MRI同层动态增强对垂体微腺瘤的诊断价值  

Valuation of iso-layer dynamic gadolinium-enhanced MR imaging for diagnosis of pituitary microadenomas

作　　者：秦伟[1] 储成凤[2] 杨小庆[2] 麦筱莉[1] 金琴娣[2] 张琳琴[2] 孟爱芳[2] 

机构地区：[1]东南大学临床医学院,江苏南京210009 [2]东南大学附属中大医院放射科,江苏南京210009

出　　处：《东南大学学报（医学版）》2004年第5期311-313,共3页Journal of Southeast University(Medical Science Edition)

摘　　要：目的 :分析垂体微腺瘤的MRI同层动态增强特征。方法 :对 40例临床怀疑为垂体微腺瘤的病人行同层动态增强MRI扫描 ,并绘出时间 -信号强度曲线图。结果 :40例病人中共检出垂体微腺瘤 2 6例。同层动态增强后垂体微腺瘤的MRI表现为圆或椭圆形的低或稍低信号 ,似“充盈缺损” ;垂体微腺瘤的最大信号强度多出现在注入造影剂后 3 2～ 96s ,以 64s最明显。结论 :同层MRI动态增强对垂体微腺瘤的诊断有较高价值。Objective To analysis the characteristics of pituitary microadenomas with iso-layer dynamic gadolinium-enhanced MR imaging. Methods Iso-layer dynamic gadolinium-enhanced MR imaging was applied to 40 patients with doubtful pituitary microadenomas in clinic and the diagram of curves of time-signal intensity was drawn. Results 26 patients were testified to have pituitary microadenomas out of all 40 cases; Whose iso-layer dynamic gadolinium-enhanced MR imaging showed round or elliptic low or slightly low signal, which was liked 'filling defect'; The maximum signal intensity of pituitary microadenomas appeared after 32、96 seconds that contrast medium had been injected and the manifestation was the most obvious in the 64th second. Conclusion Iso-layer dynamic gadolinium-enhanced MR imaging is high valuable on the diagnosis of pituitary microadenomas.

关 键 词：MRI 同层动态增强 垂体微腺瘤 诊断 磁共振成像 

分 类 号：R736.4[医药卫生—肿瘤] R445.2[医药卫生—临床医学]