scholarly journals 0° vs. 180° CT localiser: The effect of vertical off‐centring, phantom positioning and tube voltage on dose optimisation in multidetector computed tomography

2021 ◽  
Author(s):  
Yazan Al‐Hayek ◽  
Xiaoming Zheng ◽  
Rob Davidson ◽  
Christopher Hayre ◽  
Dana Al‐Mousa ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Multidetector Computed Tomography ◽  
Tube Voltage ◽  
Dose Optimisation

Analysis of Hepatic Capsular Enhancement Mimicking the Fitz-Hugh-Curtis Syndrome on a Multidetector Computed Tomography

2008 ◽  
Vol 58 (3) ◽  
pp. 277
Author(s):  
Ji Sang Park ◽  
Seong Jin Park ◽  
Hae Kyung Lee ◽  
Boem Ha Yi ◽  
Hyun Sook Hong ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Multidetector Computed Tomography ◽  
Fitz Hugh Curtis Syndrome

Noninvasive Evaluation of Coronary Artery Bypass Grafts with 16-Slice Multidetector Computed Tomography

2012 ◽  
Vol 15 (1) ◽  
pp. 12 ◽  
Author(s):  
Levent Sahiner ◽  
Ali Oto ◽  
Kudret Aytemir ◽  
Tuncay Hazirolan ◽  
Musturay Karcaaltincaba ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Coronary Artery ◽  
Diagnostic Accuracy ◽  
Multidetector Computed Tomography ◽  
Coronary Artery Bypass ◽  
Predictive Value ◽  
Artery Bypass ◽  
Time Interval ◽  
Mdct Angiography ◽  
Sensitivity Specificity

<p><b>Background:</b> The aim of this study was to investigate the diagnostic accuracy of 16-slice multislice, multidetector computed tomography (MDCT) angiography for the evaluation of grafts in patients with coronary artery bypass grafting (CABG).</p><p><b>Methods:</b> Fifty-eight consecutive patients with CABG who underwent both MDCT and conventional invasive coronary angiography were included. The median time interval between the 2 procedures was 10 days (range, 1-32 days). The sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of MDCT for the detection of occluded grafts were calculated. The accuracy of MDCT angiography for detecting significant stenoses in patent grafts and the evaluability of proximal and distal anastomoses were also investigated.</p><p><b>Results:</b> Optimal diagnostic images could not be obtained for only 3 (2%) of 153 grafts. Evaluation of the remaining 150 grafts revealed values for sensitivity, specificity, PPV, NPV, and diagnostic accuracy of the MDCT angiography procedure for the diagnosis of occluded grafts of 87%, 97%, 94%, 93%, and 92%, respectively. All of the proximal anastomoses were optimally visualized. In 4 (8%) of 50 patent arterial grafts, however, the distal anastomotic region could not be evaluated because of motion and surgical-clip artifacts. The accuracy of MDCT angiography for the detection of significant stenotic lesions was relatively low (the sensitivity, specificity, PPV, and NPV were 67%, 98%, 50%, and 99%, respectively). The number of significant lesions was insufficient to reach a reliable conclusion, however.</p><p><b>Conclusion:</b> Our study showed that MDCT angiography with 16-slice systems has acceptable diagnostic performance for the evaluation of coronary artery bypass graft patency.</p>

Coronary Artery Fistula Detected by 64-Slice Multidetector Computed Tomography: Case Report

2010 ◽  
Vol 13 (3) ◽  
pp. E198-E199
Author(s):  
Yi-Chang Lin ◽  
Yi-Ting Tsai ◽  
Chih-Yuan Lin ◽  
Chung-Yi Lee ◽  
Gou-Jieng Hong ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Case Report ◽  
Coronary Artery ◽  
Multidetector Computed Tomography ◽  
Coronary Artery Fistula
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