肝转移瘤多层螺旋CT影像学特征分析-影像医学与核医学专业论文.docxVIP

宁夏医科大学硕士研究生学位论文中文摘要 宁夏医科大学硕士研究生学位论文 中文摘要 - -Ⅱ- 关键词 肝转移瘤，CT，原发肿瘤，多层螺旋CT表现 宁夏医科大学硕士专业学位论文英文摘要 宁夏医科大学硕士专业学位论文 英文摘要 - -Ⅲ- The analysis of imaging characteristics of hepatic metastases in multi-slice spiral CT ABSTRACT Objective To study the imaging characteristics of multi-slice spiral CT in Hepatic Metastases. Methods 187 patients with primary tumors were diagnosed by operation or pathology （118 men,69 women; age range , 28~81,mean 52.4 years）. Including gastric cancer 47 cases, colorectal cancer 43 cases, pancreatic carcinoma 16 cases, lung cancer 18 cases, breast cancer 15 cases, ovarian cancer 36 cases and gallbladder carcinoma 12 cases. Plain scan, arterial phase, portal venous phase and delayed phase were performed. The analysis including position, distribution characteristics of the metastases and the enhanced performance in every phase. All the cases have been double-blind read by two physicians. SPSS19.0 and chi-square(P0.05) was used to make the significant analysis. Results ①Focus were found in four phases, 879 in plain scan, 1346 in arterial phase, 1564 in portal venous phase and 1107 in liver equilibrium phase. Right lobe was 1142 (73%), left lobe 422 gold (27%).②53 cases with metastases carcinoma migrate to hepatic subcapsular , including 34 ovarian cancer and 19 cancer originate from other organs (P0.05) .③There are 43 cases from mesenteric vein,37 cases show right lobe advantage ,and there are 47 cases from spleen vein, 21 cases show right lobe advantage(P0.05). ④Gallbladder carcinoma metastasis usually occur in the liver VIII, V and IV adjacent to the gallbladder bed. ⑤The rate of calcification is about 8.6%, including tumors from colon, gastric, ovarian and breast. ⑥The rate of bulls-eye in portal vein tumor is higher than artery of tumor. ⑦The four enhanced phases of live metastasis can be divided into two types : the gastric, breast and gallbladder showed a TDC type of gradual rise –gradual fall, colon, lung, 宁夏医科大学硕士研究生学位论文英文摘要 宁夏医科大学硕士研究生学位论文 英文摘要