Cross Sectional Study on Patters of Variation in Hepatic Vasculature inpatients Enrolled to Radiology Department and Evaluated by Computed Tomography at Tikur Anbessa Specialized Hospital ,Addis Abeba University, Addis Abeba Ethiopia.
| dc.contributor.advisor | Kebede, Tesfaye(MD, Associate Professor of Radiology) | |
| dc.contributor.author | Tesfaye, Kaleab | |
| dc.date.accessioned | 2020-02-10T12:46:09Z | |
| dc.date.accessioned | 2023-11-05T09:31:59Z | |
| dc.date.available | 2020-02-10T12:46:09Z | |
| dc.date.available | 2023-11-05T09:31:59Z | |
| dc.date.issued | 2019-07 | |
| dc.description.abstract | Background Hepatic Artery, on the basis of intrahepatic branching patterns of blood supply and biliary drainage, liver creates 8 segmentations: anterior and posterior segments in right lobe, whereas medial and lateral segments in left lobe. Each segment is again subdivided into upper and lower segments 1 . The usual arterial supply of liver is common hepatic artery arising from celiac trunk, accounting for 25-75% of cases. The patterns of arterial supply are not constant. In variant patterns, it receives arterial flow through branches coming from superior mesenteric artery, left gastric artery, or, rarely from other arterial trunks 2 . Portal vein, the normal anatomy of portal vein is defined as a division of main portal vein into two branches left portal vein and right portal vein. Left portal vein supplying segments I, II, III and IV. The right portal vein is dividing secondarily into two branches- right medial (anterior) sectoral division supplying segments V & VIII and right lateral (posterior) sectoral division supplying segments VI & VII. 1 Variations are frequent and they account for 20-35% of the population. Objective: This study is designed to evaluate the patterns of variation in hepatic vasculature on patients presented to radiology department and had computed tomography of the abdomen at tikuranbesa specialized hospital. Method:Hospital based retrospectivecross-sectional study was conducted on 878 patients who underwent an abdominal CT at TASH andpatterns of variation in hepatic vasculature was evaluated in a period of 3 months from June 2018 to September.2018. Data was collected by evaluating abdominal CT scans from PACS (Medweb). The data was checked for clarity and completeness. Computerized data analysis was conducted by using SPSS version 20.0 software Result: Total of 878 (N = 878) patients were included in the study out of which 537 patients had a post contrast CT and 341 patients had a triphasic scan Hepatic arterial anatomy was evaluated in those patients who had a triphasic abdominal CT, out of which 299 (87.7%) had a normal classic anatomy and 42(13.3%) cases had a variant anatomy. VII Normal Portal vein anatomy was seen in 717 patients (79.94%) out of 878 patients. Trifurcation (Type I) variation was seen in 77 (8.8%) of the cases. Right posterior vein as first branch of MPV (Type II) variation was seen in 66 (7.5%) of the cases. Type III variation seen in 14 (1.6%) cases, type IV seen in 1 (0.1%) case and 3 cases had other types of variation which are not included in the variant, in which 2 patients had an absent Left Portal vein and 1 case had a division of the main portal vein into segment VI, segment VII, right anterior portal vein, and left portal vein as a “quadfurcation”. | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/123456789/20596 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | Addis Abeba University | en_US |
| dc.subject | Hepatic Vasculature | en_US |
| dc.title | Cross Sectional Study on Patters of Variation in Hepatic Vasculature inpatients Enrolled to Radiology Department and Evaluated by Computed Tomography at Tikur Anbessa Specialized Hospital ,Addis Abeba University, Addis Abeba Ethiopia. | en_US |
| dc.type | Thesis | en_US |