Fig. 6From: 2D perfusion DSA with an open-source, semi-automated, color-coded software for the quantification of foot perfusion following infrapopliteal angioplasty: a feasibility studyRegion of interest (ROI) initialization for analysis and marked registration points. a Pre-therapy with ROIs and registration point in red (arrow) and post-therapy with ROIs located by the registration procedure and registration point in green (arrow)Back to article page