2024年4月25日 · The left portal vein may be divided into transverse and umbilical portions, as delineated by the ligamentum venosum, and is mostly extrahepatic in its course. The main …

2025年1月8日 · In chronic cases, cavernous transformation of the portal vein may be seen, with numerous periportal veins replacing the normal single channel of the portal vein. Ultrasound. …

2024年7月8日 · Portal venous flow is normally towards the liver (hepatopetal), with the normal main portal vein peak systolic velocities usually measuring 20-40 cm/s 1,3. The mean flow …

2024年8月28日 · Ultrasound is able to identify a normal portal vein in almost all cases when present (97%) 3, and therefore is a good first-order examination. Doppler examination can be …

2023年11月25日 · Diagnosis can be made when the portal vein exceeds 20 mm in diameter. Ultrasound. Color Doppler ultrasound is the most helpful diagnostic tool. Further workup may …

2024年12月2日 · biphasic or reverse flow in the portal vein (late stage): pathognomonic 11. portal-systemic collateral pathways: varices (e.g. paraumbilical, splenorenal) are considered …

2024年8月21日 · Ultrasound. It is usually detected in the 2 nd to 3 rd trimester. Assessment is usually made in the axial plane and color Doppler is often required. An intrahepatic persistent …

2024年10月25日 · Portal venography also characterizes the dynamic flow distribution between the splenoportal axis, and portosystemic or portoazygos shunts. After a successful TIPS, there …

2022年10月25日 · Hepatofugal or non-forward portal flow (NFPF) is an abnormal flow pattern in which the portal venous flow is from the periphery of the liver towards the porta hepatis and …

2021年7月1日 · The left gastric vein (also known as the coronary vein) drains both the anterior and posterior gastric walls. It forms a loop with the right gastric vein at the lesser curvature of …