高场MR在胃癌检查中的应用

Usage of High magnetic-field in examination of stomach carcinoma

目的探讨高场 MR 对胃癌的诊断及临床应用价值。方法 34例胃癌患者口服温开水800～1200ml,从膈顶至脐进行常规轴住、冠状住、斜矢状位扫描,对所得图象分析并与手术所见对照。结果1、所有图象胃腔充盈及扩张良好.可清晰显示肿瘤大小、形态、范围、与周围结构关系。2、肿瘤袁现为局限性和广泛性胃壁增厚,向腔内、外生长,形成不规则隆起肿块,呈等 T_1、稍长 T_2信号,平均厚度16 mm。3、经手术证实的16例患者 MR 所见胃壁增厚及周围情况与手术所见均一致。结论 MR 可以从轴住、冠状位、斜矢状位等多角度观察胃腔的形态及周围情况。对发现胃癌。确定有无转移及准确分期、判断预后有着无可质疑的作用。但对早期胃癌的诊断仍不尽人意。

Objective To study the clinic usage value of high magnetic-field MR in the diagnosis of stomach carcinoma.Methods In 34 cases of stomach carcinoma,patients were informed to drink water 800- 120Oral,figures of routine axis,frontal and sagittal position were scaned,from top of diaphragm to nave.The date was analysed and compared with operating rescult.Reseults 1.All image showed filling stomach and di- lataltion well,and diplaied clearly tumor size,form,range,and periodic structure relation.2.Manifest of tumor was local or extensive,wall of stomach Increased thickness,grew up to external and formed anomalo-mass, appeared equal T1,sligtly long T2 signal,the mean thick was 16mm.3.MR/view of stomach wall and periph- ery condition of 16 eases were confirmed by operating view.Conclusion The stomach cavity and periphery condition can be observedfrom axis,frontal,oblique,sagittal position etc.High magnetic-field MR is valuable to search stomach carcinoma,determine metastasis or not and staging and decide prognosis.However,it is still insufficient for diagnosis of stomach carcinoma early stage.