2024年4月25日 · The portal vein (PV) (sometimes referred to as the main or hepatic portal vein) is the main vessel in the portal venous system and drains blood from the gastrointestinal tract and spleen to the liver.

(a) B-mode ultrasound shows partial echogenic material within the left portal vein lumen (yellow line) with filling defect on colour Doppler (b) (yellow line & yellow arrow). (Note: colour scale should be reduced for better depiction of colour flow looking at background of liver cirrhosis with possible portal hypertension).

2016年3月5日 · This chapter reviews the normal hemodynamics of the liver and the sonographic assessment of portal hypertension, portal vein obstruction, hepatic vein obstruction, and intrahepatic portosystemic shunts.

2021年10月1日 · The Portal Vein is made up three main vessels the Superior and Inferior Mesenteric veins and the Splenic vein. When these three vessels converge they become the Main Portal Vein which enters the Liver via the porta hepatis along with the hepatic artery and common bile duct (cbd exits the liver), aka the Portal Triad.

2017年2月16日 · The portal vein arises from the union of the superior mesenteric and splenic veins posterior to the neck of the pancreas. The portal vein then ascends toward the liver as the most posterior structure of the portal triad. The portal vein branches into segments supplying the left and right lobes of the liver at the hilum.

2023年8月13日 · Understanding how an abnormal hepatic artery, hepatic vein, or portal vein manifests on Doppler sonography can help identify or confirm liver diseases. Doppler liver ultrasonography constitutes an effective and non-invasive means …

2016年9月23日 · Ultrasound is also an excellent means of evaluating patients for portal vein (PV) thrombosis and Budd-Chiari syndrome (BCS), which may precipitate acute deterioration of liver function in patients with cirrhosis and HCC.

2024年11月23日 · Imaging the portal vein is important for diagnosing and managing a wide range of conditions, from portal hypertension to thrombosis and tumors. Imaging techniques, such as Doppler ultrasound, CT, MRI, and angiography, offer …

Ultrasound, computed tomography (CT), and magnetic resonance imaging (MRI) are the imaging methods used in order to facilitate the diagnosis and classification of portal vein thrombosis, with rates of sensitivity and specificity ranging from 80% to 100% (4,5).

2019年3月21日 · The portal vein (PV) is the main vessel of the portal venous system (PVS), which drains the blood from the gastrointestinal tract, gallbladder, pancreas, and spleen to the liver. There are several variants affecting the PV, and quite a …