摘要
目的 探讨多种影像学方法在胰岛素瘤术前定位诊断中的价值。资料与方法 2 8例经手术病理证实的胰岛素瘤患者于术前做B超和DSA检查 ,2 2例行胰腺CT扫描 ,10例行MRI检查。结果 4种影像学方法对胰岛素瘤术前定位诊断准确率分别为 :DSA 82 % (2 3/ 2 8) ,超声 5 7% (16 / 2 8) ,CT 4 1% (9/ 2 2 ) ,MRI 90 % (9/ 10 )。DSA与超声、MRI相结合使本组术前定位诊断准确率达 93% (2 6 / 2 8)。结论 MRI和DSA是胰岛素瘤术前定位诊断准确率高而有效的方法。对临床有Whipple三联征患者 ,应首先选用超声和MRI或螺旋CT检查 ,特别是MRI或螺旋CT薄层快速动态增强扫描。当上述无创检查方法仍不能明确诊断时 ,可进一步行胰血管造影 。
Objective To evaluate different imaging methods in the preoperative localization of insulinoma.Materials and Methods Twenty eight patients with pathologically proved insulinoma were collected in this study. Of the total 28 patients, preoperative DSA and US were performed in all, CT scanning in 22 and MRI in 10.Results The accuracy of preoperative localizing diagnosis of DSA, US, CT and MRI was 82% (23/28), 57% (16/28), 41% (9/22) and 90% (9/10), respectively. And the accuracy was up to 93% (26/28) when DSA, US and MRI were taken into consideration altogether.Conclusion MRI and DSA are effective imaging methods for preoperative localizing diagnosis of insulinoma. For patients presented with Whipple's triad symptoms, US and MRI or spiral CT, especially dynamic contrast enhanced thin slice MRI or spiral CT scanning, are of choice. DSA should be considered when all the above non invasive examinations are enable to clarify the diagnosis. A combination of different imaging methods can improve the diagnostic accuracy.
出处
《临床放射学杂志》
CSCD
北大核心
2002年第11期861-864,共4页
Journal of Clinical Radiology
