During the last 25 years, there have been important developments in visualising the portal vein, in examining its contents, and in measuring the pressure of blood flowing within it. Radiologists have set the scene and now is the time of the scanner. These technical advances have been applied to the diagnosis and treatment of patients with portal hypertension, and many ingenious surgical techniq...

conclusion the involved liver with hht typically shows vascular shunting and biliary diseases. also, arteriovenous shunts may be vulnerable to biliary diseases. results (i) three types of shunting were found in the livers, including arteriovenous (hepatic artery to hepatic vein) in 6 cases, arterioportal (hepatic artery to portal vein) in 2 cases, and portal venous (portal vein to hepatic vein)...

1. In the liver of portal cirrhosis there is a far freer communication between the arterial and portal currents than in the normal liver. 2. Factors contributing to the increased portal pressure in portal cirrhosis are (1) the direct communication of the arterial pressure to the portal vessels through dilated capillaries, (2) the larger volume-flow of the hepatic artery in proportion to the por...

abstract background: for treatment verification in radiation therapy. several physical characteristics of scanningliquid filled ionization chamber epid (slic-epid) including: extra build-up layer,reproducibility and uniformity, and noise level were investigated.electronic portal imaging devices (epids) have found an outstanding positionmaterials and methods: equilibrium, 1-30 mm white water mat...

background: electronic portal imaging devices (epids) play an important role in radiation therapy portal imaging, geometric and dosimetric verifications. a successful utilization of epids for imaging and dosimetric purposes requires a reliable quality control process routine to be carried out regularly. in this study, two in-house phantoms were developed and analyzed for implementation in a qua...

BACKGROUND Portal vein stenosis develops due to different causes including postoperative inflammation and oncological processes. However, limited effective therapy is available for portal vein stenosis. The objectives of this study were to evaluate the efficacy of a portal vein stent for portal vein stenosis after hepatobiliary pancreatic surgery and to determine the factors associated with ste...

To determine the relationship of splanchnic blood flow and portal venous resistance to elevated portal pressure, in situ perfusion of the splanchnic circuit was carried out in 12 freshly killed dogs at varying perfusion rates and degrees of acute and chronic portal vein constriction. In six normal dogs before being killed, portal pressure averaged 8-8 +/- 1-2 mmHg and portal flow 658 +/- 81 ml/...

Background Understanding and addressing the needs of frail persons is an emerging health priority for Nova Scotia and internationally. Primary healthcare (PHC) providers regularly encounter frail persons in their daily clinical work. However, routine identification and measurement of frailty is not standard practice and, in general, there is a lack of awareness about how to identify and respond...

I WILL present a personal approach to the problem of portal hypertension, without attempting to cover the subject exhaustively, but emphasizing what I feel to be the important points for consideration in relation to the management of patients. Causes of portal hypertension The most important cause of portal hyperten-sion is chronic liver disease which usually implies cirrhosis of the liver. The...

Non cirrhotic portal fibrosis (NCPF) is a syndrome of obscure etiology, characterized by obliterative portal venopathy leading to portal hypertension, massive splenomegaly and well tolerated episodes of variceal bleeding in young adults, having near normal hepatic function. The lesion in NCPF is generally vascular, present in portal vein, it’s branches or in the presinusoidal area of liver. NCP...