64-row multidetector computed tomography portal venography of gastric variceal collateral circulation

Objective: Cirrhotic portal hypertension can lead to extensive collateral circulation in the portal vein system, and the esophagogastric variceal bleeding (EVB) can easily lead to death. Computed tomography portal venography (CTPV) can display the composition of portal vein noninvasively. The purpose of this study was to investigate the diagnostic value of CTPV in collateral circulation of cirrhosis and to predict the risk of EVB. Methods: A total of 37 patients with cirrhosis in our hospital were analyzed retrospectively. All patients underwent CTPV and gastroscope to observe and classify varicose veins. The consistency of the two methods was analyzed. The diameters of patients with major tributaries of portal vein were compared between the hemorrhagic and non-hemorrhagic patients. The receiver operation characteristic (ROC) curves were used to evaluate the predictive value for EBV. Patients with varicose veins underwent endoscopic esophagogastric variceal ligation. Results: The tributaries of portal vein and the collateral circulation was showed clearly in CTPV. The esophagogastric varices was found in 30 patients, and the Kim grades I, II and III were 8, 10 and 12 respectively. The varicose was found in 28 patients under gastroscope. The CTPV and endoscopy were highly consistent in grading of esophagogastric varices (kappa 0.674). Compared with the non-hemorrhagic patients, the diameter of SMV, LGV and SV in hemorrhagic patients increased significantly. The ROC curves of predicted EBU by these diameters were 0.64, 0.76, and 0.83, respectively. There was no statistical difference between the diameter of portal vein and its tributaries before and after endoscopic variceal ligation. Conclusion: The CTPV can show the collateral vessels of portal vein in patients with cirrhosis, evaluate the degree of varicosity, and determine the risk of varicose rupture.

Download Full-text

941 Integration of electroanatomic mapping and multidetector computed tomography as a guide for atrial fibrillation catheter ablation

EP Europace ◽

10.1016/s1099-5129(05)80663-4 ◽

2005 ◽

Vol 7 ◽

pp. 226-226

Keyword(s):

Computed Tomography ◽

Atrial Fibrillation ◽

Catheter Ablation ◽

Multidetector Computed Tomography ◽

Electroanatomic Mapping

Download Full-text

Mid-aortic syndrome: computed tomography angiography depicting extensive collateral circulation in an 11-year-old patient with thoracoabdominal aortic coarctation

VASA ◽

10.1024/0301-1526/a000176 ◽

2012 ◽

Vol 41 (2) ◽

pp. 132-135 ◽

Cited By ~ 2

Author(s):

Krohn ◽

Gebauer ◽

Hübler ◽

Beck

Keyword(s):

Computed Tomography ◽

Computed Tomography Angiography ◽

Collateral Circulation ◽

Intestinal Ischemia ◽

Clinical Presentation ◽

Lower Limbs ◽

Upper Body ◽

Descending Aorta ◽

Before And After ◽

Blood Pressures

The mid-aortic syndrome is an uncommon clinical condition characterized by severe narrowing of the descending aorta, usually with involvement of its renal and visceral branches, presenting with uncontrollably elevated blood pressures of the upper body, renal and cardiac failure, intestinal ischemia, encephalopathy symptoms and claudication of the lower limbs, although clinical presentation is variable. In this article we report the case of an eleven-year-old patient with the initial diagnosis of a mid-aortic syndrome and present the computed tomography angiography pictures and reconstructions before and after surgical therapy.

Download Full-text

Assessment of vascular and biliary complications after liver transplantation: imaging with multidetector computed tomography angiography (MDCT-A), doppler us and contrast-enhanced us (CEUS)

Ultraschall in der Medizin - European Journal of Ultrasound ◽

10.1055/s-2007-988872 ◽

2007 ◽

Vol 28 (S 1) ◽

Author(s):

S Savelli ◽

S Pascoli ◽

M Atzori ◽

P Ialongo ◽

G Regine ◽

...

Keyword(s):

Computed Tomography ◽

Liver Transplantation ◽

Multidetector Computed Tomography ◽

Computed Tomography Angiography ◽

Biliary Complications ◽

Doppler Us ◽

Contrast Enhanced ◽

Multidetector Computed Tomography Angiography

Download Full-text

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

Journal of the Korean Radiological Society ◽

10.3348/jkrs.2008.58.3.277 ◽

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

Download Full-text

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

The Heart Surgery Forum ◽

10.1532/hsf98.20111075 ◽

2012 ◽

Vol 15 (1) ◽

pp. 12 ◽

Cited By ~ 1

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

Background: 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).Methods: 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.Results: 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.Conclusion: Our study showed that MDCT angiography with 16-slice systems has acceptable diagnostic performance for the evaluation of coronary artery bypass graft patency.

Download Full-text