Mapping High-Risk Arteries Using Doppler Ultrasound for Forehead Contouring in Korean Patients

Forehead flatness is common in Korean populations, and one of the most straightforward techniques for adding volume and achieving a concave forehead is injecting hyaluronic acid (HA) filler. However, definitive guidelines for this procedure are lacking, and careful attention to the arterial anatomy is required to avoid vascular complications.