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Evaluation of Portal System Flow with liver 4D-Flow and APTw MRI in Response to a Meal Challenge
Lihua Chen1, Ailian Liu1, Jiazheng Wang2, Yishi Wang2, and Qingwei Song1
1The First Affiliated Hospital of Dalian Medical University, Dalian, China, 2Philips Healthcare, Beijing, China
4D-flow MRI could measure the increase of flow velocity and volume in both PV and SMV and a decrease in SV after the meal uptake in healthy volunteers non-invasively. The APT value of liver parenchyma was found with no change after a meal.
Figure 1 A 22-year-old female volunteer, reconstructed image (A), flow (B), and direction (C) of portal system were shown. Red lines representthe SV and yellow lines the SMV contributions to the total portal blood flow (D), respectively.
Table 1Comparison of flow volume measurements between fasting and meal