نتایج جستجو برای: portal imaging
تعداد نتایج: 487433 فیلتر نتایج به سال:
PURPOSE Several MRA techniques have been implemented for non-invasive imaging of the portal vein. A time-spatial labeling inversion pulse (time-SLIP) technique was reported using a free hand spatial selection and tag-on and tag-off alternating scan and MIP processing to only depict the marked blood while canceling the background signals at any specified inversion time [1]. The purpose of this s...
A 55-year-old male was admitted in mid-April 2011 with a fever of >39°C and pain in the lower right abdomen. A medical examination revealed sepsis originating from colonic diverticulitis. Abdominal B-mode ultrasonography (US) performed on admission detected thrombi in the superior mesenteric vein and in the right branch of the hepatic portal vein. Arrival time parametric imaging (At-PI) using S...
Cell migration or trafficking is an integral aspect of cancer metastasis and is a target for development of novel antimetastatic therapy. Tumor cell trafficking has been a poorly understood phenomenon due to the inability to visualize the process. In this study, we visualized the trafficking of metastatic cells targeting the liver via the portal vein using green fluorescent protein (GFP)-expres...
AIMS AND BACKGROUND The aim of this report was to investigate the feasibility in terms of treatment time prolongation of an on-line no-action level correction protocol, based on daily electronic portal image verification. METHODS AND STUDY DESIGN The occupation of a linear accelerator (LINAC) delivering 3-D conformal treatments was monitored for two weeks (from Monday to Friday, 10 working da...
Cases of liver abscess complicated by portal vein thrombosis are relatively rare. We report a case of liver abscess caused by α-hemolytic streptococci and complicated by portal vein thrombosis. A 51-year-old male presented with fever and right hypochondralgia. He had watery diarrhoea and bloody stool for over 1 month before presentation. Laboratory tests showed elevated hepatobiliary enzymes, i...
PURPOSE: Hepatobiliary contrast agents add an additional form of image contrast to hepatic magnetic resonance (MR) imaging, allowing differentiation of tumors which have functional hepatic and biliary components from those without. Gd-EOB-DTPA has sufficiently significant elimination via the hepatobiliary pathway to make it a feasible contrast agent in the time allotted to a typical clinical ab...
This case report concerns a 40-year-old male who had previously been treated for an esophageal varix rupture, at the age of 30 years. The medical examination at that time revealed occlusion of the inferior vena cava in the proximity of the liver, leading to the diagnosis of the patient with Budd-Chiari syndrome. The progress of the patient was therefore monitored in an outpatient clinic. The pa...
The Electronic Portal Imaging Device (EPID) provides localization quality images and computer-aided analysis, which should in principal, replace portal film imaging. Modern EPIDs deliver superior image quality and an array of analysis tools that improve clinical decision making. It has been demonstrated that the EPID can be a powerful tool in the reduction of treatment setup errors and the qual...
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