目的 研究CT增强扫描在乏脂肪肾上腺腺瘤中的诊断价值。方法 选取78例肾上腺肿瘤患者，按组织病理检查结果 分为腺瘤及非腺瘤组，对比两组在CT增强延时扫描下病灶对比剂廓清速度特征。结果 发现肾上腺腺瘤与非腺瘤比 较，前者延时扫描6min密度、12min对比剂廓清迅速，CT值降至24Hu以下，P＜0.05。结论 CT能从延时扫描6min、 12min对比剂廓清速度将乏脂肪肾上腺腺瘤及非腺瘤进行区分。CT增强扫描在鉴别乏脂肪肾上腺腺瘤上有重要价 值。

Objective To study diagnostic value ofenhanced CT scan on adrenal adenoma without CT. Methods Seventy eight patients with adrenal tumor were selected, and theywere divided into an adenoma tumor group and a non- adenoma tumor group, and clearance characteristics of contrast agent of lesions in two groups under enhanced and delayed scan of CT were compared. Results The findings showed that the density of contrast agent of adrenal adenoma within 6 min and 12 minutes of delayed scan sweeps away rapidly when compared to that of non- adrenal adenoma, and CT value dropped below 24 hu (P<0.05). Conclusion CT is capable of differentiating adrenal adenoma and non-adrenal adenoma without fat from delayed scan contrast agent with the clearance speed at 6 min and 12 min. Enhanced scan CT delivers important value in differentiating adrenal adenoma without fact.