Researchers at the University of Oklahoma, in partnership with Oklahoma-based startup Xironetic, are working on new technologies to improve neurosurgical procedures and training. According to OU News, Dr. David R. Miller from the Stephenson School of Biomedical Engineering is developing methods to visualize blood flow during brain surgery. Neurosurgeon Dr. Christopher Graffeo is leading the clinical testing phase of the technology, aiming to help prevent complications such as strokes.
Xironetic's IntraOpVSP device, which received FDA clearance in 2022, uses augmented reality to provide surgeons with 3D holographic overlays during procedures. Dr. Graffeo is currently testing the device in various clinical settings to evaluate its effectiveness and training potential. Dr. Jeff Potts, Xironetic’s Chief Technology Officer, highlighted one focus area—external ventricular drain (EVD) catheter placement—which is often done without visual guidance, increasing the risk of errors, especially in patients with abnormal anatomy.
Dr. Graffeo noted that although EVD placement is common, it is not without risks. Performing the procedure without visual aids can lead to complications such as bleeding or brain injury. While the overall complication rate is about 1%, the high frequency of the procedure makes even this rate significant.
Researchers are now working to combine Miller’s blood flow visualization technology with augmented reality. This integration aims to reduce risks in procedures like EVD placements. The team is seeking a National Institutes of Health (NIH) grant to support continued development and collaboration between the university and industry.
