The majority of neurosurgery procedures now use intraoperative neuro navigation. Recent advancements in Mixed Reality (MR) technology have made an effort to address the drawbacks of neuro navigation systems. We discuss our experiences using the HoloLens 2 for intra- and extra-axial tumours in neuro-oncology. Outcomes We provide our observations with respect to three patients who had tumour resections. We assessed the surgeon's skills and the precision of the overlay 3D image in tumour localization using conventional neuro navigation both before and after surgery. HoloLens 2 training and use for surgeons was quick and simple. For the three situations, the picture overlay procedure was rather simple. With a traditional neuro navigation system, registration in the prone position can be challenging, but HoloLens made this problem much easier to solve. Verdict: The authors believe that this system is a workable alternative technology for intraoperative viewing of neurosurgical disease, despite several limitations that were noted. To evaluate its accuracy and applicability across multiple surgical fields, additional research is being planned.
