DEMONSTRATION

Creation of QuickTime Virtual Reality (QTVR) Object Movies for the Study of Human Brain Anatomy

John C. Pearson, Gary L. Nieder, Lynn A. Wagner and Emalie Carson Wright State University School of Medicine

ABSTRACT:

The study of gross brain anatomy is a fundamental first step in the process of learning clinical neuroscience. A common approach to this task is to use of a combination of (1) whole brain specimens to study surface anatomy, (2) brain slices to study internal structure, and (3) brain dissections to examine the three-dimensionality of important structures such as the internal capsule and limbic system. This process traditionally occurs in the teaching laboratory where flat images from text or CD-ROM atlases serve as reference sources. This approach limits the students' 3-D object exposure to within the laboratory setting, and the flat atlas images provide limited views of the often complex neural structures. We propose that this learning process could be made more effective using virtual neurologic specimens that can be reviewed from unlimited angles by individual students in any learning situation. Consequently, we set out to create QTVR object movies of the human brain and distribute them from an Internet server for ubiquitous use throughout the educational environment.

Human brains were removed from donors and formalin fixed. The specimens were dissected as needed; mounted on a QTVR object rig and horizontal and/or vertical pan sequences were digitally photographed. Other brains were sectioned into 3-10 mm slices, which were photographed to make additional object movie sequences. Photo sequences were processed to make QTVR movies, resulting in either spinning 3D specimens or navigable sectional specimens. Where examination of image detail was important, photo sequences were processed into "Zoomify" streaming object movies. These movies provided a practical means of delivering very high-resolution images over the Internet. Brain QTVR movies are available on our web site <www.anatomy.wright.edu/qtvr>.

BENEFIT TO PARTICIPANTS ATTENDING SESSION:

Attendees will be able to view high resolution streaming VR object movies of whole and dissected brain specimens and brain slices over the Internet. They will also learn about special technical modifications required to produce QTVR object movies of nervous tissue specimens.

John C. Pearson
Department of Anatomy
Wright State University
School of Medicine
Dayton, OH 45435
Phone: 937-775-3212
Fax: 937-775-3391
Email: john.c.pearson@wright.edu
Website: www.anatomy.wright.edu

CO-AUTHORS:
Gary L. Nieder
Lynn A. Wagner
Emalie Carson
Department of Anatomy
Wright State University
School of Medicine
Dayton, OH 45435
Phone: 937-775-2547
Fax: 937-775-3391
Email: gary.nieder@wright.edu
Website: www.anatomy.wright.edu