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目的 评价术前应用磁共振成像 (MRI)对胃癌原发灶及转移灶的诊断价值。方法 应用超导型磁共振成像仪单次屏气快速扫描序列对 36例胃癌患者进行术前检查 ,并经手术及病理学检查证实。结果 MRI对胃癌病灶的定性定位诊断率达 10 0 % ,淋巴结转移显示率为 83% (2 5 / 30 ) ,腹部脏器转移或侵犯诊断正确率为 73% (35 / 48)。结论 胃癌在MRI上有特征性表现 ,该方法能较好地显示胃癌及其扩散 ,甚至转移淋巴结情况 ,对进展期胃癌的临床诊断有较高的应用价值。
Objective To evaluate the value of preoperative magnetic resonance imaging (MRI) in the diagnosis of primary gastric cancer and metastases. Methods A preoperative examination of 36 patients with gastric cancer was performed using a single breath-hold rapid scanning sequence of a superconducting magnetic resonance imaging system. The results were confirmed by surgery and pathological examination. Results The diagnostic accuracy of MRI for gastric cancer lesions was 100%, the lymph node metastasis was 83% (25/30), and the accuracy of abdominal organ metastasis or invasion was 73% (35/48). Conclusions Gastric cancer has characteristic features on MRI. This method can better show gastric cancer and its spread, and even metastatic lymph nodes. It has a high application value for clinical diagnosis of advanced gastric cancer.