In recent years, the medical aesthetics industry has been shifting from extensive and experience-based operations to a refined, visualized and personalized diagnosis and treatment model. Traditional medical aesthetics treatments rely heavily on physicians' visual observation, manual palpation and clinical experience to judge subcutaneous anatomical layers, which come with numerous inherent limitations: substantial errors in dermal thickness assessment, low recognition of subcutaneous blood vessels and fascia layers, inability to identify the properties of previously injected fillers, and difficulty in precisely controlling the depth of energy-based treatments such as photoelectric and injection therapies. These issues can easily trigger complications including vascular embolism, facial uneven deformity, nerve damage and unsatisfactory treatment outcomes. Meanwhile, the lack of standardized quantitative methods to compare pre-operative and post-operative efficacy has become a core bottleneck hindering the safe and standardized implementation of medical aesthetic diagnosis and treatment.

High-frequency medical ultrasound boasts core advantages including non-invasive real-time imaging, zero ionizing radiation, convenient bedside operation, and high resolution for soft tissue imaging. It can clearly distinguish delicate soft tissue anatomical structures such as the epidermis, dermis, subcutaneous fat, SMAS fascia, superficial blood vessels, and tiny facial nerve branches, filling the subcutaneous blind spots that cannot be observed by naked eyes or manual palpation.

Mainstream high-frequency linear ultrasound probes commonly used in clinical practice (with a standard frequency range of 7–18 MHz) are suitable for superficial soft tissue imaging in medical aesthetics and boast remarkable clinical application value, covering the entire workflow of preoperative assessment, intraoperative guidance and postoperative review:

u Preoperative imaging evaluation

Accurately measure the thickness of each layer including the skin, subcutaneous fat, fascia and muscles; distinguish true puffy eyes from pseudo soft tissue bulging; identify abnormal tissues such as unknown residual materials from previous injections and subcutaneous cystic nodules.

u Intraoperative real-time guidance

Dynamically display the course of superficial facial arteries and veins to assist physicians in avoiding blood vessels during puncture; real-time track the depth of needle insertion to fundamentally eliminate the risk of vascular embolism caused by injectables entering the bloodstream.

u Postoperative follow-up monitoring

Screen for delayed subcutaneous hematoma and filler displacement, continuously monitor local inflammatory responses, and promptly identify postoperative complications.

Frontal region (forehead)

Common Forehead Issues: Horizontal forehead lines, transverse lines above glabellar lines, flat depressions, acne scars

Medical Aesthetics Precautions: The supraorbital vascular plexus and supratrochlear vascular plexus are absolute avoidance zones for all injection, dissection and energy-based treatments on the forehead.

Applicable Projects for Palm Ultrasound:

u Dynamic horizontal forehead lines: Inject botulinum toxin under ultrasound guidance while avoiding the supraorbital vascular plexus, extensions of the supratrochlear vascular plexus, nerves and areas where the agent may easily diffuse to non-target muscles to improve dynamic horizontal forehead lines

Glabellar area (glabellar lines)

Common glabellar issues: deep glabellar lines, sunken furrows and static wrinkles caused by frowning

Medical Aesthetics Precautions:There are two neurovascular foramen, the supraorbital foramen and supratrochlear foramen, plus abundant anastomotic branches of blood vessels along the frontal midline. This area is an absolute avoidance zone for all injections, dissections and energy-based therapies on the frontal region.

Projects suitable for palm ultrasound guidance:

u Mild dynamic wrinkles: Under ultrasound guidance, precisely inject botulinum toxin while avoiding the supraorbital vascular plexus and the extension of supratrochlear artery to improve mild dynamic wrinkles.

u Moderate to severe static depressions: Under ultrasound guidance, combine botulinum toxin with hyaluronic acid filler, or adopt autologous fat grafting to improve moderate to severe static depressions.

Periorbital area (orbital region: upper eyelid, outer canthus, lower eyelid, tear trough)

Common Periorbital issues: Upper eyelid wrinkle reduction, crow's feet elimination, under-eye bag contour correction, eyelid reshaping, etc.

Medical Aesthetics Precautions: The medial canthus and the medial vascular plexus of the upper eyelid are high-risk areas for injectable treatments

Projects Suitable for Palm Ultrasound:

u Upper Eyelid Wrinkle Reduction: Under ultrasound guidance, avoid the hazardous vascular plexus at the medial canthus and medial upper eyelid. Administer micro-doses of botulinum toxin to reduce upper eyelid wrinkles, combined with periorbital collagen filler to further improve static fine lines on the upper eyelid.

u Dynamic Crow's Feet Elimination: Under ultrasound guidance, inject botulinum toxin to erase dynamic crow's feet at the outer canthus.

    Simulated blood flow of the medial orbital artery

Nasal area (nasal bridge, nasal tip, alae nasi, nasal base)

Common Nasal Issues: Low nasal bridge and flat radix; enlarged and rounded nasal tip, wide alae; sunken nasal base (the root of nasolabial folds)

Medical Aesthetics Precautions: Identify and avoid blood vessels including the dorsal nasal artery, lateral nasal artery, communicating branches of the angular artery, and branches of the facial artery

Ultrasound-Guided Applicable Procedures:

Low nasal bridge and flat radix

u Minimally invasive medium-long term: Visualize tissues via ultrasound, map injection areas, and perform ultrasound-guided hyaluronic acid injection for precise rhinoplasty;

Long-term solution: Visualize tissues via ultrasound, map implantation areas, and implant silicone, expanded polytetrafluoroethylene (ePTFE) prostheses or costal cartilage to achieve rhinoplasty outcomes. Postoperative ultrasound evaluation of implantation effects and monitoring of postoperative recovery.

u Enlarged and rounded nasal tip, wide alae

Visualize tissues via ultrasound, map surgical scopes, and select surgical methods: nasal tip reduction, alar reduction or nasal tip elevation and shaping.

u Sunken nasal base (the root of nasolabial folds)

Visualize tissues via ultrasound, evade vascular plexuses such as communicating branches of the angular artery, select filling areas and needle entry points, and choose fillers (hyaluronic acid, autologous fat, nasal prostheses) to improve nasal contour.

Midface malar region (above the zygomatic bone)

Common issues in the midface malar region: descended malar fat pads, hollowness and atrophy, deepened nasolabial folds, soft tissue laxity

Medical aesthetics precautions: Blood vessels here communicate with those around the eyes and nasal dorsum, making this the second most frequent site for retrograde facial embolism. In addition, avoid injuring the zygomatic facial nerve

Applicable projects for ultrasound-guided aesthetic treatment:

u Malar region contouring: Use ultrasound to visualize tissue layers and map out the malar filling area. Under real-time ultrasound guidance, perform hyaluronic acid or autologous fat injection to achieve a plump contouring result.

Unlike focused ultrasound therapeutic devices, ultrasound imaging devices feature visual imaging as their core function and fully cover the complete medical aesthetic treatment cycle including pre-operative assessment, intra-operative navigation and post-operative follow-up. In the pre-operative stage, they can quantify thickness parameters of each skin layer, identify various unknown subcutaneous foreign bodies and filler materials, and screen for high-risk vascular anatomical variations in advance. During surgery, they provide real-time guidance for minimally invasive injection, thread lifting implantation, localized lipolysis and other procedures to avoid vascular and nerve damage risks from the source. After treatment, they dynamically monitor the whole process of collagen regeneration, subcutaneous edema, delayed hematoma and scar repair, and establish quantifiable and comparable objective imaging evaluation criteria for therapeutic effects.

There remain three major pain points hindering the implementation of ultrasound imaging technology in China's domestic medical aesthetics industry: low clinical penetration rate of relevant equipment, insufficient professional capacity of medical aesthetic physicians in image interpretation, and a lack of standardized supporting diagnosis and treatment protocols. In response to the above industry status, this paper systematically summarizes the key practical application points of ultrasound imaging in various medical aesthetic scenarios to provide references for clinical practice.

The era of refined and visual medical aesthetics has arrived. Ultrasound imaging equipment serves as core facilities for institutions to boost competitiveness and reduce complications. Our company offers customized probes and cooperation on clinical supporting solutions. We sincerely invite medical device distributors and OEM partners nationwide to negotiate and cooperate. You may leave a message in the background to obtain detailed cooperation materials, and we look forward to jointly exploring new industry development with you.