Fig. 1

Independent component analysis (ICA) of dynamic susceptibility contrast (DSC-MRI). Left - Temporal evolution of normalized T₂* from arterial and venous component. Right – ICA derived Z-score probability maps (p < 0.5) for respective components for one representative patient. Results are overlaid on anatomical T1-weigthed post-contrast image. Sagittal plane representing selected slices (from left to right) to cover polygon of Willis, sagittal sinus and tumor region. Binarized arterio-venous (positive Z-score values) and overlap mask (AVOL) are overlaid to the T1-weigthed post-contrast image