多层螺旋CT多期相扫描及多层面重建诊断功能性肾上腺肿瘤的临床应用

Clinical Study of MSCT and MPR on Diagnosis of Hyperfunctional Adrenal Gland Neoplasm

目的探讨多层螺旋CT(MSCT)多期相扫描及多层面重建(MPR)对功能性肾上腺肿瘤的诊断价值。方法应用GELightspeed Ultra 16层螺旋CT对113例患者进行肾上腺多期相扫描,所得图像进行MPR,结合临床资料分析不同功能性肾上腺肿瘤在各期相扫描中的特点。结果醛固酮腺瘤39例,皮质醇腺瘤25例,嗜铬细胞瘤27例,无功能肾上腺皮质肿瘤22例。醛固酮腺瘤组的各期相CT值均小于皮质醇腺瘤组(P<0.05),但相对造影剂清除百分比大于皮质醇腺瘤组(P<0.05);皮质醇腺瘤组动脉期扫描CT值低于嗜铬细胞瘤组(P<0.05);皮质醇腺瘤组在各增强扫描期相CT值均大于无功能皮质腺瘤组(P<0.05)。结论MSCT多期相扫描及MPR能够提高体积较小肿瘤的检出率,并对功能性肾上腺疾病的诊断具有一定临床应用价值。

Objective To evaluate the clinical value of multislice spiral CT （MSCT） and multiplanar reconstruction （MPR） for the diagnosis of adrenal gland neoplasm. Methods 113 cases of adrenal gland neoplasm underwent multi-phase MSCT scan. All the images were performed MPR at GE adw 4.1or 4.2 workstation. The characteristics of different adrenal gland masses were analyzed. Results 39 cases with aldosteronoma, 25 cases with cortisoloma, 27 cases with pheochromocytoma and 22 cases with non-hyperfunctional adrenal adenoma were included in this study. CT attenuation value was lower in aldostemnoma than in cortisoloma at every phase, was higher in pheochromocytoma than in cortisoloma at artery-phase, and was higher in cortisoloma than in non-hyperfunctional adrenal adenoma at enhanced phase. Conclusion MSCT and MPR can improve the detection ratio and diagnosis of adrenal gland tumor.