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.
Portal venous flow | Radiology Reference Article - Radiopaedia.org
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 velocity of portal vein in adults is 19.3 cm/s 6 .
Portal Vein Doppler - Sonographic Tendencies
2021年10月1日 · Main Portal Vein and Bifurcation. When the portal vein enters the liver it bifurcates into right and left main branches. The right portal vein bifurcates into an anterior and posterior branch which feed segments 5, 6, 7 and 8 respectively, whereas the left branch feeds segments 2, 3 and 4.
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 …
Typical and atypical portal vein Doppler ultrasound spectrums: A ...
Typical and atypical portal vein Doppler ultrasound spectrums: A pictorial guide. Congress: ECR 2019. Poster Number: C-0959. Type: Educational Exhibit. Keywords: Vascular, Veins / Vena cava, Ultrasound, Ultrasound-Colour Doppler, Ultrasound-Spectral Doppler, Technical aspects, Education and training. Authors:
The role of ultrasound in portal hypertension | Radiology Key
2023年3月12日 · The PV normally exhibits a monophasic, low-velocity Doppler signal with slight respiratory variation. The normal range of portal flow velocity is large but is usually between 20 and 40 cm/s (time averaged peak velocity).
Doppler US of the Liver Made Simple | RadioGraphics
Doppler ultrasonography (US) is usually the first-line modality for evaluating flow in native liver vessels and transjugular intrahepatic portosystemic shunts (TIPS). Waveforms, which represent flow in each of the major vessels and in TIPS, have been well described.
US of the Portal Vein | RadioGraphics - RSNA Publications Online
2024年4月4日 · Evaluation of the portal vein requires use of gray-scale, color, and spectral Doppler US to document velocity and flow direction, detect features indicative of portal hypertension or bland and tumor thrombus, and monitor transjugular intrahepatic portosystemic shunt functionality.
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.
All about portal vein: a pictorial display to anatomy, variants and ...
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 …
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