Asian Journal     Hybrid Journal   (Followers: 16)
Chemistry and Materials Research     Open Access   (Followers: 21)
Chemistry Central Journal     Open Access   (Followers: 4)
Chemistry Education Research and Practice     Free   (Followers: 5)
Chemistry in Education     Open Access   (Followers: 9)
Chemistry International     Hybrid Journal   (Followers: 2)
Chemistry Letters     Full-text available via subscription   (Followers: 44)
Chemistry of Materials     Full-text available via subscription   (Followers: 254)
Chemistry of Natural Compounds     Hybrid Journal   (Followers: 9)
Chemistry World     Full-text available via subscription   (Followers: 19)
Chemistry-Didactics-Ecology-Metrology     Open Access   (Followers: 1)
ChemistryOpen     Open Access   (Followers: 1)
Chemkon - Chemie Konkret, Forum Fuer Unterricht Und Didaktik     Hybrid Journal  
Chemoecology     Hybrid Journal   (Followers: 4)
Chemometrics and Intelligent Laboratory Systems     Hybrid Journal   (Followers: 14)
Chemosensors     Open Access  
ChemPhysChem     Hybrid Journal   (Followers: 11)
ChemPlusChem     Hybrid Journal   (Followers: 2)
ChemTexts     Hybrid Journal  
CHIMIA International Journal for Chemistry     Full-text available via subscription   (Followers: 2)
Chinese Journal of Chemistry     Hybrid Journal   (Followers: 6)
Chinese Journal of Polymer Science     Hybrid Journal   (Followers: 11)
Chromatographia     Hybrid Journal   (Followers: 24)
Chromatography     Open Access   (Followers: 2)
Chromatography Research International     Open Access   (Followers: 6)
Clay Minerals     Full-text available via subscription   (Followers: 10)
Cogent Chemistry     Open Access   (Followers: 1)
Colloid and Interface Science Communications     Open Access  
Colloid and Polymer Science     Hybrid Journal   (Followers: 11)
Colloids and Interfaces     Open Access  
Colloids and Surfaces B: Biointerfaces     Hybrid Journal   (Followers: 6)
Combinatorial Chemistry & High Throughput Screening     Hybrid Journal   (Followers: 4)
Combustion Science and Technology     Hybrid Journal   (Followers: 22)
Comments on Inorganic Chemistry: A Journal of Critical Discussion of the Current Literature     Hybrid Journal   (Followers: 2)
Communications Chemistry     Open Access  
Composite Interfaces     Hybrid Journal   (Followers: 7)
Comprehensive Chemical Kinetics     Full-text available via subscription   (Followers: 1)
Comptes Rendus Chimie     Full-text available via subscription  
Comptes Rendus Physique     Full-text available via subscription   (Followers: 1)
Computational and Theoretical Chemistry     Hybrid Journal   (Followers: 9)
Computational Biology and Chemistry     Hybrid Journal   (Followers: 11)
Computational Chemistry     Open Access   (Followers: 2)
Computers & Chemical Engineering     Hybrid Journal   (Followers: 10)
Coordination Chemistry Reviews     Full-text available via subscription   (Followers: 3)
Copernican Letters     Open Access   (Followers: 1)
Corrosion Series     Full-text available via subscription   (Followers: 6)
Critical Reviews in Biochemistry and Molecular Biology     Hybrid Journal   (Followers: 5)
Croatica Chemica Acta     Open Access  
Crystal Structure Theory and Applications     Open Access   (Followers: 4)
CrystEngComm     Full-text available via subscription   (Followers: 13)
Current Catalysis     Hybrid Journal   (Followers: 2)
Current Chromatography     Hybrid Journal  
Current Green Chemistry     Hybrid Journal  
Current Metabolomics     Hybrid Journal   (Followers: 5)
Current Microwave Chemistry     Hybrid Journal  
Current Opinion in Colloid & Interface Science     Hybrid Journal   (Followers: 9)
Current Opinion in Molecular Therapeutics     Full-text available via subscription   (Followers: 14)
Current Research in Chemistry     Open Access   (Followers: 8)
Current Science     Open Access   (Followers: 69)
Current Trends in Biotechnology and Chemical Research     Open Access   (Followers: 3)
Dalton Transactions     Full-text available via subscription   (Followers: 23)
Detection     Open Access   (Followers: 2)
Developments in Geochemistry     Full-text available via subscription   (Followers: 2)
Diamond and Related Materials     Hybrid Journal   (Followers: 12)
Dislocations in Solids     Full-text available via subscription  

        1 2 3 4 | Last

Journal Cover
Canadian Association of Radiologists Journal
Journal Prestige (SJR): 0.463
Citation Impact (citeScore): 1
Number of Followers: 2  
 
  Full-text available via subscription Subscription journal
ISSN (Online) 0846-5371
Published by Elsevier Homepage  [3163 journals]
  • A Brave New World Without Diagnostic Radiologists' Really'
    • Authors: Peter L. Munk
      First page: 119
      Abstract: Publication date: May 2018
      Source:Canadian Association of Radiologists Journal, Volume 69, Issue 2
      Author(s): Peter L. Munk


      PubDate: 2018-06-01T10:53:34Z
      DOI: 10.1016/j.carj.2018.03.004
       
  • Gadolinium-Based Contrast Agents in Kidney Disease: Comprehensive Review
           and Clinical Practice Guideline Issued by the Canadian Association of
           Radiologists
    • Authors: Nicola Schieda; Jason I. Blaichman; Andreu F. Costa; Rafael Glikstein; Casey Hurrell; Matthew James; Pejman Jabehdar Maralani; Wael Shabana; An Tang; Anne Tsampalieros; Christian van der Pol; Swapnil Hiremath
      Pages: 136 - 150
      Abstract: Publication date: May 2018
      Source:Canadian Association of Radiologists Journal, Volume 69, Issue 2
      Author(s): Nicola Schieda, Jason I. Blaichman, Andreu F. Costa, Rafael Glikstein, Casey Hurrell, Matthew James, Pejman Jabehdar Maralani, Wael Shabana, An Tang, Anne Tsampalieros, Christian van der Pol, Swapnil Hiremath
      Use of gadolinium-based contrast agents (GBCAs) in renal impairment is controversial, with physician and patient apprehension in acute kidney injury (AKI), chronic kidney disease (CKD), and dialysis because of concerns regarding nephrogenic systemic fibrosis (NSF). The position that GBCAs are absolutely contraindicated in AKI, CKD stage 4 or 5 (estimated glomerular filtration rate [eGFR] <30 mL/min/1.73 m2) and dialysis-dependent patients is outdated, and may limit access to clinically necessary contrast-enhanced MRI examinations. Following a comprehensive review of the literature and reported NSF cases to date, a committee of radiologists and nephrologists developed clinical practice guidelines to assist physicians in making decisions regarding GBCA administrations. In patients with mild-to-moderate CKD (eGFR ≥30 and <60 mL/min/1.73 m2), administration of standard doses of GBCA is safe and no additional precautions are necessary. In patients with AKI, with severe CKD (eGFR <30 mL/min/1.73 m2), or on dialysis, administration of GBCAs should be considered individually and alternative imaging modalities utilized whenever possible. If GBCAs are necessary, newer GBCAs may be administered with patient consent obtained by a physician (or their delegate), citing an exceedingly low risk (much less than 1%) of developing NSF. Standard GBCA dosing should be used; half or quarter dosing is not recommended and repeat injections should be avoided. Dialysis-dependent patients should receive dialysis; however, initiating dialysis or switching from peritoneal to hemodialysis to reduce the risk of NSF is unproven. Use of a macrocyclic ionic instead of macrocyclic nonionic GBCA or macrocyclic instead of newer linear GBCA to further prevent NSF is unproven. Gadopentetate dimeglumine, gadodiamide, and gadoversetamide remain absolutely contraindicated in patients with AKI, with stage 4 or 5 CKD, or on dialysis. The panel agreed that screening for renal disease is important but less critical when using macrocyclic and newer linear GBCAs. Monitoring for and reporting of potential cases of NSF in patients with AKI or CKD who have received GBCAs is recommended.

      PubDate: 2018-06-01T10:53:34Z
      DOI: 10.1016/j.carj.2017.11.002
       
  • Endoclip Magnetic Resonance Imaging Screening: A Local Practice Review
    • Authors: Fabio Accorsi; Alain Lalonde; David A. Leswick
      Pages: 162 - 168
      Abstract: Publication date: May 2018
      Source:Canadian Association of Radiologists Journal, Volume 69, Issue 2
      Author(s): Fabio Accorsi, Alain Lalonde, David A. Leswick
      Purpose Not all endoscopically placed clips (endoclips) are magnetic resonance imaging (MRI) compatible. At many institutions, endoclip screening is part of the pre-MRI screening process. Our objective is to determine the contribution of each step of this endoclip screening protocol in determining a patient's endoclip status at our institution. Methods A retrospective review of patients' endoscopic histories on general MRI screening forms for patients scanned during a 40-day period was performed to assess the percentage of patients that require endoclip screening at our institution. Following this, a prospective evaluation of 614 patients' endoclip screening determined the percentage of these patients ultimately exposed to each step in the protocol (exposure), and the percentage of patients whose endoclip status was determined with reasonable certainty by each step (determination). Results Exposure and determination values for each step were calculated as follows (exposure, determination): verbal interview (100%, 86%), review of past available imaging (14%, 36%), review of endoscopy report (9%, 57%), and new abdominal radiograph (4%, 96%), or CT (0.2%, 100%) for evaluation of potential endoclips. Only 1 patient did not receive MRI because of screening (in situ gastrointestinal endoclip identified). Conclusions Verbal interview is invaluable to endoclip screening, clearing 86% of patients with minimal monetary and time investment. Conversely, the limited availability of endoscopy reports and relevant past imaging somewhat restricts the determination rates of these. New imaging (radiograph or computed tomography) is required <5% of the time, and although costly and associated with patient irradiation, has excellent determination rates (above 96%) when needed.

      PubDate: 2018-06-01T10:53:34Z
      DOI: 10.1016/j.carj.2017.12.001
       
  • Mammography Clinical Image Quality and the False Positive Rate in a
           Canadian Breast Cancer Screening Program
    • Authors: Marie-Hélène Guertin; Isabelle Théberge; Hervé Tchala Vignon Zomahoun; Michel-Pierre Dufresne; Éric Pelletier; Jacques Brisson
      Pages: 169 - 175
      Abstract: Publication date: May 2018
      Source:Canadian Association of Radiologists Journal, Volume 69, Issue 2
      Author(s): Marie-Hélène Guertin, Isabelle Théberge, Hervé Tchala Vignon Zomahoun, Michel-Pierre Dufresne, Éric Pelletier, Jacques Brisson
      Purpose The study sought to determine if mammography quality is associated with the false positive (FP) rate in the Quebec breast cancer screening program in 2004 and 2005. Methods Mammography quality of a random sample of screen-film mammograms was evaluated by an expert radiologist following the criteria of the Canadian Association of Radiologists. For each screening examination, scores ranging from 1 (poor quality) to 5 (excellent quality) were attributed for positioning, compression, contrast, exposure level, sharpness, and artifacts. A final overall quality score (lower or higher) was also given. Poisson regression models with robust estimation of variance and adjusted for potential confounding factors were used to assess associations of mammography quality with the FP rate. Results Among 1,209 women without cancer, there were 104 (8.6%) FPs. Lower overall mammography quality is associated with an increase in the FP rate (risk ratio [RR], 1.4; 95% confidence interval [CI], 1.0-2.1; P = .07) but this increase was not statistically significant. Artifacts were associated with an increase in the FP rate (RR, 2.1; 95% CI, 1.3-3.3; P = .01) whereas lower quality of exposure level was related to a reduction of the FP rate (RR, 0.4; 95% CI, 0.1-1.0; P = .01). Lower quality scores for all other quality attributes were related to a nonstatistically significant increase in the FP rate of 10%-30%. Conclusions Artifacts can have a substantial effect on the FP rate. The effect of overall mammography quality on the FP rate may also be substantial and needs to be clarified.

      PubDate: 2018-06-01T10:53:34Z
      DOI: 10.1016/j.carj.2017.12.003
       
  • Magnetic Resonance Imaging of Cysts, Cystlike Lesions, and Their Mimickers
           Around the Knee Joint
    • Authors: Sumer N. Shikhare; Poh Lye Paul See; Hong Chou; Abeer Mohamed Al-Riyami; Wilfred C.G. Peh
      Pages: 197 - 214
      Abstract: Publication date: May 2018
      Source:Canadian Association of Radiologists Journal, Volume 69, Issue 2
      Author(s): Sumer N. Shikhare, Poh Lye Paul See, Hong Chou, Abeer Mohamed Al-Riyami, Wilfred C.G. Peh
      While interpreting routine magnetic resonance imaging (MRI) of the knee joint, a radiologist may encounter various cystic lesions such as ganglion, synovial, and meniscal cysts, among others. In some cases, MRI may demonstrate cystlike lesions around the knee due to fluid distention of normal bursa and recesses, the diagnosis of which should not be difficult if a radiologist is familiar with their characteristic location and MRI appearance. In addition, there are cyst mimickers such as hematomas, abscesses, vascular lesions, and neoplasms around knee joint that may pose a diagnostic challenge on routine MRI. Due to their atypical location and variable morphology, contrast administration is helpful as the enhancement pattern aids to differentiate them from cysts and cystlike lesions. This pictorial essay aims to classify cysts, cystlike lesions, and cyst mimickers in and around the knee joint based on their anatomic location and highlight their characteristic MRI features.

      PubDate: 2018-06-01T10:53:34Z
      DOI: 10.1016/j.carj.2017.12.002
       
  • Radiologists: A Keystone of Multidisciplinary Oncology Practice
    • Authors: Michael O'Keeffe; Peter L. Munk
      First page: 1
      Abstract: Publication date: February 2018
      Source:Canadian Association of Radiologists Journal, Volume 69, Issue 1
      Author(s): Michael O'Keeffe, Peter L. Munk


      PubDate: 2018-02-24T15:50:32Z
      DOI: 10.1016/j.carj.2018.01.001
       
  • Clinical Image Quality and Sensitivity in an Organized Mammography
           Screening Program
    • Authors: Isabelle Théberge; Marie-Hélène Guertin; Nathalie Vandal; Jean-Marc Daigle; Michel-Pierre Dufresne; Nancy Wadden; Rene Shumak; Caroline Samson; André Langlois; Isabelle Larocque; Linda Perron; Éric Pelletier; Jacques Brisson
      Pages: 16 - 23
      Abstract: Publication date: February 2018
      Source:Canadian Association of Radiologists Journal, Volume 69, Issue 1
      Author(s): Isabelle Théberge, Marie-Hélène Guertin, Nathalie Vandal, Jean-Marc Daigle, Michel-Pierre Dufresne, Nancy Wadden, Rene Shumak, Caroline Samson, André Langlois, Isabelle Larocque, Linda Perron, Éric Pelletier, Jacques Brisson
      Purpose The study sought to examine the association between clinical image quality of mammograms and screening sensitivity. Methods Four radiologists evaluated the clinical image quality of 374 invasive screen-detected cancers and 356 invasive interval breast cancers for which quality evaluation of screening mammograms could be assessed from cancers diagnosed among participants in the Quebec Breast Cancer Screening Program in 2007. Quality evaluation was based on the Canadian Association of Radiologists accreditation criteria, which are similar to those of the American College of Radiology. The association between clinical quality and screening sensitivity was assessed by logistic regression. Adjusted sensitivity and adjusted sensitivity ratios were obtained through marginal standardization. No institutional review board approval was required. Results A proportion of 28% (206 of 730) of screening mammograms had lower overall quality for the majority of assessments. Positioning was the quality attribute that was the most frequently deficient. The 2-year screening sensitivity reached 68%. Sensitivity of screening was not statistically associated with the overall quality (ratio of 2-year sensitivity = 1.03; 95% confidence interval: 0.93-1.15) or with any quality attributes (positioning, exposure, compression, sharpness, artifacts, contrast). Results were similar for the 1-year sensitivity. Conclusions Although not all mammograms in the Quebec screening program met the optimum quality required by the Canadian Association of Radiologists or American College of Radiology accreditation, the screening mammograms produced in this population-based organized screening program reached a high enough level of quality so that the remaining variation in quality is too little to impair screening sensitivity.

      PubDate: 2018-02-24T15:50:32Z
      DOI: 10.1016/j.carj.2017.09.002
       
  • Irreversible Electroporation in Hepatopancreaticobiliary Tumours
    • Authors: A.H. Ruarus; L.G.P.H. Vroomen; R.S. Puijk; H.J. Scheffer; B.M. Zonderhuis; G. Kazemier; M.P. van den Tol; F.H. Berger; M.R. Meijerink
      Pages: 38 - 50
      Abstract: Publication date: February 2018
      Source:Canadian Association of Radiologists Journal, Volume 69, Issue 1
      Author(s): A.H. Ruarus, L.G.P.H. Vroomen, R.S. Puijk, H.J. Scheffer, B.M. Zonderhuis, G. Kazemier, M.P. van den Tol, F.H. Berger, M.R. Meijerink
      Hepatopancreaticobiliary tumours are often diagnosed at an advanced disease stage, in which encasement or invasion of local biliary or vascular structures has already occurred. Irreversible electroporation (IRE) is an image-guided tumour ablation technique that induces cell death by exposing the tumour to high-voltage electrical pulses. The cellular membrane is disrupted, while sparing the extracellular matrix of critical tubular structures. The preservation of tissue integrity makes IRE an attractive treatment option for tumours in the vicinity of vital structures such as splanchnic blood vessels and major bile ducts. This article reviews current data and discusses future trends of IRE for hepatopancreaticobiliary tumours.

      PubDate: 2018-02-24T15:50:32Z
      DOI: 10.1016/j.carj.2017.10.005
       
  • Percutaneous Liver Tumour Ablation: Image Guidance, Endpoint Assessment,
           and Quality Control
    • Authors: Robbert S. Puijk; Alette H. Ruarus; Hester J. Scheffer; Laurien G.P.H. Vroomen; Aukje A.J.M. van Tilborg; Jan J.J. de Vries; Ferco H. Berger; Petrousjka M.P. van den Tol; Martijn R. Meijerink
      Pages: 51 - 62
      Abstract: Publication date: February 2018
      Source:Canadian Association of Radiologists Journal, Volume 69, Issue 1
      Author(s): Robbert S. Puijk, Alette H. Ruarus, Hester J. Scheffer, Laurien G.P.H. Vroomen, Aukje A.J.M. van Tilborg, Jan J.J. de Vries, Ferco H. Berger, Petrousjka M.P. van den Tol, Martijn R. Meijerink
      Liver tumour ablation nowadays represents a routine treatment option for patients with primary and secondary liver tumours. Radiofrequency ablation and microwave ablation are the most widely adopted methods, although novel techniques, such as irreversible electroporation, are quickly working their way up. The percutaneous approach is rapidly gaining popularity because of its minimally invasive character, low complication rate, good efficacy rate, and repeatability. However, matched to partial hepatectomy and open ablations, the issue of ablation site recurrences remains unresolved and necessitates further improvement. For percutaneous liver tumour ablation, several real-time imaging modalities are available to improve tumour visibility, detect surrounding critical structures, guide applicators, monitor treatment effect, and, if necessary, adapt or repeat energy delivery. Known predictors for success are tumour size, location, lesion conspicuity, tumour-free margin, and operator experience. The implementation of reliable endpoints to assess treatment efficacy allows for completion-procedures, either within the same session or within a couple of weeks after the procedure. Although the effect on overall survival may be trivial, (local) progression-free survival will indisputably improve with the implementation of reliable endpoints. This article reviews the available needle navigation techniques, evaluates potential treatment endpoints, and proposes an algorithm for quality control after the procedure.

      PubDate: 2018-02-24T15:50:32Z
      DOI: 10.1016/j.carj.2017.11.001
       
  • Magnetic Resonance Imaging and Computed Tomography of Cardiac Masses and
           Pseudomasses in the Atrioventricular Groove
    • Authors: James F. Glockner
      Pages: 78 - 91
      Abstract: Publication date: February 2018
      Source:Canadian Association of Radiologists Journal, Volume 69, Issue 1
      Author(s): James F. Glockner
      The atrioventricular (AV) groove constitutes the anatomic space separating the atria and ventricles. The AV groove is often difficult to visualize at echocardiography, and suspected lesions can be further assessed with cardiac computed tomography or magnetic resonance imaging. AV groove lesions may originate from within the AV groove or extend into this space from adjacent structures. The differential diagnosis for AV groove lesions is often wide, but a precise diagnosis can sometimes be made. This pictorial essay illustrates the magnetic resonance imaging and computed tomography appearance of common and uncommon AV groove lesions, and attempts to provide a logical framework for differential diagnosis when confronted with a known or suspected lesion at cross-sectional imaging.

      PubDate: 2018-02-24T15:50:32Z
      DOI: 10.1016/j.carj.2017.12.004
       
  • What Are the Indications for Prophylactic Embolization of Renal
           Angiomyolipomas' A Review of the Current Evidence in the Literature
    • Authors: James W. Ryan; Cormac Farrelly; Tony Geoghegan
      Abstract: Publication date: Available online 24 May 2018
      Source:Canadian Association of Radiologists Journal
      Author(s): James W. Ryan, Cormac Farrelly, Tony Geoghegan
      Renal angiomyolipomas (AMLs) are benign tumours that may occur sporadically in the general population or in patients with tuberous sclerosis complex. The concern with AMLs is that of retroperitoneal hemorrhage, which can be fatal. Classically the trigger for prophylactic intervention was thought to be an AML diameter of ≥4 cm. However, this value is largely based on data from case series and heterogeneous retrospective studies. The PICO (patient, intervention, comparison, outcome) paradigm was used to systematically search the Cochrane database, TRIP database, and PubMed. The quality of evidence in the literature is poor regarding the indications for prophylactic embolization of AMLs (level 4). There are no prospective studies that adequately assess embolization vs other treatment modalities. However, using the available evidence we have produced recommendations for when intervention should be considered. We have also made recommendations regarding the direction of future research.

      PubDate: 2018-06-01T10:53:34Z
      DOI: 10.1016/j.carj.2018.01.002
       
  • Reform of a Senior Medical Student Radiology Elective Using a Needs
           Assessment
    • Authors: Natasha Larocque; Stefanie Y. Lee; Sandra Monteiro; Karen Finlay
      Abstract: Publication date: Available online 24 May 2018
      Source:Canadian Association of Radiologists Journal
      Author(s): Natasha Larocque, Stefanie Y. Lee, Sandra Monteiro, Karen Finlay


      PubDate: 2018-06-01T10:53:34Z
      DOI: 10.1016/j.carj.2018.01.005
       
  • Classified Advertising
    • Abstract: Publication date: May 2018
      Source:Canadian Association of Radiologists Journal, Volume 69, Issue 2


      PubDate: 2018-06-01T10:53:34Z
       
  • Canadian Association of Radiologists White Paper on Artificial
           Intelligence in Radiology
    • Authors: An Tang; Roger Tam; Alexandre Cadrin-Chênevert; Will Guest; Jaron Chong; Joseph Barfett; Leonid Chepelev; Robyn Cairns; J. Ross Mitchell; Mark D. Cicero; Manuel Gaudreau Poudrette; Jacob L. Jaremko; Caroline Reinhold; Benoit Gallix; Bruce Gray; Raym Geis; Timothy O'Connell; Paul Babyn; David Koff; Darren Ferguson; Sheldon Derkatch; Alexander Bilbily; Wael Shabana
      Abstract: Publication date: Available online 11 April 2018
      Source:Canadian Association of Radiologists Journal
      Author(s): An Tang, Roger Tam, Alexandre Cadrin-Chênevert, Will Guest, Jaron Chong, Joseph Barfett, Leonid Chepelev, Robyn Cairns, J. Ross Mitchell, Mark D. Cicero, Manuel Gaudreau Poudrette, Jacob L. Jaremko, Caroline Reinhold, Benoit Gallix, Bruce Gray, Raym Geis
      Artificial intelligence (AI) is rapidly moving from an experimental phase to an implementation phase in many fields, including medicine. The combination of improved availability of large datasets, increasing computing power, and advances in learning algorithms has created major performance breakthroughs in the development of AI applications. In the last 5 years, AI techniques known as deep learning have delivered rapidly improving performance in image recognition, caption generation, and speech recognition. Radiology, in particular, is a prime candidate for early adoption of these techniques. It is anticipated that the implementation of AI in radiology over the next decade will significantly improve the quality, value, and depth of radiology's contribution to patient care and population health, and will revolutionize radiologists' workflows. The Canadian Association of Radiologists (CAR) is the national voice of radiology committed to promoting the highest standards in patient-centered imaging, lifelong learning, and research. The CAR has created an AI working group with the mandate to discuss and deliberate on practice, policy, and patient care issues related to the introduction and implementation of AI in imaging. This white paper provides recommendations for the CAR derived from deliberations between members of the AI working group. This white paper on AI in radiology will inform CAR members and policymakers on key terminology, educational needs of members, research and development, partnerships, potential clinical applications, implementation, structure and governance, role of radiologists, and potential impact of AI on radiology in Canada.

      PubDate: 2018-04-15T22:52:57Z
      DOI: 10.1016/j.carj.2018.02.002
       
  • Classified Advertising
    • Abstract: Publication date: February 2018
      Source:Canadian Association of Radiologists Journal, Volume 69, Issue 1


      PubDate: 2018-02-24T15:50:32Z
       
  • Rare Prostatic Artery Origins and the Importance of Collateral
           Circulation in Prostate Artery Embolization: A Pictorial Essay
    • Authors: Shivank Bhatia; Vishal K. Sinha; Osama Abdul-Rahim; Sardis Harward; Govindarajan Narayanan
      Abstract: Publication date: Available online 10 February 2018
      Source:Canadian Association of Radiologists Journal
      Author(s): Shivank Bhatia, Vishal K. Sinha, Osama Abdul-Rahim, Sardis Harward, Govindarajan Narayanan


      PubDate: 2018-02-13T15:13:21Z
      DOI: 10.1016/j.carj.2017.11.003
       
  • Financial Impact of PEVAR Compared with Standard Endovascular Repair in
           Canadian Hospitals
    • Authors: Graham Roche-Nagle; Maureen Hazel; Dheeraj K. Rajan
      Abstract: Publication date: Available online 1 February 2018
      Source:Canadian Association of Radiologists Journal
      Author(s): Graham Roche-Nagle, Maureen Hazel, Dheeraj K. Rajan
      Objectives The percutaneous endovascular abdominal aortic repair (PEVAR) approach is a minimally invasive technique that has demonstrated clinical benefit over traditional surgical cut down associated with standard endovascular abdominal aortic aneurysm (AAA) repair (EVAR). The objective of our study was to evaluate the budget impact to a Canadian hospital of changing the technique for AAA repair from the EVAR approach to the PEVAR approach. Methods We examined the budget impact of replacing the EVAR approach with the PEVAR approach in a Canadian hospital that performs 100 endovascular AAA repairs annually. The model incorporates the costs associated with surgery, length of stay, and postoperative complications occurring within 30 days. Results The use of PEVAR in AAA repair is associated with increased access device costs when compared with the EVAR approach (CAD$1000 vs CAD$400). However, AAA repair completed with the PEVAR approach demonstrates reduced operating time (101 minutes vs 133 minutes), length of stay (2.2 days vs 3.5 days), time in the recovery room (174 minutes vs 193 minutes), and postoperative complications (6% vs 30%), which offset the increased device costs. The model establishes that switching to the PEVAR approach in a Canadian hospital performing 100 AAA repairs annually would result in a potential cost avoidance of CAD$245,120. Conclusions A change in AAA repair technique from EVAR to PEVAR can be a cost-effective solution for Canadian hospitals.

      PubDate: 2018-02-03T14:41:52Z
      DOI: 10.1016/j.carj.2017.08.003
       
  • Laparoscopic Sleeve Gastrectomy: A Radiological Guide
           to Common Postsurgical Failure
    • Authors: Fabio Garofalo; Radu Pescarus; Ronald Denis; Henri Atlas; Pierre Garneau; Michel Philie; Karl Sayegh
      Abstract: Publication date: Available online 1 February 2018
      Source:Canadian Association of Radiologists Journal
      Author(s): Fabio Garofalo, Radu Pescarus, Ronald Denis, Henri Atlas, Pierre Garneau, Michel Philie, Karl Sayegh
      Laparoscopic sleeve gastrectomy is one of the most common bariatric procedures worldwide. It has recently gained in popularity because of a low complication rate, satisfactory resolution of comorbidities, and excellent weight loss outcome. This article reviews the surgical technique, expected postsurgical imaging appearance, and imaging findings of common complications after laparoscopic sleeve gastrectomy. Understanding of the surgical technique of laparoscopic sleeve gastrectomy and of the normal postsurgical anatomy allows accurate interpretation of imaging findings in cases of insufficient weight loss, weight regain, and postsurgical complications.

      PubDate: 2018-02-03T14:41:52Z
      DOI: 10.1016/j.carj.2017.10.004
       
  • Prominent Canadian Radiologist Receives the Order of Canada
    • Authors: Robert J. Sevick
      Abstract: Publication date: Available online 19 January 2018
      Source:Canadian Association of Radiologists Journal
      Author(s): Robert J. Sevick


      PubDate: 2018-02-03T14:41:52Z
      DOI: 10.1016/j.carj.2017.11.004
       
  • Imaging Features of Common Pediatric Intracranial Tumours: A Primer for
           the Radiology Trainee
    • Authors: Daddy Mata-Mbemba; John Donnellan; Pradeep Krishnan; Manohar Shroff; Prakash Muthusami
      Abstract: Publication date: Available online 22 December 2017
      Source:Canadian Association of Radiologists Journal
      Author(s): Daddy Mata-Mbemba, John Donnellan, Pradeep Krishnan, Manohar Shroff, Prakash Muthusami


      PubDate: 2017-12-26T18:52:50Z
      DOI: 10.1016/j.carj.2017.10.006
       
  • Book Review: Accident &amp; Emergency Radiology: A Survival Guide, 3rd
           ed.
    • Authors: Ravjot Dhatt; Lila Yewchuk
      Abstract: Publication date: Available online 15 December 2017
      Source:Canadian Association of Radiologists Journal
      Author(s): Ravjot Dhatt, Lila Yewchuk


      PubDate: 2017-12-18T18:34:12Z
      DOI: 10.1016/j.carj.2017.10.002
       
  • Lower Esophageal Disorders in Childhood Evaluated by Transabdominal
           Ultrasound and Fluoroscopy: A Pictorial Essay
    • Authors: Chrysoula Koumanidou; Marina Vakaki; Argyro Mazioti; Efthymia Alexopoulou
      Abstract: Publication date: Available online 9 December 2017
      Source:Canadian Association of Radiologists Journal
      Author(s): Chrysoula Koumanidou, Marina Vakaki, Argyro Mazioti, Efthymia Alexopoulou


      PubDate: 2017-12-18T18:34:12Z
      DOI: 10.1016/j.carj.2017.10.001
       
  • Staging Computed Tomography in Patients With Noncurative Laparotomy for
           Periampullary Cancer: Does Nonstructured Reporting Adequately Communicate
           Resectability'
    • Authors: Harry R. Marshall; Jeff Hawel; Michael Meschino; Daniele Wiseman; Amol Mujoomdar; Esther Lau; Ken Leslie; Cathy Yoshy
      Abstract: Publication date: Available online 7 December 2017
      Source:Canadian Association of Radiologists Journal
      Author(s): Harry R. Marshall, Jeff Hawel, Michael Meschino, Daniele Wiseman, Amol Mujoomdar, Esther Lau, Ken Leslie, Cathy Yoshy


      PubDate: 2017-12-18T18:34:12Z
      DOI: 10.1016/j.carj.2017.10.003
       
  • Informed Consent for Radiation in Interventional Radiology Procedures
    • Authors: Rebecca Zener; Peter Johnson; Daniele Wiseman; Sachin Pandey; Amol Mujoomdar
      Abstract: Publication date: Available online 29 November 2017
      Source:Canadian Association of Radiologists Journal
      Author(s): Rebecca Zener, Peter Johnson, Daniele Wiseman, Sachin Pandey, Amol Mujoomdar
      Purpose To explore the patient perception on radiation-related cancer risk from interventional radiology (IR) procedures and whether informed radiation consent is warranted. Methods A multiple-choice survey was prospectively administered to 68 adults undergoing a body or neuro-IR procedure with ionizing radiation exposure. Subgroup analysis with chi-square or Fisher exact test was performed based on patient past IR history (P < .05). Results A total of 81% of patients wanted to be informed if there was a radiation-related 3% increased cancer risk over 5 years. Although 55% considered 3% a small risk, 28% wanted to further discuss the risks and alternate options, and 15% would have only proceeded if it were a life-saving procedure: 89%, 80%, and 67% of patients wanted to be informed with exposure risks of 1 in 100, 1 in 1000, and 1 in 10,000, respectively. Only 53% were aware they were going to be exposed to radiation, irrespective of past IR history (P = .15). Most patients believed radiation consent should include radiation-related cancer risks (85%). No past IR history was significantly associated with wanting consent to include cancer-related risk (100% vs 76%; P = .01) and deterministic risks (70% vs 41%; P = .04). A majority (69%) believed both the referring physician and the interventional radiologist were responsible for obtaining radiation consent, and 65% of patients wanted verbal consent followed by signed written consent, regardless of past IR history. Conclusions Many patients want to discuss cancer-related radiation risks with both radiologists and physicians. Informed radiation consent should be considered for procedures with high anticipated radiation doses.

      PubDate: 2017-12-18T18:34:12Z
      DOI: 10.1016/j.carj.2017.07.002
       
  • The Ottawa Hospital RADiologist Activity Reporting (RADAR) Productivity
           Metric: Effects on Radiologist Productivity
    • Authors: Cynthia Walsh; Jose Aquino; Jean Seely; Ania Kielar; Kawan Rakhra; Carole Dennie; Adnan Sheikh; Michael Kingstone; Adnan Hadziomerovic; Matthew McInnes; Wael Shabana; Chris Bright; Mario Villemaire; Frank J. Rybicki
      Abstract: Publication date: Available online 10 November 2017
      Source:Canadian Association of Radiologists Journal
      Author(s): Cynthia Walsh, Jose Aquino, Jean Seely, Ania Kielar, Kawan Rakhra, Carole Dennie, Adnan Sheikh, Michael Kingstone, Adnan Hadziomerovic, Matthew McInnes, Wael Shabana, Chris Bright, Mario Villemaire, Frank J. Rybicki


      PubDate: 2017-12-18T18:34:12Z
      DOI: 10.1016/j.carj.2017.08.005
       
  • Variable Appearances of Ductal Carcinoma In Situ Calcifications on Digital
           Mammography, Synthesized Mammography, and Tomosynthesis: A Pictorial Essay
           
    • Authors: Esther Hwang; Janet Szabo; Emily B. Sonnenblick; Laurie R. Margolies
      Abstract: Publication date: Available online 22 September 2017
      Source:Canadian Association of Radiologists Journal
      Author(s): Esther Hwang, Janet Szabo, Emily B. Sonnenblick, Laurie R. Margolies
      This pictorial essay demonstrates the variable appearances of ductal carcinoma in situ on full-field digital mammography, synthesized mammography, and digital breast tomosynthesis. The spectrum of intercase and intracase variability suggests further refinement of reconstruction algorithms for synthesized mammography may be necessary to maximize early detection of ductal carcinoma in situ.

      PubDate: 2017-09-28T13:00:11Z
      DOI: 10.1016/j.carj.2017.04.005
       
 
 
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