BACKGROUND
The 3-dimensionally complex interplay of soft tissue, cartilaginous, and bony elements makes the mastery of nasal anatomy difficult. Conventional methods of learning nasal anatomy exist, but they often involve a steep learning curve. Computerized models and virtual reality applications have been used to facilitate teaching in a number of other complex anatomical regions, such as the human temporal bone and pelvic floor. We present a 3-dimensional (3-D) virtual reality model of the human nose.
METHODS
Human cadaveric axial cross-sectional (0.33-mm cuts) photographic data of the head and neck were used. With 460 digitized images, individual structures were traced and programmed to create a computerized polygonal model of the nose. Further refinements to this model were made using a number of specialized computer programs. This 3-D computer model of the nose was then programmed to operate as a virtual reality model.
RESULTS
Anatomically correct 3-D model of the nose was produced. High-resolution images of the "virtual nose" demonstrate the nasal septum, lower lateral cartilages, middle vault, bony dorsum, and other structural details of the nose. Also, the model can be combined with a separate virtual reality model of the face and its skin cover as well as the skull. The user can manipulate the model in space, examine 3-D anatomical relationships, and fade superficial structures to reveal deeper ones.
CONCLUSIONS
The virtual nose is a 3-D virtual reality model of the nose that is accurate and easy to use. It can be run on a personal computer or in a specialized virtual reality environment. It can serve as an effective teaching tool. As the first virtual reality model of the nose, it establishes a virtual reality platform from which future applications can be launched.
[1]
D. Toriumi,et al.
Rhinoplasty: Dissection Manual.
,
2001,
Annals of plastic surgery.
[2]
A Millman,et al.
Virtual temporal bone: Creation and application of a new computer-based teaching tool
,
2000,
Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery.
[3]
William Schroeder,et al.
The Visualization Toolkit: An Object-Oriented Approach to 3-D Graphics
,
1997
.
[4]
Maxine D. Brown,et al.
The ImmersaDesk and Infinity Wall projection-based virtual reality displays
,
1997,
COMG.
[5]
R. Oneal,et al.
Surgical anatomy of the nose
,
1999,
Otolaryngologic clinics of North America.
[6]
Akshay K. Singh,et al.
Deformable models in medical image analysis
,
1996,
Proceedings of the Workshop on Mathematical Methods in Biomedical Image Analysis.
[7]
F Dech,et al.
Radiological tele-immersion for next generation networks.
,
2000,
Studies in health technology and informatics.
[8]
K. Makielski,et al.
Surgical Anatomy of the Face
,
1993
.
[9]
T. E. Smith.
Surgical anatomy of the face.
,
1982,
Otolaryngologic clinics of North America.
[10]
Ray Evenhouse,et al.
The Virtual Pelvic Floor, a tele-immersive educational environment
,
1999,
AMIA.