Chinese Journal of Tissue Engineering Research ›› 2012, Vol. 16 ›› Issue (22): 4088-4091.doi: 10.3969/j.issn.1673-8225.2012.22.023

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Educational value of virtual reality skill in the surgical anatomy of petrous bone

Zhao Ya-qun, Tang Ke, Zhou Jing-an   

  1. Department of Neurosurgery, the 309 Hospital of Chinese PLA, Beijing  100091, China
  • Received:2011-11-23 Revised:2012-02-20 Online:2012-05-27 Published:2012-05-27
  • About author:Zhao Ya-qun★, Master, Associate chief physician, Department of Neurosurgery, the 309 Hospital of Chinese PLA, Beijing 100091, China zhaoyaqun2@sina.com

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Abstract:

BACKGROUND: Surgical education assignment of petrous bone is difficult for the complexity of anatomic morphology and stereo architecture relationship. Merits including efficient, objective, and interactive exist in computed virtual reality technology, of which the development potential is enormous for the surgical education of prtrous bone.
OBJECTIVE: To evaluate the application value of virtual reality technique in the surgical education of petrous bone.
METHODS: The Dicom data of CT scan performed for one case without skull base disease was transferred to the virtual reality system to reconstruct three-dimensional image, and then, the images of structures in the osseous tubes and impressions of petrous bone were extracted to build three-dimensional anatomy model by using the software of image process. Forty volunteers were divided randomly into two groups with 20 members in each group respectively. The examined group had assignment of both textbook reading and image model observation. The control group had only task of textbook reading. Scoring about accuracy for written test of anatomy knowledge and marking of anatomic illustration was employed after 1 week and 2 weeks of study to evaluate the educational effect.
RESULTS AND CONCLUSION: Effect of three-dimensional visualization was well for petrous bone model. Testing was performed after 1 week study, the scores of written test and illustration marking in the examined group were higher than those in the control group. Significant difference existed in the score of written test and illustration marking between two groups (P < 0.05). After 2 weeks study, there was no significant difference in the score of written test between two groups (P > 0.05). However, the illustration marking score of examined group was significantly higher than that of control group, and there was significant difference of illustration marking score between two groups (P < 0.05). The virtual reality three-dimensional model has good advantages in the surgical education of petrous bone.

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