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目的探讨MSCT多期增强检查在胰岛细胞瘤中的诊断价值。方法 14例经手术病理证实为胰岛细胞瘤的MSCT增强扫描图像进行回顾性分析,重点分析增强后多期强化特点。结果功能性胰岛细胞瘤12例,均为胰岛素瘤,平扫与正常胰腺分界不清,1例可见钙化,12例增强后均表现为动脉期明显均匀强化,静脉期强化程度略下降,延迟期病灶密度与正常胰腺相近;无功能性胰岛细胞瘤2例,增强扫描均呈周边明显强化,肿瘤内部不均匀强化。结论 MSCT多期成像中动脉期及静脉期对胰岛细胞瘤诊断具有重要价值。
Objective To investigate the diagnostic value of multi-phase MSCT in diagnosis of islet cell tumor. Methods A retrospective analysis was performed on MSCT enhanced scanning images of 14 cases of islet cell tumor confirmed by surgery and pathology. The characteristics of multi - stage enhancement after intensive operation were analyzed emphatically. Results In 12 cases of functional islet cell tumor, all were insulinoma. The boundary between plain and normal pancreas was not clear. One case showed calcification. In the 12 cases, the enhancement was markedly uniform in arterial phase, slight decrease in venous phase, The density of the lesions was similar to that of the normal pancreas. In 2 cases of non-functional islet cell tumor, the enhancement scan showed obvious enhancement around the tumor and uneven enhancement of the tumor. Conclusion The arterial phase and venous phase in MSCT multi-phase imaging are of great value in the diagnosis of islet cell tumor.