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Science 26 October 1984:
Vol. 226. no. 4673, pp. 456 - 458
DOI: 10.1126/science.226.4673.456
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Articles

Noninvasive Three-Dimensional Computer Imaging of Matrix-Filled Fossil Skulls by High-Resolution Computed Tomography

GLENN C. CONROY 1 and MICHAEL W. VANNIER 2

1 Department of Anatomy and Neurobiology and Department of Anthropology, Washington University School of Medicine, St. Louis, Missouri 63110
2 Mallinckrodt Institute of Radiology, Washington University School of Medicine

A noninvasive computer imaging technique allows three-dimensional images of fossil skulls to be generated from two-dimensional serial computerized tomographic scan data. The computer programs can "dissect" the skull in different planes by making portions of it and any obstructing matrix transparent in order to reveal intracranial morphology. The computer image is geometrically precise so that linear distances, angles, areas, volumes, and evaluations of symmetry can be determined.

Submitted on March 2, 1984
Accepted on August 1, 1984


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