肝血管瘤CT动脉期分型对介入治疗的临床应用影像医学与核医学专业论文.docxVIP

宁夏医科大学硕士学位论文英文摘要 宁夏医科大学硕士学位论文 英文摘要 II II The role of types of the CT arterial hepatic hemangioma:Clinical application of interventional therapyand curative effect estimate Part Ⅰ Dual-source 64-slice spiral CT enhanced scan and 3D post-processing dignose value of the hepatic haemangioma and clinical application of types of arterial phase ABSTRACT Objective Evaluation of dual-source 64-slice spiral CT 3-phase contrast-enhanced scanning and 3D post-processing of volume determination of liver hemangioma diagnosis; arterial phase enhancement the groups and types effect on the value of Clinical application.Methods 1)Retrospective analysis of clinical pathology by the 300 confirmed cases of hepatic hemangioma CT data.All cases applied for three dynamic enhanced scan and 3D-reprocessing. Determine the CT value of all cases of hepatic hemangioma in patients at different phases. 185 cases,according to the biggest diameter,we fall into 3 groups (4cmd≦10cm、d10cm、d4cm),and using 3D software to determine enhanced capacity at different phases. Results 1)300 cases，452 lesions.In plain,91.82% of the lesions show low density lesions;8.18% lesions appear high or identical density leisons. And after enhanced scan, in the arterial phase, 92.78% of lesions appear nodular or patchy edge enhancement, 14.82% leisons have no enhancement; in the portal and the extension phase, the scope of the lesions increased gradually expanded,and the last appear epual density lesions。After 3D post-processing,in different angles and different phases,tumor volume changes that different morphological changes in the overall tumor and the relation of between liver hemangioma and III III liver artery。2) The diameter is less than 4.00cm of hepatic hemangioma in the arterial phase enhancement ratios are more than 28.00% with an average of 53.68 ± 13.25%;4.0cm d≦ 10.0cm hepatic arterial vascular tumor volume ratio of the enhanced 22.25% ± 3.25%;d10.0cm hepatic arterial vascular tu