多层螺旋CT与单层螺旋CT诊断胰腺癌侵犯胰周血管的比较分析研究

 目的　比较分析多层螺旋CT(MSCT)与单层螺旋CT(SSCT)对胰腺癌侵犯胰周血管的判断准确性。方法　 85例手术病理证实为胰腺导管细胞癌患者 ,术前随机行SSCT(n =4 9)与MSCT(n =36 )胰腺检查。术中由手术者仔细探查胰周主要血管。结果　MSCT与SSCT判断胰腺癌侵犯胰周血管的敏感性分别为 80 .5 % (33/ 4 1)及 5 5 % (2 2 / 4 0 ) ,特异性分别为 95 .7% (111/ 116 )及 95 .1% (117/ 12 3)。MSCT与SSCT对胰腺癌手术可切除性判断的准确性分别为 10 0 % (10 / 10 )及 92 .7% (13/ 14 ) ,对胰腺癌手术不可切除性判断的准确性分别为 84 .6 % (2 2 / 2 6 )及 77.1% (2 7/ 35 )。结论　MSCT胰腺检查诊断胰腺癌侵犯胰周血管的准确性较SSCT高。

Comparision and Analysis of Peripancreatic Vascular Invasion in Pancreatic Adenocarcinoma Diagnosed with Multislice Spiral CT and Singleslice Spiral CT

Objective To compare and analyze the accuracy of peripancreatic vascular invasion in pancreatic adenocarcinoma diagnosed with multislice spiral CT (MSCT) and singleslice spiral CT (SSCT).Methods Eighty-five patients of pancreatic adenocarcinoma confirmed by surgeco-pathology were preoperatively studied by SSCT ( n =49) and MSCT ( n =36) randomly. The peripancreatic major vessels were investigated carefully by surgeons during operation.Results The sensitivity of peripancreatic vascular invasion judged by MSCT and SSCT was 80.5% (33/41) and 55% (22/40) respectively. The specificity was 95.7% (111/116) for MSCT and 95.1% (117/123) for SSCT respectively. The accuracy of resectability of pancreatic carcinoma was 100% (10/10) for MSCT and 92.7% (13/14) for SSCT respectively. That of unresectability was 84.6% (22/26) for MSCT and 77.1% (27/35) for SSCT respectively.Conclusion MSCT was better than SSCT in determining the accuracy of peripancreatic vascular invasion by pancreatic carcinoma.