Figure 3
The process of 3D angiographic coronary artery volume reconstruction by 3D QCA. (A) Selection of the routine coronary angiography acquisition, two image sequences acquired at two angiographic views with projection angles at least 25° apart. (B) Identifying one to two anatomical markers such as bifurcations and side branches for automated correction of system distortions in the image geometry. (C) Manually defining the corresponding start and end positions of the interested vessel segment and extracting its contours and centerline. (D) Automating 3D coronary artery reconstruction of the vessel segment of interest. (E) Final 3D QCA report, including coronary volume, length, and proximal and distal diameter of the segment of interest. The diameter analysis includes a minimum (yellow line), maximum (blue line) and reference (red line) dimension. Abbreviations: QCA quantitative coronary angiography.
