增强螺旋CT扫描对食管癌周围浸润及转移的诊断价值

目的：探讨增强螺旋CT扫描对食管癌的临床应用价值。材料与方法：48例食管癌患者行增强螺旋CT扫描与乎扫和术后病理对照结果：（1）一般平扫对食管周围明显浸润能够作出诊断，准确率52％．对纵隔淋巴结转移诊断准确率72％。（2）增强螺旋CT扫描可以观察病变大小、形态，范围。诊断管壁浸润、淋巴结转移、远处转移的准确率分别为70．83％、77．08％、100％。（3）可利用软件对病变食管进行多平面（MPR）重建。在不同的方位，以最佳的角度对食管肿瘤进行观察。结论：增强螺旋CT扫描和多平面重建能较全面、准确地反应肿瘤食管的病变特征，是对食管癌术前分期的重要手段之一，是诊断食管癌纵隔浸润及转移的可靠影像学方法。

The Diagnotic Value of Enhancement Spiral Computed Mograph Scanning for Surrounding Infiltratwn and Metastasis of Esophageal Cancer

Objective:To investigate the clinical diagnostic value of enhancement spiral computed tomogrnph scanning for esophageal cancer. Materials and Methods:A total of 48 cases of esophageal cancer were made the enhancement spiral computed tomograph scanning and plain scanning,and compared with pathologic appearances postoperatively.Results:(1)The general plain scanning was able to make a diagnosis for obvious infiltratnon surrounding the esophagus,and its diagnostic accurate rate was 52%,while for the metabisis of mediastinum lymph node was 72%.(2)The enhancement spiral computed tomograph scanning was able to observe the site,shape and extent of focus of infection,and its diagnostic accurate rate for tubal wall infiltration,tympy node metabasis and distant metaba- sis was 84%,84% and 100% respectively.(3)The software was able to multi-plane re-establish for focue of esophageal infection,and observe the esophageal tumor at diffevent aspect and optimal point of view.Conclusion:The enhancement spivd computed tomo- graph scanning and multi-plane re-establish can reflect more roundly and exature of esophageal tumor,and it is not only one of the most important meens for staging preoperatively of esophageal cancer,but also a reliable method inageology for the diagnosis of mediastinum infilration and metabasis of esophageal cancer.