超声造影与腹腔镜超声在胰岛素瘤定位诊断中的对比研究

目的 比较分析超声造影和腹腔镜超声对胰岛素瘤术前定位诊断的价值.方法 回顾性分析同期接受超声造影检查和术中腹腔镜超声检查的33例有明确术后病理诊断的胰岛素瘤患者的资料,比较两种影像学方法对胰岛素瘤定位诊断的准确性.结果 与手术病理结果比较,超声造影诊断胰岛素瘤的敏感性和准确率分别为92.3%(36/39)、90.0%(36/40);腹腔镜超声与病理结果完全一致;两种影像学技术对胰岛素瘤的定位诊断准确率差异无统计学意义(χ2=4.21,P=0.04).结论 超声造影有助于胰岛素瘤的术前定位诊断.对于进行腹腔镜下胰岛素瘤切除的患者,在肿瘤切除前推荐结合使用超声造影与腹腔镜超声进行定位检查.

Localization diagnosis of insulinoma by contrast-enhanced ultrasonography compared with laparoscopic ultrasonography

Objective To compare the value of contrast-enhanced ultrasonography (CEUS) with that of laparoscopic ultrasonography (LUS) in localization diagnosis of insulinoma. Methods Thirty-three patients with insulinoma,who received operation, were retrospectively reviewed. All cases were examined by both CEUS and LUS before the tumor removed. Both imaging modalities in diagnosis of insulinoma were analyzed. Results By this study the sensitivity and accuracy of CEUS were 92.31% and 90.0% respectively. Those of LUS were consistent with pathologic findings completely. The accuracy of CEUS was not different with that of LUS (χ2 = 4.21, P = 0. 04). Conclusions CEUS can be used for location diagnosis of insulinoma. For the patients expecting laparoscopic treatment, combination of CEUS with LUS will be suggested before insulinoma is removed.