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目的探讨多层螺旋CT(MSCT)多期及动态增强扫描诊断胰岛素瘤的价值。方法对6例(7个瘤体)手术和病理证实为胰岛素瘤的患者术前行胰腺MSCT双期增强扫描,2例追加动态增强扫描。观察并比较平扫、动脉期、静脉期及动态增强扫描肿瘤的检出情况及影像表现。结果螺旋CT双期增强扫描发现肿瘤4例,1例漏诊,另1例平扫、动脉、门脉期均呈等密度未检出,2例经动态增强扫描后均清晰显示。结论螺旋CT多期及动态增强扫描提高了胰岛素瘤的检出率,对胰岛素瘤术前定位有较高的价值,动态增强扫描效果更佳。
Objective To investigate the value of multislice spiral CT (MSCT) multi-phase and dynamic contrast-enhanced scan in the diagnosis of insulinoma. Methods Six patients (7 tumors) with confirmed and confirmed pathology of insulinoma underwent preoperative MSCT double-phase contrast enhanced scan and 2 additional dynamic contrast-enhanced scan. Observe and compare plain detection, arterial phase, venous phase and dynamic contrast-enhanced scanning of tumor detection and imaging performance. Results In the double helical CT scan, 4 cases of tumors were found, 1 case missed diagnosis, 1 case had plain scan, and arterial and portal venous phases were not detected. The other two cases were clearly displayed after dynamic contrast-enhanced scanning. Conclusion Spiral CT multi-phase and dynamic contrast-enhanced scanning improve the detection rate of insulinoma, which has high value for the preoperative localization of insulinoma and better dynamic enhancement scan.