论文部分内容阅读
目的:探讨胃肠道类癌动态增强CT影像学表现,旨在提高对该病的诊断水平。方法:回顾性分析11例胃肠道类癌患者的CT平扫及动态增强资料,对病变部位的肠壁厚度、边界、形态、周围毗邻结构情况、密度及动态增强特点进行评价;绘制ROC曲线评价远处转移的预测因素。结果:病变质地平扫CT值为26~48 HU,平均为(33.54±6.96)HU;动脉期CT值为33~87 HU,平均为(62.72±19.35)HU;门静脉期CT值为56~100 HU平均(71.18±12.54)HU;延迟期CT值为43~78 HU,平均为(60.09±12.69)HU。病变强化特点以渐进式强化为主,于门静脉期达到峰值,延迟期下降不明显,形成一个平台;病变管壁厚度对预测类癌远处转移有一定价值(AUC=0.917,P<0.05)。结论:动态增强CT扫描诊断胃肠道类癌具有应用价值。
Objective: To investigate the dynamic enhancement of CT images of gastrointestinal carcinoid tumors in order to improve the diagnosis of the disease. Methods: The CT scan and dynamic enhancement data of 11 patients with gastrointestinal carcinoid were retrospectively analyzed. The thickness, boundary, morphology, surrounding structure, density and dynamic enhancement of the lesion were evaluated. The ROC curve Predict predictors of distant metastases. Results: The CT scan value of lesions was 26 ~ 48 HU with an average of (33.54 ± 6.96) HU; the arterial phase CT value was 33 ~ 87 HU with an average of (62.72 ± 19.35) HU; the portal vein CT value was 56 ~ 100 HU averaged (71.18 ± 12.54) HU; delayed CT values ranged from 43 to 78 HU with an average of (60.09 ± 12.69) HU. The lesions were characterized by progressive enhancement, peaked at the portal venous phase and no obvious decrease in the delay phase, forming a platform. The wall thickness of the lesion was of value in predicting the distant metastasis of carcinoid carcinoma (AUC = 0.917, P <0.05). Conclusions: Dynamic contrast-enhanced computed tomography (CT) in the diagnosis of gastrointestinal carcinoid tumors has the value of application.