Artikel
Does virtual reality help in constructing a more accurate mental representation than magnetic resonance images? A prospective study
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Veröffentlicht: | 16. September 2010 |
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Gliederung
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Objective: Progress in medical imaging and refined methods of surgery planning such as Virtual Reality (VR), call for an investigation of the acquisition of three-dimensional anatomical knowledge as a crucial goal of medical education. This study compared the efficacy to reconstruct a three-dimensional arrangement of objects that was either presented as real model, as magnetic resonance images (MRI), or as VR model.
Methods: From April 2005 to June 2006 two groups, experienced neurosurgeons and medical students in their fourth year of medical education, studied a three-dimensional arrangement of water-filled plastic objects either as a real model, using a VR workstation, or by examining the MRI images. They were then asked to reconstruct the model as accurately as possible. The reconstructed models were then compared to the respective original models.
Results: The most accurate reconstructions were achieved when the participants had memorized the real model. VR visualization produced larger errors, and reconstruction accuracy based on MRI scans was worst. Neurosurgeons did not perform better than students.
Conclusions: Our results show that, compared to standard MRI scans, the accuracy of mental representation does benefit from the stereoscopic rendering of the model, which has been built from sequential MRI scans. However, best results were achieved when learning from the original model. Thus, VR is beneficial and at the same time there is room for further improvement when trying to optimize the visual basis for anatomy training and surgery planning, both for expert as well as for novice surgeons.