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Proceedings Paper

Performance evaluation of image-intensifier-TV fluoroscopy systems
Author(s): Wilhelm J.M. van der Putten; Shawn Bouley
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Paper Abstract

Through use of a computer model and an aluminum low contrast phantom developed in-house, a method has been developed which is able to grade the imaging performance of fluoroscopy systems through use of a variable, K. This parameter was derived from Rose's model of image perception and is here used as a figure of merit to grade fluoroscopy systems. From Rose's model for an ideal system, a typical value of K for the perception of low contrast details should be between 3 and 7, assuming threshold vision by human observers. Thus, various fluoroscopy systems are graded with different values of K, with a lower value of K indicating better imaging performance of the system. A series of fluoroscopy systems have been graded where the best system produces a value in the low teens, while the poorest systems produce a value in the low twenties. Correlation with conventional image quality measurements is good and the method has the potential for automated assessment of image quality.

Paper Details

Date Published: 8 May 1995
PDF: 8 pages
Proc. SPIE 2432, Medical Imaging 1995: Physics of Medical Imaging, (8 May 1995); doi: 10.1117/12.208356
Show Author Affiliations
Wilhelm J.M. van der Putten, Manitoba Cancer Treatment and Research Foundation and Univ. of Manitoba (Canada)
Shawn Bouley, Manitoba Cancer Treatment and Research Foundation and Univ. of Manitoba (Canada)

Published in SPIE Proceedings Vol. 2432:
Medical Imaging 1995: Physics of Medical Imaging
Richard L. Van Metter; Jacob Beutel, Editor(s)

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