Temporal Artery Mapping With Microvascular Imaging: Anatomical Considerations for Filler Injections

Age-related volume loss in the temple results in a hollow and aged appearance. Although dermal fillers are commonly used for correction, the proximity of important blood vessels in this area increases the risk of complications.

To evaluate the vascular anatomy of the temporal region using microvascular imaging and assess its implications for anatomical planning of filler injection.

Microvascular imaging was used to visualize the superficial temporal artery in 62 patients and the deep temporal artery in 56 patients. Arterial depth was measured and analyzed in relation to age, gender, and body mass index. Measurement consistency was assessed using intraclass correlation analysis.

Lower-body mass index and younger age correlated with thinner soft tissue. In some cases, the deep temporal artery was 0.3 millimeters from bone, and the superficial temporal artery 1.15 millimeters from skin. Measurements showed excellent interobserver agreement. No other significant associations were found.

The authors' findings demonstrate that superficial and deep temporal arteries may run at variable depths, sometimes close to the skin or periosteum. These variations should be considered in planning temple filler injections. Microvascular imaging may assist in visualizing these vessels and identifying higher-risk zones.