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(Radiographics. 2002;22:1053-1061.)
© RSNA, 2002

EDUCATION EXHIBIT

Three-dimensional Multi–Detector Row CT Portal Venography in the Evaluation of Portosystemic Collateral Vessels in Liver Cirrhosis1

Heoung Keun Kang, MD, Yong Yeon Jeong, MD, Jun Ho Choi, MD, Song Choi, MD, Tae Woong Chung, MD, Jeong Jin Seo, MD, Jae Kyu Kim, MD, Woong Yoon, MD and Jin Gyoon Park, MD

1 From the Department of Diagnostic Radiology, Chonnam National University Medical School, 8 Hack-Dong, Dong-Ku, Gwang-Ju 501-757, Korea. Presented as an education exhibit at the 2001 RSNA scientific assembly. Received February 25, 2002; revision requested March 18 and received April 22; accepted April 22. Address correspondence to Y.Y.J. (e-mail: yjeong@chonnam.ac.kr).

Multi–detector row computed tomography (CT) offers distinct advantages over traditional spiral CT. Multi–detector row CT scanners are faster and allow thinner collimation than single–detector row spiral CT scanners. The use of multi–detector row CT combined with postprocessing of the imaging data with a variety of three-dimensional reformatting techniques (eg, maximum intensity projection, shaded surface display, volume rendering) allows creation of vascular maps whose quality equals or exceeds that of maps created at classic angiography for many applications. Three-dimensional multi–detector row CT portal venography can help determine the extent and location of portosystemic collateral vessels (eg, left gastric vein, short gastric vein, esophageal and paraesophageal varices, splenorenal and gastrorenal shunts, paraumbilical and abdominal wall veins) in patients with liver cirrhosis and is probably the optimal imaging technique in this setting.

© RSNA, 2002

Index Terms: Hypertension, portal, 957.711 • Liver, cirrhosis, 761.794 • Portal vein, CT, 957.1291, 957.12917 • Shunts, portosystemic, 957.134, 957.453




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