Fig. 5From: Vascular mapping of the retroauricular skin – proposal for a posterior superior surgical incision for transcutaneous bone-conduction hearing implantsPrevalence of the largest artery in each sector, measured by Ultrasound for 20 volunteers. The chart gives a detailed percentage overview of intraluminal arterial diameters in each sub-region. Artery types: type 1: 0–0.5 mm, type 2: 0.5–1 mm, type 3: 1–2 mm, type 4: >2 mmBack to article page