Fig. 4From: 2D perfusion DSA with an open-source, semi-automated, color-coded software for the quantification of foot perfusion following infrapopliteal angioplasty: a feasibility studyTime-intensity curve calculation in masked concentration slices from various positions shown in red, green, blue, and pink. The perfusion blood volume and mean transit time maps were then used for perfusion blood volume map extraction according to Eq. (2)Back to article page