Figure 4.

3D reconstructions of MRA images. (A) Undergarment impression (arrowheads) can distort the skin and cause displacement and errors in the position of skin coordinates for both the inferior gluteal crease reference point (arrows) and perforators; (B) to identify the skin landmarks on MRA images, a vitamin E capsule (arrow) is taped to the location on the patient’s skin; (C) umbilical fascial insertion to the rectus sheath is fixed, and the location does not change despite changes in patient position (arrow). MAR, magnetic resonance angiography.