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Journal Cover Acta Radiologica Open
  [2 followers]  Follow
  This is an Open Access Journal Open Access journal
   ISSN (Online) 2058-4601
   Published by Sage Publications Homepage  [842 journals]
  • Usefulness of T2*-weighted MRI in the detection of adnexal torsion

    • Authors: Kawai, N; Kato, H, Kanematsu, M, Kawaguchi, S, Kojima, T, Furui, T, Morishige, K.-i, Matsuo, M.
      Pages: 2058460116 - 2058460116
      Abstract: Background The usefulness of T2*-weighted (T2*W) imaging for the detection of adnexal torsion has yet to be determined. Purpose To assess the usefulness of T2*W imaging for detecting and differentiating adnexal torsion. Material and Methods Eight patients with eight ovaries with torsion and 44 patients with 72 ovaries without torsion were included in this study. All patients underwent 1.5-T magnetic resonance imaging (MRI) including T2*W images. The frequency and distribution of hypointensity on T2*W images were compared between ovaries with torsion and ovaries without torsion. Results Hypointensity on T2*W images was significantly more frequent in ovaries with torsion than in ovaries without torsion (75% vs. 36%; P < 0.05). Among patients with hypointensity on T2*W images, the frequency of diffuse hypointensity was significantly higher in ovaries with torsion than in ovaries without torsion (83% vs. 0%; P < 0.01); whereas the frequency of focal hypointensity was significantly lower in ovaries with torsion than in ovaries without torsion (17% vs. 100%; P < 0.01). Conclusion The presence and distribution of hypointensity on T2*W images may play a supplementary role in the detection of adnexal torsion.
      PubDate: 2016-06-23T07:29:52-07:00
      DOI: 10.1177/2058460116645375
      Issue No: Vol. 5, No. 6 (2016)
  • Prevalence of left atrial abnormalities in atrial fibrillation versus
           normal sinus patients

    • Authors: Terpenning, S; Ketai, L. H, Teague, S. D, Rissing, S. M.
      Pages: 2058460116 - 2058460116
      Abstract: Background Atrial fibrillation (AF) may be the cause or sequela of left atrial abnormalities and variants. Purpose To determine the prevalence of left atrial (LA) abnormalities in AF patients compared to normal sinus rhythm (NSR) patients. Material and Methods We retrospectively reviewed 281 cardiac CT examinations from 2010 to 2012, excluding patients with prior pulmonary vein ablation, known coronary artery disease, prior coronary stent placement, or coronary artery bypass grafts. The first group consisted of 159 AF patients undergoing cardiac CT prior to pulmonary vein ablation and the second group consisted of 122 NSR patients evaluated with coronary CT angiography. Demographic data were collected. LA abnormalities were analyzed. Left atrial diameter was measured on an axial view. Results A total of 281 patients were included. The male gender has significantly higher prevalence of AF than female gender, P value
      PubDate: 2016-06-08T03:32:44-07:00
      DOI: 10.1177/2058460116651899
      Issue No: Vol. 5, No. 6 (2016)
  • Three cases of mediastinal pancreatic pseudocysts

    • Authors: Matsusue, E; Fujihara, Y, Maeda, K, Okamoto, M, Yanagitani, A, Tanaka, K, Nakamura, K, Ogawa, T.
      Pages: 2058460116 - 2058460116
      Abstract: A rare complication of acute or chronic pancreatitis is the formation of a mediastinal pancreatic pseudocyst (MPP), which is caused by tracking of pancreatic fluids through anatomical openings of the diaphragm into the mediastinum. Herein, we report the imaging characteristics of three cases of this condition. Our results revealed three features in common: (i) the connection between the mediastinum and the pancreatic cystic lesion; (ii) the presence of pleural effusions; and (iii) imaging findings consistent with chronic pancreatitis, such as pancreatic atrophy and calcifications and dilatation and/or stricture of main pancreatic duct (MPD). Serial diameter changes of the MPD and of the adjacent pseudocysts were necessary for the determination of the therapeutic strategy used in each case.
      PubDate: 2016-06-07T03:51:50-07:00
      DOI: 10.1177/2058460116647213
      Issue No: Vol. 5, No. 6 (2016)
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