Ultrasound Evaluation of the Hepato–Portal System

Neumyer, Marsha M.

doi:10.1177/154431670502900308

Cited by 1 publication

(2 citation statements)

References 21 publications

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“…10 The essential parameters to be described as signs of PVHT include portal vein patency and diameter, direction of flow, splenic and mesenteric vein diameters with respiratory variation and direction of flow, spleen size, presence of ascites, and SPSS. 1 The greatest technical challenges in a hepatoportal DUS scan include attenuation of the Doppler beam secondary to depth and correctly determining the blood flow direction in the portosystemic vasculature, especially in collaterals. It should also be noted that DUS sensitivity is relatively low in patients with compensated cirrhosis.…”

Section: Discussionmentioning

confidence: 99%

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Adjacent Portal Vein Collateral With Retrograde Flow

Carrion

Shaver

Wedderman

et al. 2022

Journal for Vascular Ultrasound

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A prominent portal vein collateral, detected on duplex examination, confirms the diagnosis of portal vein hypertension (PVHTN). We present a patient referred to the vascular laboratory for a portal vein duplex ultrasound (DUS) examination with elastography. The most significant finding was retrograde (hepatofugal) flow in a prominent portal vein collateral located immediately adjacent to the main portal vein. This DUS examination highlights the techniques that identify spontaneous portosystemic shunts, thus confirming the presence of PVHTN.

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Section: Discussionmentioning

confidence: 99%

“…Advanced liver fibrosis and cirrhosis are typically caused by alcohol abuse or hepatitis. 1 Fibrosis is a stiffening process of the hepatocellular matrix, thereby increasing resistance to blood flow. Latent pathways recanalize becoming collaterals that allow the blood to bypass the liver and reach the systemic venous system.…”

Section: Introductionmentioning

confidence: 99%