Абстракт

Objectives: The use of ultrasound in the diagnosis and treatment of scalp conditions and hair transplantation is indeed an exciting advancement in the field of aesthetic medicine and hair restoration. These advancements likely involve improved imaging techniques, such as ultrasound, to provide more accurate and non-invasive diagnostic information. Our team is exploring the use of ultrasound specifically on the scalp for diagnosing and preventing complications during hair transplantation. Introduction: In recent years there has been a clear advance in the diagnosis of diseases of the scalp and in the field of hair transplantation. Information about the use of ultrasound in this area is scarce and therefore research in the area of imaging is necessary. This application of ultrasound can provide valuable insights into the condition of the scalp, allowing for more precise and safer hair transplantation procedures. Our work aims to demonstrate that is necessary during procedure to have a safety margin during surgery. Materials / method: In ultrasound, the epidermis, dermis and subcutaneous layers reveal different densities between patients, with the epidermis in the frontal region being narrower than the occipital region and the distance from the epidermis to the periosteum approximately 4mm. The epidermal and dermal line is hyperechoic and the subcutaneous hypoechoic. In the background we have a line that corresponds to the bone margin and through echodoppler we are able to create a vascular map. Results: We show that the distance between the epidermis and the bone margin corresponds to 4.5 mm without tumescence, and the punch used corresponds to 4 mm in length. After the introduction of tumescence solution, the distance between the epidermis and the bone margin corresponds to 7.0 mm, that is, a safety margin of approximately 2.5 mm was created. Don't having a safety margin contributes to possible aggression both at the periosteum and subcutaneous level. Also we know that subcutaneously we have a vast vascular network and injections based on lidocaine and adrenaline can be dangerous. Conclusion: Dermatological doppler ultrasound is a non-invasive technique that allows the evaluation of scalp pathologies and the prevention of complications during hair transplantation. This diagnostic tool makes it possible to increase knowledge in the trichology area and, in the future, reduce the need for invasive tests such as scalp biopsy. In hair transplantation, it can be used during surgery, adding more safety to the procedure, optimizing the surgery and carrying out vascular mapping, also avoid intravascular injections and thus prevent future complications or intraoperative complications.