16层螺旋CT多期增强扫描对胰腺癌侵犯胰周血管的评估  

Assessment of vascular involvement in pancreatic carcinoma by multi-stages enhancement of 16-slice helical CT

作　　者：丁汉军[1] 刘伟锋[1] 田晞[2] 陈亮[1] 吴梅[1] 

机构地区：[1]广州市第一人民医院放射科,510180 [2]北京中医药大学第三附属医院放射科,100029

出　　处：《广州医药》2009年第3期1-3,共3页Guangzhou Medical Journal

基　　金：广州市医药卫生科技一般引导项目(2007-YB-211)

摘　　要：目的研究16层螺旋CT多期增强扫描评估胰腺癌侵犯胰周血管的价值。方法对20例胰腺癌患者进行16层螺旋CT多期增强扫描和三维血管重建,结合源图像比较正常胰腺组织与肿瘤组织在各项增强中的强化程度,评价胰腺癌对胰周血管的侵犯情况,与术中所见对照。结果16层螺旋CT多期增强扫描能清晰地显示胰腺癌的各种表现及胰周血管,以动脉晚期显示最佳,20例发现80支胰周血管受侵犯,表现为血管被肿瘤包绕或受压移位,管腔狭窄或闭塞,管壁浸润,CT评估肿瘤可切除准确度75%,不可切除准确度90%。结论16层螺旋CT多期增强扫描在诊断胰腺癌、术前分期以及肿瘤可切除性的评估中具有很高的应用价值。Objective To evaluate the application value of muhi-phasic contrast-enhanced scan of 16-slice spiral CT in the assessment of vascular involvement of pancreatic carcinoma. Methods Multi-phasic dynamic contrast-enhanced CT scan was performed on 20 pancreatic cancer patients, and three-dimension vessel of them were reconstructed. Combining the source images, the extent of the invaded vessels and the enhanced level of normal pancreas and cancer in different phase were evaluated and measured. The CT results were compared with operations. Results 16-slice spiral CT scanning clearly showed the CT manifestation of pancreatic carcinoma and peri-pancreatic vessels, late arterial phase was the best phase to find them. In the 20 pancreatic carcinoma patients, 80 vessels were encroached by carcinoma. The manifestation of vascular involvement in pancreatic carcinoma contained circumference, stenosis or irregularity. The accuracy rate of resectablility and unresectability evaluated by CT were respectively 75% and 90%. Conclusion The multi-phasic scanning method of 16-slice spiral CT is a comparatively excellent method to examine and diagnose in pancreas cancer, and it has higher application value in preoperative staging of pancreatic cancer and evaluating of its resectability.

关 键 词：胰腺癌 螺旋CT 诊断 血管 

分 类 号：R735.9[医药卫生—肿瘤]