Intraportal venous flow distribution: Evaluation with unenhanced oblique trueSSFP MR angiography perpendicular to portal vein using a selective IR tagging pulse
Shimizu A, Ito K, Tanabe M, Matsunaga N, Hayashida M
Yamaguchi University School of Medicine
We evaluated three-dimensional distribution of intraportal blood flow from SMV and SpV by means of unenhanced oblique trueSSFP MR angiography perpendicular to the portal vein using a selective IR tagging pulse. The study included 14 subjects. Whirling flow in the portal vein was observed in 57% (8/14) on the oblique MR images perpendicular to the portal vein while it was not seen on the coronal MR images. This technique has a potential to assess correlation between SpV and SMV inflow to the portal vein, and to evaluate the three-dimensional distribution of intraportal venous flow caused by the whirling flow.