Portal vein | Radiology Reference Article - Radiopaedia.org
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.
Typical and atypical portal vein Doppler ultrasound spectrums: A ...
Normal portal vein waveform. Sonographically, PV has a thick and echogenic wall. It demonstrates antegrade flow direction (hepatopetal flow). The normal PV waveform is described as phasic, with minimal or gentle undulation depending on the cardiac cycle and respiration [3]. The flow velocity ranges from 16 to 40cm/sec [3-4] (Fig. 3).
Portal Vein Doppler - Sonographic Tendencies
2021年10月1日 · Approximately 25% of cirrhotic patients can develop portal vein thrombosis, Oftentimes due to portal hypertension and sluggish flow through the fibrotic liver. Stagnant blood flow is more prone to coagulation.
Portal Vein: Anatomy, Location & Function - Cleveland Clinic
Your portal vein carries blood from organs in your abdomen (belly) to your liver. This blood must pass through your liver for filtering and processing before it returns to your body’s general circulation. So, your portal vein plays a vital role in draining many smaller veins (tributaries) in your belly and sending the blood into your liver.
All about portal vein: a pictorial display to anatomy, variants …
In this pictorial review, we assess the embryological development and normal anatomy of the PVS, displaying selected cases consisting of normal variants, congenital anomalies, and a large and heterogeneous group of acquired conditions that may affect the PV.
Ultrasound Assessment of the Hepatic Vasculature - Radiology …
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.
Hepatofugal Portal Venous Flow: From Normal to Pathological
When the obstruction is found in a single location, Doppler ultrasonography shows segmental portal vein inversion whereas when the obstruction is diffuse, the ultrasound shows signs of portal hypertension with a diffuse portal flow inversion (Figure 4c).
Pulsatile portal venous flow | Radiology Reference Article ...
2024年5月11日 · A pulsatile portal venous flow pattern is an abnormal form of portal venous flow and can result from both physiological and pathological causes. In well subjects, mild to marked pulsatility has been described.
Doppler Liver Assessment, Protocols, and Interpretation of …
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 …
The Portal Vein: A Comprehensive Review | RadioGraphics
2023年10月19日 · The authors examine imaging appearances of the portal vein, first by outlining the classic and variant anatomy and then by describing each of the disorders that impact portal vein function.