8 May 1995 Performance evaluation of image-intensifier-TV fluoroscopy systems
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Proceedings Volume 2432, Medical Imaging 1995: Physics of Medical Imaging; (1995); doi: 10.1117/12.208356
Event: Medical Imaging 1995, 1995, San Diego, CA, United States
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.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Wilhelm J.M. van der Putten, Shawn Bouley, "Performance evaluation of image-intensifier-TV fluoroscopy systems", Proc. SPIE 2432, Medical Imaging 1995: Physics of Medical Imaging, (8 May 1995); doi: 10.1117/12.208356; http://dx.doi.org/10.1117/12.208356
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KEYWORDS
Imaging systems

Fluoroscopy

X-rays

Systems modeling

Computing systems

Image intensifiers

Image quality

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