نتایج جستجو برای: two portal
تعداد نتایج: 2463658 فیلتر نتایج به سال:
OBJECTIVE To describe the appearance of transient hepatic attenuation differences (THADs) of extrahepatic origin. MATERIALS AND METHODS Five cases of THADs produced by compression of the extrahepatic portal vein at its confluence with the splenic vein were identified prospectively over a four-month period. Two additional cases of peripheral THADs resulting from main portal vein thrombosis wer...
Extrahepatic portal vein obstruction has been reported to be associated with tumors of liver, bile ducts and pancreas. We report two cases, one with gastric leiomyosarcoma and another with Non Hodgkin's lymphoma, complicated by portal vein block and presenting with gastric variceal bleeding. Portal vein block in both cases was due to direct vascular infiltration. Development of portal hypertens...
Introduction: Organizational portals play a key role in increasing the efficiency of NGOs. Considering that education as one of the important factors can affect people's conception of usefulness, accepting and using portal. Therefore, this study aimed to assess the effect of education on the adoption of a portal in health organizations based on the technology acceptance model. Methods: The p...
abstractbackground: delivering the radiation dose to the target volume and minimizing the dose to normal tissues are the main objectives in radiotherapy. the aim of our study is to enhance the contrast of the portal image to increase the accuracy of delineation of the organs in the irradiation field. methods: the software was written based on local enhancement of the pixel values in image mat...
aim : assessment of short term changes in portal blood flow and long term changes in liver functions in cirrhotic patients who chose to fast during the month of ramadan in summer. background : during ramadan, healthy muslims obligated to fast from predawn to sunset. patients and methods : forty cirrhotic patients intended to fast during the month of ramadan in the year 2014, were examined by co...
This study investigates the status of portal implementation in the academic world. A two-stage cluster analysis was used to divide the sample colleges and universities into three groups (Internal Focus Implementers, External Focus Implementers and Starters) based on the portal features implemented by each school. The differences among the three groups were assessed based on the type of school a...
Background & Aim: Web-based technologies provide new opportunities for education, research and professional development of nursing. Nurses have few opportunities to use the Internet due to managers&apos obligations not to use the Internet in work hours, and their traditional attitudes to nursing practice. Establishment of a national nursing portal is a useful way to resolve some of these proble...
background : the portal system and azygos vein are the main drainage systems during portal hypertension. this study aims to compare the diameter of these veins by endoscopic ultrasonography (eus) inpatients with and without chronic liver disease (cld). materials and methods : during one year, patients with cld enrolled as the study group. patients who underwent eus for other reasons during the ...
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