Figure 1From: Quantitative analysis of CT-perfusion parameters in the evaluation of brain gliomas and metastasesTransverse CT (Computer Tomography) image (a) and CBV (Cerebral Blood Volume) map (b) in a patient with grade III astrocytoma. In both the images, the hand-drawn ROI (region of interest) corresponding to the tumor and the contralateral ROI are displayed in black and white, respectively.Back to article page