Fig. 1.

Cardiac roadmapping technology. a Cine loop is analyzed on contrast density. b Angiography is converted into a mask. c A heart cycle of masks is stored in a library, each one defined by its C-arm position. d If a corresponding C-arm position is accomplished, the software analyses guide catheter and wire shape (fixed curvatures, arrows). e Library search for mask with similar fixed curvatures (arrows) and f Superimposed real-time image of the mask and the fluoroscopy image through attachment of the coronary tree to fixed curvatures