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Radiology, Vol 115, 455-458, Copyright © 1975 by Radiological Society of North America

ARTICLES

Analysis of errors in three-dimensional reconstruction of radium implants from stereo radiographs

LT Fitzgerald and W Mauderli

The present method of steroe shift for three-dimensional (3-D) reconstruction of radium implants has been found to produce displacement errors. Analysis shows that the maximum displacement error decreases as the shift (S) increases with fixed focal spot-film distance (H), while conversely for a fixed shift distance the maximum displacement error with increased focal spot-film distance. The authors suggest that sufficiently accurate 3-D reconstruction may be achieved when H greater than or equal to 100 cm and H/S less than 2.




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RADIOLOGY RADIOGRAPHICS RSNA JOURNALS ONLINE
Copyright © 1975 by the Radiological Society of North America.