评价超声造影与CT平扫加增强对胰岛细胞瘤的术前定位效果

目的比较经腹超声造影与CT平扫加增强对胰岛细胞瘤的术前定位准确性。方法回顾性分析41例胰岛细胞瘤患者(男性16例,女性25例,年龄在18～75岁,平均42.9±12.45岁)术前的超声造影、CT平扫加增强的检查结果,比较两种种检查的准确性。结果通过血液生化明确诊断为胰岛细胞瘤的41例患者38例患者进行了平扫及增强CT检查,其中22例患者的肿瘤定位准确,准确率为57.8%;34例进行了超声造影检查,其中29例患者定位准确,准确性85.3%;31例患者进行了内镜超声检查,其中25例定位准确,准确性为80.6%。统计分析表明超声造影与CT平扫加增强定位准确性存在显著差异(P<0.05)。结论与CT比较,超声造影对胰岛细胞瘤术前定位的准确性更高,在术前定位方面具有优势。

Value of the Contrast-enhanced Ultrasonography and contrast-enhanced CT in preoperative localization of pancreatic insulinoma

Purpose To compare the accuracy of the contrast-enhanced ultrasonography(CEUS) with contrast-enhanced CT in preoperative detection of insulinoma.Methods Fourteen patients(25 female and 16 male range18~75 years old;mean age,42.9±12.45 years old) with clinical and biochemical signs of pancreatic insulinoma who underwent CT and CEUS were reviewed.The accuracy of preoperative diagnoses location of the lesions was evaluated and compared with surgical findings based on palpation and intraoperative sonography.Results Forty-one stances of biochemically proven insulinoma were identified.Of the 41 patients treated surgically,38 had contrast-enhanced CT and 34 had CEUS,with successful localisation in22(57.8%) by contrast-enhanced CT and 29(85.3%) by CEUS respectively.The analysis showed that the sensitivity and the accuracy had a significant difference between CEUS and CT(P<0.05).Conclusion The sensitivity and the accuracy of CEUS is more helpful than CT in preoperative detection of pancreatic insulinoma.