MRI半剂量动态增强扫描对垂体微腺瘤的诊断分析  

Analysis of MRI Half-Dose Dynamic Enhanced Scan in Diagnasing Pituitary Microadenoma

作　　者：蔡春祥 张威江[2] 张英[2] 汪桦[2] 

机构地区：[1]兴化市人民医院CT室,江苏兴化225700 [2]无锡市第二人民医院影像科,江苏无锡214002

出　　处：《现代医用影像学》2016年第5期875-877,共3页Modern Medical Imageology

摘　　要：目的:评价MRI半剂量动态增强诊断垂体微腺瘤的价值。材料与方法:对32例经过临床综合诊断确诊的病例,行MRI平扫及半剂量(0.05mmol/kg)动态增强扫描。并利用工作站后处理功能,绘制出动态增强信号强度一时间曲线图。结果:32例垂体微腺瘤中,病灶大小<5mm,20例,5-10mm 12例。平扫Tl WI可见低信号影18例,无明显异常信号14例,而半剂量动态增强扫描均发现病灶32例,表现为动态早期稍低信号影。结论:半剂量MRI半剂量动态增强扫描在诊断垂体微腺瘤的敏感性、检出率都好于其它检查。有较高的临床价值。Purpose： To evaluate the value of half-dose dynamic contrast enhanced MRI scan in diagnosing pituitary miemadenoma. Materials and Methods： The clinical diagnosis by 32 cases of comprehensive diagnosis, flat and half and MRI（0.05 mmol/kg）, and the use of dynamic scan function, draw the workstation post-processing enhanced dynamic signal strength-time curves. Results： Within 32 cases of pituitary microadenoma, there ale 20 cases sized less than 5ram; 12 cases sizeel between 5 and 10mm. 18 cases showed low signal intensity in T1 WI, 14 cases showed no obvious abnormal signal. All lesions could be detected by half-dose dynamic contrast enhanced MRI scan, they showed little low signal intensity in the early phase. Conclusion： A dose of magnetic resonance imaging（MRI） scan in half dose of dynamic anterior pituitary adeno- mas diagnosis rate of sensitivity, all are better than other examination~ have a high clinical value.

关 键 词：磁共振成像 垂体微腺瘤 

分 类 号：R445.2[医药卫生—影像医学与核医学] R736.4[医药卫生—诊断学]