磁敏感加权成像对脑星形细胞瘤术前分级的诊断价值
The preoprative diagnostic value of susceptibility weighted imaging in grading cerebral astrocytomas
胡茂清 1龙晚生 1龙昉 1周红英 1吴国昌 1罗学毛 1李伟1
作者信息
- 1. 529030 广东省江门市中心医院放射科
- 折叠
摘要
目的探讨磁敏感加权成像对脑星形细胞瘤术前分级诊断的价值.方法分析39例经手术病理证实为脑星形细胞瘤患者的磁敏感加权成像(SWI)的影像表现,对瘤内磁敏感信号(ITSS)级别进行分级并判断肿瘤的高、低级别,与病理结果进行对照.结果11例低级别组星形细胞瘤中,ITSS评分0级6例,1级5例.28例高级别组星形细胞瘤中,ITSS评分1级2例,2级7例,3级19例.高低级别组星形细胞瘤的ITSS级别有统计学差异(Z=-4.986,P<0.01),ITSS级别与星形细胞瘤的病理级别呈正相关(r=0.958, P<0.01).结论不同级别脑星形细胞瘤内ITSS级别有明显差异,ITSS级别对星形细胞瘤术前分级有重要价值.
Abstract
Objective To explore the preoprative diagnostic value of susceptibility weighted imaging in grading cerebral astrocytomas. Methods The imaging findings of susceptibility weighted imaging(SWI) of 39 patients with pathologically confirmed cerebral astrocytomas were analyzed, scored the intratumoral susceptibility signals(ITSS) level and judged the histopathologic grade of the tumor, then compared with pathological findings. Results Astrocytomas in 11 cases of low grade group, ITSS scored 0 in 6 cases, 1 in 5 cases. 28 cases of high grade group astrocytomas, ITSS scored 1 in 2 cases, 2 in 7 cases and 3 in 19 cases. There was statistical significance in intratumoral ITSS levels between high and low grade group astrocytomas(Z=-4.986,P<0.01), there was positive correlation between the levels of intratumoral ITSS and the grade of astrocytomas(r=0.958, P<0.01). Conclusion Different grades of brain astrocytomas show significantly difference on intratumoral ITSS levels, probably be helpful for evaluation of astrocytomas grading preoperatively.
关键词
脑/星形细胞瘤/磁共振成像/磁敏感加权成像Key words
Brain/Astrocytic tumors/Magnetic resonance imaging/Susceptibility weighted imaging引用本文复制引用
基金项目
出版年
2013
NETL
NSTL
维普
万方数据