Objective To evaluate the role of MR Perfusion Weighted Imaging in preoperation diagnosis of menin- giomas.Methods MR Perfusion Weighted images was performed in 47 patients with meningiomas followed by con- ventional imaging.Results The mean rCBV values of angioblastic was the highest in the parenchyma of tumor.The mean rCBV values of malignant group was the lowest.The biggest mean rCBV values among different type menin- giomas was statistically significant.The biggest mean rCBV values between benign and ma...