多层螺旋CT三期扫描在胰腺癌诊断中的价值  

Multi-detector Row Helical CT of the Pancreas: Effect of Contra st-enhanced MultiphasicImage in the Diagnosis of Pancreatic Adenocarcinoma

作　　者：王冬青[1] 戴俏武[2] 夏成芳[3] 殷瑞根[1] 赵亮[1] 彭卫斌[1] 

机构地区：[1]江苏大学附属医院影像科,江苏镇江212001 [2]江苏大学附属医院科教科,江苏镇江212001 [3]镇江市第四人民医院放射科

出　　处：《实用放射学杂志》2004年第2期133-135,共3页Journal of Practical Radiology

摘　　要：目的　研究多层螺旋CT动脉期、胰腺期和肝脏期三期增强扫描在胰腺癌诊断的作用。方法　 2 5例经证实的胰腺癌患者行三期增强扫描 ,扫描延迟时间分别为 2 0s ,3 8s和 75s ,注射造影剂速率为 3ml s,观察并比较正常胰腺和肿瘤在三期的增强情况。结果　肿瘤 -正常胰腺密度差胰腺期 (67.2± 2 9.5)较另外两期有显著性差异 (Ρ <0 .0 1) ,肝脏期 (40 .2± 2 5.1)较动脉期 (2 4.5±17.3 )也有显著性差异 (Ρ <0 .0 5)。Objective To evaluate the value of contras t- enhanced multiphasic image in diagnosis of pancreatic adenocarcinoma by using mu lti-detector row helical CT.Methods 25 patients with proved pancreatic adenocarcinoma s underwent multiphase, contrast-enhanced, multi-detector row CT during the arte rial phase ( AP, 20 s ), pancreatic parenchymal phase ( PPP, 38 s ) and hepatic phase ( HP, 75 s ) at a rate of 3 ml/s. The enhancement of normal pancreas and tumor were measured and compared during all three imaging phase.Results Maximal tumor-to-parenchyma attenuation differenc e was significantly greater in PPP( 67.2±29.5 ) than in AP and HP (Ρ< 0.01). Tumor-to-pancreas contrast in HP(40.2±25.1) was superior to that in AP(24.5±17.3)(Ρ<0.05) .Conclusion A combination of PPP and HP imaging has an imp ortant value in diagnosing pancreatic adenocarcinoma.

关 键 词：多层螺旋CT三期扫描 胰腺癌 诊断 X线计算机 体层摄影 肿瘤 

分 类 号：R735.9[医药卫生—肿瘤] R814.42[医药卫生—临床医学]