Virtual reality simulator helps teach surgery for brain cancer

September 20, 2012

A new virtual reality simulator—including sophisticated 3-D graphics and tactile feedback—provides neurosurgery trainees with valuable opportunities to practice essential skills and techniques for brain cancer surgery, according to a paper in the September issue of Neurosurgery, official journal of the Congress of Neurological Surgeons.

The , called "NeuroTouch," uses 3-D graphics and haptic () technology to provide a realistic look and feel for practice in performing common tasks in surgery. Lead author Sébastien Delorme, PhD, of the National Research Council Canada and colleagues believe the NeuroTouch system could enhance "acquisition and assessment of technical skills" for neurosurgeons in training.

System Simulates Common Neurosurgery Tasks and Tools

The NeuroTouch system was developed by a team of more than 50 experts from the National Research Council Canada, with input from surgeons at more than 20 Canadian . The goal was to design a simulation system to provide neurosurgical trainees with opportunities to practice basic surgical skills.

The NeuroTouch software produces 3-D graphics, simulating what the sees through the operating microscope during surgery—including detailed, lifelike renderings of , blood vessels, and tumors. The system also includes haptic tool manipulators, providing tactile feedback similar to what the surgeon would feel during surgery. The simulator runs on computers that, while powerful, are similar to those used to run popular games.

The researchers designed training tasks to simulate common neurosurgery procedures using the NeuroTouch. In one task, the surgeon is to remove brain tumor while leaving normal tissues intact, using two different suction devices. In this simulation, the system provides touch and to discriminate between healthy tissue and brain tumor.

In the other task, the surgeon must remove a vascularized (supplied with blood) tumor while controlling blood loss. The blood vessels and tissues look realistic, including normal pulsations. The vessels bleed when the surgeon applies a cutting tool and stop bleeding when he or she uses a simulated cautery tool.

Both tasks were developed using 3D reconstructions of magnetic resonance imaging scan data from actual patients. With further development, the system may be used not only to practice basic procedures, but even to allow neurosurgeons to simulate and practice actual operations, based on the patient's own MRI scan.

During the development process, the researchers received feedback through an advisory network of teaching hospitals. The 3-D visual graphics received high praise, although the tactile feedback system came in for more criticism. Surgeons testing the system also suggested improvements to the ergonomics of using the simulator.

Neurosurgical residency training programs are challenged to make the most of their resources while maximizing training opportunities for residents. About 90 percent of surgical training is received in the operating room, where residents learn procedures by assisting surgeons with hundreds of operations.

Medical simulators—similar to those used to train airline pilots—are increasingly viewed as a cost-effective complement to traditional surgical training. For example, a commercially available simulator has proven effective in helping trainees perform minimally invasive gallbladder surgery more rapidly, with a lower risk of patient injury.

The NeuroTouch system appears to be a promising tool for extending virtual reality technology to teaching common and important neurosurgery techniques. While it is not the first neurosurgical simulator, it provides key advances over previous systems, particularly in terms of providing real-time graphics and .

The next step will be to evaluate the new system in actual neurosurgical training programs. "First generation 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," according to Dr. Delorme and colleagues, and a new generation of NeuroTouch simulators is currently being deployed worldwide.

Explore further: 'Virtual operating room' to sharpen surgeons' smarts and skills

Related Stories

'Virtual operating room' to sharpen surgeons' smarts and skills

December 14, 2011
(Medical Xpress) -- Even for highly trained physicians and surgeons, there’s no teacher like experience.

Simulation technology allows users to safely practice phacoemulsification cataract surgery

May 29, 2012
Phacoemulsification cataract surgery is one of the most frequently performed eye surgeries in the United States, with 1.5 million procedures performed each year. It is also one of the most complex procedures to learn. A new, ...

Recommended for you

Burn victim saved by skin grafts from identical twin (Update)

November 23, 2017
A man doomed to die after suffering burns across 95 percent of his body was saved by skin transplants from his identical twin in a world-first operation, French doctors said Thursday.

Is a common shoulder surgery useless?

November 21, 2017
(HealthDay)—New research casts doubt on the true effectiveness of a common type of surgery used to ease shoulder pain.

Study shows electric bandages can fight biofilm infection, antimicrobial resistance

November 6, 2017
Researchers at The Ohio State University Wexner Medical Center have shown - for the first time - that special bandages using weak electric fields to disrupt bacterial biofilm infection can prevent infections, combat antibiotic ...

Obesity increases incidence, severity, costs of knee dislocations

November 3, 2017
A new study of more than 19,000 knee dislocation cases in the U.S. between 2000 and 2012 provides a painful indication of how the nation's obesity epidemic is changing the risk, severity and cost of a traumatic injury.

Defining optimal opioid pain medication prescription length following surgery

September 27, 2017
A new study led by researchers at the Center for Surgery and Public Health at Brigham and Women's Hospital analyzed opioid prescription data from the Department of Defense Military Health System Data Repository, identifying ...

Is older blood OK to use in a transfusion?

September 27, 2017
(HealthDay)—Using older red blood cells to give transfusions to critically ill patients doesn't appear to affect their risk of dying, Australian researchers report.

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.