Objective To discuss the correlation between MMP-9 expression levels and ADC values in peritumoral edema of cerebralastrocytoma.
目的探讨脑星形细胞瘤瘤周水肿表观扩散系数（ADC）值与基质金属蛋白酶（MMP-9）表达的关系。
2
Objective: to study the scanning and postprocessing technique of MR perfusion and its application in evaluating cerebralastrocytoma.
目的：研究MR灌注成像的扫描技术、后处理技术及其评价脑星形细胞瘤的价值。
3
The incidence of umbilicated indentation in astrocytoma, cerebral metastases and brain abscess was nearly the same, showing no value in qualitative diagnosis.