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作者选20例胃癌术后新鲜标本,除5例在胃大弯侧切开外,余15例为完整标本,胃的两端行连续性缝合关闭之,腔内充满盐水。20例中,10例腺癌,7例Sighet细胞癌,3例混合性癌。肿瘤直径2～15cm(平均7.3cm)。扫描采用1.0T MR扫描机,头线圈,首先对标本进行GE序列T_1WI(TR650ms/TE15ms/75°/层厚8mm)检查找出肿瘤,然后在肿瘤区行3～4mm厚的SE序列T_1WI(TR450ms/TE15ms)行长、短轴向扫描,视野12～20cm,矩阵
The authors selected 20 fresh specimens of gastric cancer after surgery. Except for 5 cases of incision on the side of large curvature, the remaining 15 cases were intact specimens. Both ends of the stomach were closed by continuous suture, and the cavity was filled with saline. Of the 20 cases, 10 were adenocarcinomas, 7 were Sighet cell carcinomas, and 3 were mixed carcinomas. The tumor diameter is 2-15cm (average 7.3cm). Using a 1.0T MR scanner and a head coil, the specimens were first examined for GE lesions on the GE sequence T_1WI (TR650ms/TE15ms/75°/thickness of 8mm), and a 3 to 4mm thick SE sequence T_1WI (TR450ms) was used in the tumor area. /TE15ms) Line length, short axis scan, field of view 12 to 20cm, matrix