Downloadable computer software for medical image reconstruction, post-processing, and quantitative and grayscale visualization, including generation of parametric maps (e.g., blood volume, perfusion, and flow), 3D/4D visualization, and vessel-centric views; Downloadable medical software for use in the field of medical imaging, namely, registration, motion correction, denoising, artifact reduction, segmentation of vascular and soft-tissue structures, quantitative parametric analysis (e.g., blo...