Fully Immersive 3D AR Surgical Navigation System Shows High Accuracy in EVD Placement – Surgical Techniques

Picture: Cranium ghost exhibiting devices after insertion with VisAR (Photograph courtesy of Novarad)

Exterior ventricular drainage (EVD) is a standard neurosurgical process, though it has not modified considerably in 100 years. Bedside ICU ventriculostomy is a standard process fraught with errors, and insertion errors happen in roughly 40% of instances utilizing customary free-hand approach. Now, an augmented actuality surgical navigation system has demonstrated its potential to enhance the accuracy of EVD placement.

Researchers evaluated VisAR, a low-cost navigation expertise from Novarad Company (Provo, UT, USA) that makes use of an off-the-shelf Microsoft AR headset to revolutionize neurosurgical care. Novarad’s VisAR system reduces prices in comparison with different navigation applied sciences whereas enhancing workflow with a setup time of lower than two minutes, visually seen codes for fast recording, and a pre-operative planning system that enables trajectory and goal design.

The researchers created ghost fashions for his or her examine: a cranium ghost mannequin stuffed with ballistic gelatin, and a ghost mannequin that simulates the ventricular construction. Moreover, the flexibility of VisAR to flatten the educational curve and enhance the accuracy of surgeons of varied coaching ranges in a cadaver mannequin was examined. Measured accuracy was completed utilizing VisAR in each phantom and cadaver fashions. The researchers discovered that the effectiveness of Novarad’s VisAR augmented actuality steering system confirmed an angular error of 1.3° (near what might be achieved with a robotic and beneath the two° customary for stereotactic head navigation set by the FDA. This result’s considerably higher). greater than the usual care free approach. The assorted expertise ranges of the individuals didn’t have an effect on their success, demonstrating the potential of VisAR to speed up the coaching of physicians.

Novarad’s Founder and CEO, Dr. “VisAR supplies the precision of a robotic, the portability of a stethoscope, and the flexibility of human-assisted intelligence,” mentioned Wendell Gibby.

Neurooncology Assistant Professor of Neurosurgery Dr. “Total, these accuracy outcomes counsel {that a} surgeon inserting an EVD with AR expertise may have millimeter accuracy, which might be useful, particularly in instances with small or displaced ventricles,” mentioned Michael Karsy. and Cranium Base, College of Utah Well being.

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