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Abstract #2436

A Virtual Reality System for Neurosurgery: Integrated Brain Tumor with Peri-Tumoral Neuroanatomy

Chun-Yi Lo1, Wan-Yuo Guo2, Kun-Hsien Chou3, Ching-Po Lin1

1Institute of Biomedical Imaging and Radiological Sciences, National Yang Ming University, Taipei, Taiwan; 2Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan; 3Institute of Biomedical Engineering, National Yang Ming University, Taipei, Taiwan

A virtual reality environment for integrating neuroanatomy was developed for clarify the relationship among tumor mass and peri-tumoral microstructures for facilitating neurosurgical trajectory design and optimizing therapeutic outcome. Brain tumor and edema were segmented manually and reconstructed into 3D display. Fiber tracking was carried out via the Fiber Assignment by Continuous Tracking algorithm with fractional anisotropy threshold of 0.2 and angular limitation of 60 degree. The 3D stereo image was projected on the non-depolarizing screen by two projectors with polarizing filter. Therefore, the viewings of the users right and left eyes would be slightly different and the stereo image would be produced from the users viewpoint with 3D glasses.