目的    探讨多层螺旋CT（multi-slice spiral CT，MSCT）对胰腺癌血管侵犯的定量评估及可切除性的应用价值。方法    对2009年8月至2010年6月吉林大学中日联谊医院行320排CT检查的22例胰腺癌病人进行前瞻性定量评估，以手术结果为“金标准”进行对照分析。结果    MSCT评估血管侵犯的敏感性为91.2%，特异性为98.7%，准确性为96.4%；在测量血管侵犯长度和受侵段血管与血管分叉距离方面仅2支血管测量不准确。结论 MSCT判断胰腺癌血管侵犯的准确性很高，可准确量化血管侵犯的程度及范围，对胰腺癌的诊治有重要的参考价值。

Study of quantitative assessment of vascular invasion by pancreatic carcinoma with multi-slice spiral CT                 TAO Ye*, TIAN Li. *Department of General Surgery, China-Japan Union Hospital of Jilin University, Changchun 130033, China
Corresponding author: TIAN Li, E-mail: tianli1954@gmail.com
Abstract    Objective    To discuss the application value of quantitative assessment of vascular invasion by pancreatic carcinoma with multi-slice spiral CT (MSCT). Methods    The essay analyzed 22 cases of pancreatic carcinoma admitted between August 2009 and June 2010 in China-Japan Union Hospital of Jilin University. They had been assessed prospectively and quantitatively with 320-slice spiral CT. Compared the CT scans results with operations, the diagnosis value of MSCT for pancreatic carcinoma was evaluated. Results    For the assessment of vascular invasion with MSCT, the sensitivity was 91.2%, and the specificity was 98.7%, and accuracy was 96.4%. When the length and the distance between the invaded vessel and vessel branches were measured, only two vessels were not correctly measured by MSCT. Conclusion    MSCT has high accuracy of evaluating the vascular invasion by pancreatic carcinoma, so that it can quantize the degree and range of invaded vessel correctly and it can provide important reference value for diagnosing and treating pancreatic carcinoma.