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The Hepatic Artery Studies Using Doppler Sonography

The Hepatic Artery Studies Using Doppler Sonography The blood supply to the liver is shared by the portal vein and the hepatic artery, and the two vessels act in concert in various physiologic circumstances so that total liver blood flow remains constant. Hepatic arterial blood flow can be studied using Doppler sonography. Because the technique is noninvasivc, physiology can be observed in healthy persons, and examinations can be repealed in patients, as necessary. This article outlines the anatomy of the hepatic artery, the technique of the Doppler examination, and the physiologic response to a meal. After transplantation, graft function and especially the bile ducts depend on a patent hepatic artery. Signs of hepatic artery occlusion, stenosis, and collateral formation are outlined both for the transplanted and the orthotopic liver. Signs of arteriosclerosis and aneurysms of the hepatic artery are described. We also describe changes in hepatic artery blood flow, which have been measured using Doppler sonography in patients with cirrhosis, hepatorenal syndrome, and liver tumors. These observations promise to further our understanding of the pathophysiology of these diseases. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Ultrasound quarterly Wolters Kluwer Health

The Hepatic Artery Studies Using Doppler Sonography

Lafortune, Michel; Patriquin, Heidi
Ultrasound quarterly , Volume 15 (1) – Mar 1, 1999
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ISSN
0894-8771
eISSN
1536-0253

Abstract

The blood supply to the liver is shared by the portal vein and the hepatic artery, and the two vessels act in concert in various physiologic circumstances so that total liver blood flow remains constant. Hepatic arterial blood flow can be studied using Doppler sonography. Because the technique is noninvasivc, physiology can be observed in healthy persons, and examinations can be repealed in patients, as necessary. This article outlines the anatomy of the hepatic artery, the technique of the Doppler examination, and the physiologic response to a meal. After transplantation, graft function and especially the bile ducts depend on a patent hepatic artery. Signs of hepatic artery occlusion, stenosis, and collateral formation are outlined both for the transplanted and the orthotopic liver. Signs of arteriosclerosis and aneurysms of the hepatic artery are described. We also describe changes in hepatic artery blood flow, which have been measured using Doppler sonography in patients with cirrhosis, hepatorenal syndrome, and liver tumors. These observations promise to further our understanding of the pathophysiology of these diseases.

Journal

Ultrasound quarterly – Wolters Kluwer Health

Published: Mar 1, 1999

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