摘要
目的：评价Gd-DTPA增强磁共振成像在诊断肝细胞肝癌中的价值。资料与方法：经手术病理或临床证实的肝细胞肝癌53例行磁共报检查，成像序列为：自旋回波T1WI，脂肪抑制PD、T2WI及Gd-DTPA增强T1WI（T1WI＋C）。总结各序列图像对病体、子灶、假包膜、肿瘤镶嵌样结构、门静脉瘤栓等结构显示率。结果：T1WI、T2WI、T1WI＋C对病体的显示率分别为66％、100％、66％，显示的子灶数分别为28、52、22个，假包膜的显示率为39％、43％、75％，对肿瘤镶嵌样结构的显示率分别为20％、62％、73％，对门静脉瘤栓的显示率各为25％、100％、31％。结论：Gd-DTPA增强MRI对肝细胞肝癌的定性诊断有一定的帮助，而在确定主瘤、子灶、与门脉瘤栓存在与否方面不如T2WI。Gd-DIPA增强在肝细胞肝癌诊断中应选择使用而不必作为常规序多列。
To assess the value of Gd-DIPA enhanced MRI in the diagnosis of Hepatocelular carcinoma (HCC). Materials and methods :53 patients with HCC proved by pathological or clinical methods unders-went MR imaging at 1.5T with SE technique. SE T1WI PD T2WI and Gd-DTPA emjamced SE T1WI (T1WI + C) were performed. Frequencies of demonstrating main tumor lesions, doughter nodules, psuedo capsule mosaic structure and tumor thrombosis in portal vein of HCC were analysed. Results:66%,100%,66% of main tumor lesions . 28, 52, 22 daughter nodules. 39%,43%, 75% of psuedo-capsule.20% ,62%,73% of mosaic structure and 25%, 100%,31% of portal vein tumos thrombosis were demon-strated by T1WI, T2WI and T1WI + C sequence respectively Conclusion: Gd- DTPA enhanced MRI was su-perior than T2WI in characterization of HCC, but less valuable in the demonstration to main tumor lesion,daughter modules and portal vein tumor thrombosis. It should be performed selectively in diagnosis of HCC rather than as a routine procedure.
出处
《放射学实践》
1997年第4期152-156,共5页
Radiologic Practice
