胰岛细胞瘤的双期MSCT表现(附9例报告)

目的:探讨双期MSCT扫描对胰岛细胞瘤的诊断价值。方法:对9例手术证实为胰岛细胞瘤的双期MSCT表现进行分析,其中功能性胰岛细胞瘤5例,无功能性胰岛细胞瘤4例。结果:功能性胰岛细胞瘤多较小,而无功能性胰岛细胞瘤体积均较大。大部分功能性胰岛细胞瘤及无功能性胰岛细胞瘤增强扫描均明显强化,动脉期较门脉期更清晰显示肿瘤及血管受侵,动门脉期对淋巴结转移的显示无明显差异。结论:双期MSCT对胰岛细胞瘤的检出、分期及判断预后有很大意义,可在术前提供重要信息。

Dual-phase multi-slice CT in the diagnosls of pancreatic islet cell tumors (nine cases report)

Objective: To evaluate the value of dual-phase multi-slice CT(MSCT) in the diagnosis of pancreatic islet cell tumors. Methods: Dual-phase MSCT images were analyzed retrospectively in 9 cases with pancreatic islet cell tumors(insulinomas in 3 cases, gastrinoma 1 case, glucagonoma 1 case, non-functioning islet cell tumors 4 cases) proven by pathology. Results: The volume of insulinomas was relatively small, while that of non-functioning islet cell tumors were relatively large. All tumors were obviously enhanced after contrast examination. The detection of tumors and invasion of blood vessels were better visualized in the arterial phase than in the venous phase; no obvious difference in the detection of metastatic lymph nodes in both phases. Conclusion: Dual-phase MSCT, which can provide valuable information before surgery, plays an important role in the detection of tumors, staging, and determination of prognosis.