Luca Saba MD, Presenter: Nothing to Disclose

Roberto Sanfilippo MD, Abstract Co-Author: Nothing to Disclose

Roberto Montisci MD, Abstract Co-Author: Nothing to Disclose

Giorgio Mallarini MD, Abstract Co-Author: Nothing to Disclose

1) To understand the physiopatology of the paraumbelical vein recanalization. 2) To review the current indications for performing CT Angiography 3) To learn the CT technical parameters to be used 4) To show which post-processing techniques can be used and their indications.

1) Physiopatology of the paraumbelical vein recanalization. 2) Comparison of different imaging modalities :Sonography, CT and MR. 3) Current indications for performing hepatic CT Angiography underlining radiation exposure, cost and diagnostic efficacy. 4) CT technical parameters to be used, as well as the correct delay time, concentration and volume of contrast material. 5) Post-processing techniques and their indications, including MIP, MPR, CPR and VR.

The adaptation of the portal circulation to portal hypertension has been well documented. An important site of portosystemic venous anastomoses is around the umbilicus, clinically named the Cruveilheir-Baumgarten syndrome. In cirrothics patients the caliber of paraumbilical veins increase and CT angiography give a clear visualization of this vessel in particolar by using MIP and VR methods that precisely demonstrate vessel course, spatial relationship and collateral routes.

Saba, L, Sanfilippo, R, Montisci, R, Mallarini, G, Recanalization of Para-umbilical Vein by Using Multidetector Row CT Angiography.  Radiological Society of North America 2008 Scientific Assembly and Annual Meeting, February 18 - February 20, 2008 ,Chicago IL. http://archive.rsna.org/2008/6013508.html