Introduction to the concept of standardized facial ultrasound zones:
The standardized forehead zones:
Key structures that may be visible in the forehead zones:
ZONE
POSSIBLE KEY ANATOMY*
F1 Mid forehead
Frontalis M.
Supratrochlear A.
Paracentral / Central A
F2 1/2 way between mid-forehead-mid-procerus
Frontalis M.
Supratrochlear A.
Paracentral / Central A
F3 Mid-procerus
Procerus M.
Corrugator Supercilii M.
Supratrochlear A.
Paracentral / Central A
F4 Mid-temporal crest
Frontalis M.
Supraorbital A.
Sup. Temporal Artery (Frontal Branch)
F5 Medial canthal line, 2 cm above orbital rim
Frontalis M.
Corrugator Supercilii M.
Supratrochlear A.
Supraorbital A.
F6 Mid-pupil line, 2 cm above orbital rim
Frontalis M.
retro-orbicularis oculi fat (ROOF)
Supraorbital A.
F7 Lateral-canthal line, 2 cm above orbital rim
Frontalis M.
Sup. Temporal Fascia (SMAS)
Sub SMAS fat
retro-orbicularis oculi fat (ROOF)
Supraorbital A.
Sup. Temporal Artery (Frontal Branch)
*The structures that can be identified in each zone are subject to variation based on probe footprint, resolution and individual anatomical variability.