Low-Computational Cost Stitching Method in a Three-Eyed Endoscope

Figure 4

Correct positioning of the introducer. (a) The introducer is aligned with the plane corresponding to the aortic annulus, where the nadirs of the cusps reside. (b) Following a rotation on its own axis, the introducer is oriented to match the nadir of the replacement valve with the nadir of the old calcified valve.

(a)

(b)