MRI与MSCTA诊断胰腺癌胰周血管侵犯的价值比较

目的:研究磁共振成像（MRI）与多层螺旋电子计算机断层扫描血管造影（MSCTA）诊断胰腺癌胰周血管侵犯的应用 价值。方法:选择86例胰腺癌患者，根据手术结果发现其中胰周血管侵犯63例，无血管侵犯23例，所有患者均进行MRI与 MSCTA检测。统计两种方式检查胰周血管受侵犯的诊断效能、对不同等级血管侵犯检出率、对不同类型血管侵犯情况检出 率。结果:MSCTA的灵敏度及特异度分别为96.83%、91.30%，MRI为85.71%、86.96%，差异无统计学意义（P>0.05）；MSCTA 诊断准确度为95.35%，高于MRI的86.05%（P<0.05）；MSCTA对1、2、3、4级血管侵犯与手术结果比较符合率分别为94.29%、 98.04%、96.36%、95.83%，MRI分别为88.57%、92.16%、92.73%，87.50%，差异无统计学意义（P>0.05）；两种检测方式对不同 类型血管侵犯检出率无明显差异（P>0.05）。结论:MSCTA检测胰腺癌胰周血管侵犯准确率更高。

Comparison of diagnostic efficiency of MRI versus MSCTA in peripancreatic vascular invasion in pancreatic cancer

Objective To study the application value of magnetic resonance imaging (MRI) and multi-slice spiral computed tomography angiography (MSCTA) in the diagnosis of peripancreatic vascular invasion in pancreatic cancer. Methods A total of 86 patients with pancreatic cancer were enrolled. According to surgical results, it was found that there were 63 cases with peripancreatic vascular invasion and 23 cases without vascular invasion.All patients underwent MRI and MSCTA. The diagnostic efficiencies of two detection methods in peripancreatic vascular invasion, the detection rates for different grades of vascular invasions, and the detection rates for different types of vascular invasions were statistically analyzed. Results There was no significant difference in diagnostic sensitivity and specificity between MSCTAand MRI (96.83% vs 85.71%, 91.30% vs 86.96% P>0.05). The diagnostic accuracy of MSCTA was significantly higher than that of MRI (95.35% vs 86.05%, P<0.05). The coincidence rates between MSCTA and surgical results in the diagnosis of grade 1-4 vascular invasions were 94.29%, 98.04%, 96.36%and 95.83%, which were similar to those betweenMRI and surgical results (88.57%, 92.16%, 92.73%and 87.50%), without statistical differences (P>0.05). Moreover, there was no significant difference in the detection rate for different types of vascular invasions between two methods (P>0.05). Conclusion MSCTA is more accurate in detecting peripancreatic vascular invasion in pancreatic cancer.