Cyber Technology, Inc.

Image Acquisition, Reconstruction, and Presentation


All renditions (C) Wolfram R. Jarisch, 2003



Historical Studies 1991 - 1993


Reconstruction from cone-beam projections of a bovine coronary cast (silicon with Thorium).
The projection data were provided by J. Richard Spears, MD.


This particular test is concerned with evaluating the ability to reconstruct a complex coronary tree with as few as 4 projective views.
Based on these results it appears that either more views or additional constraints on the nature of vessels (continuity) are needed to
reduce the effect of phantom artifacts.


The reconstruction was computed on an Intel 860 processor at CTI with a resolution of about 180-cubed voxels.
The surface renditions below were computed on a SUN station. Note: black surface patches are due to defects in the
rendition algorithm provided on that system and are not a result of the 3-D reconstruction.



bovine cast 4 views




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