Fig. 3From: DCE and DSC perfusion MRI diagnostic accuracy in the follow-up of primary and metastatic intra-axial brain tumors treated by radiosurgery with cyberknifea (axial SE T1-weighted after Gadolinium administration), b (rCBV colorimetric map), c (Ktrans colorimetric map). Right frontal breast metastasis treated by SRS follow-up MRI examination. The enhancing lesion shows a central component with high rCBV and Ktrans values according to tumor recurrence and a peripheral component with low rCBV and Krans values according to the coexistence of radiation necrosisBack to article page