Overview of Methods for Imposition of a 3D Model on a Patient Using Augmented Reality in Surgery

Modern methods of visualization in surgery are increasingly focused on the use of augmented and mixed reality, where one of the key devices is the HoloLens 2 headset from Microsoft. Medzhital LLC has developed a system that allows imposition of 3D models of pathologies on the patient’s body with an accuracy of 1–2 mm using HoloLens 2. The article describes invasive and non-invasive methods for fixing AR markers on the patient’s body for hologram calibration. Among them: screw bone fastening, thermoplastic masks, polyamide frames, magnetic systems and pointers with QR codes. For each method, advantages and disadvantages related to accuracy, ease of use and sterilization needs are described.