磁共振灌注成像在颅内星形细胞瘤诊断中的价值  

The Yalue of Perlusion in Astrocytic Gliomas

作　　者：牛广明[1] 高阳[1] 韩晓东[1] 

机构地区：[1]内蒙古医学院附属医院磁共振室,内蒙古呼和浩特010050

出　　处：《内蒙古医学杂志》2007年第4期398-401,F0004,共5页Inner Mongolia Medical Journal

摘　　要：目的:探讨磁共振灌注成像(PWI)及rCBV值在术前评价星形细胞瘤组织学分级中的价值。方法:41例经病理组织学证实的星形细胞瘤,均在常规MR扫描后,进行PWI成像扫描。获得PW伪彩图,利用分析软件包Function-Tool计算rCBV值,进行统计学分析。结果:高度恶性星形细胞瘤(21例)rCBV值为4.04±1.75(1.98-8.31)。低度恶性星形细胞瘤(20例)rCBV值为1.64±0.90(0.23-3.58)。结论:磁共振灌注成像(PWI)对星形细胞瘤的术前分级及对术后复发的判断具有重要价值。Objective： To evaluate the potential of rCBV in preoperative assessment of histologic grading of astrocytic glioma by perfusion weighted imaging. Methods： MR imaging was performed in 41 patients with pathologically proven astrocytic Glioma by using PWI, The perfusion data was deconvoluted to obtain a color map of rCBV, To obtain rCBV through Function - Tool. Results： The rCBV in high - grade astrocytic g lioma （n = 21） was 4,04 ± 1.75（1.98-8.31）. The rCBV in low - grade astrocytic glioma （n = 20） was 1.64 ± 0.90 （0,23-3.58）. Conclusions： Perfusion MR imaging is very useful in preoperatively predicting tumor grade of astrocytic glioma.

关 键 词：磁共振 灌注成像 星形细胞瘤 

分 类 号：R445.2[医药卫生—影像医学与核医学]