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NeuroTouch: A Physics-Based Virtual Simulator for Cranial Microneurosurgery Training

Delorme, Sébastien PhD*; Laroche, Denis MSc*; DiRaddo, Robert PhD*; F. Del Maestro, Rolando MD

doi: 10.1227/NEU.0b013e318249c744
Operative Technique
Press Release

BACKGROUND: A virtual reality neurosurgery simulator with haptic feedback may help in the training and assessment of technical skills requiring the use of tactile and visual cues.

OBJECTIVE: To develop a simulator for craniotomy-based procedures with haptic and graphics feedback for implementation by universities and hospitals in the neurosurgery training curriculum.

METHODS: NeuroTouch was developed by a team of more than 50 experts from the National Research Council Canada in collaboration with surgeons from more than 20 teaching hospitals across Canada. Its main components are a stereovision system, bimanual haptic tool manipulators, and a high-end computer. The simulation software engine runs 3 processes for computing graphics, haptics, and mechanics. Training tasks were built from magnetic resonance imaging scans of patients with brain tumors.

RESULTS: Two training tasks were implemented for practicing skills with 3 different surgical tools. In the tumor-debulking task, the objective is complete tumor removal without removing normal tissue, using the regular surgical aspirator (suction) and the ultrasonic aspirator. The objective of the tumor cauterization task is to remove a vascularized tumor with an aspirator while controlling blood loss using bipolar electrocautery.

CONCLUSION: NeuroTouch prototypes have been set up in 7 teaching hospitals across Canada, to be used for beta testing and validation and evaluated for integration in a neurosurgery training curriculum.

ABBREVIATIONS: DOF, degrees of freedom

*National Research Council Canada, Boucherville, Quebec, Canada

Brain Tumour Research Centre, Department of Neurosurgery and Neurology, Montreal Neurological Institute and Hospital, Montreal, Quebec, Canada

Correspondence: Sébastien Delorme, PhD, National Research Council Canada, 75 de Mortagne Blvd., Boucherville, QC, Canada J4B 6Y4. E-mail:

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Received June 29, 2011

Accepted December 21, 2011

Copyright © by the Congress of Neurological Surgeons