Share Email Print
cover

Proceedings Paper

Optimizing imaging hardware for estimation tasks
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Medical imaging is often performed for the purpose of estimating a clinically relevant parameter. For example, cardiologists are interested in the cardiac ejection fraction, the fraction of blood pumped out of the left ventricle at the end of each heart cycle. Even when the primary task of the imaging system is tumor detection, physicians frequently want to estimate parameters of the tumor, e.g. size and location. For signal-detection tasks, we advocate that the performance of an ideal observer be employed as the figure of merit for optimizing medical imaging hardware. We have examined the use of the minimum variance of the ideal, unbiased estimator as a figure of merit for hardware optimization. The minimum variance of the ideal, unbiased estimator can be calculated using the Fisher information matrix. To account for both image noise and object variability, we used a statistical method known as Markov-chain Monte Carlo. We employed a lumpy object model and simulated imaging systems to compute our figures of merit. We have demonstrated the use of this method in comparing imaging systems for estimation tasks.

Paper Details

Date Published: 22 May 2003
PDF: 5 pages
Proc. SPIE 5034, Medical Imaging 2003: Image Perception, Observer Performance, and Technology Assessment, (22 May 2003); doi: 10.1117/12.480337
Show Author Affiliations
Matthew A. Kupinski, Optical Sciences Ctr./Univ. of Arizona (United States)
Univ. of Arizona (United States)
Eric Clarkson, Optical Sciences Ctr./Univ. of Arizona (United States)
Univ. of Arizona (United States)
Kevin Gross, Optical Sciences Ctr./Univ. of Arizona (United States)
John W. Hoppin, Univ. of Arizona (United States)


Published in SPIE Proceedings Vol. 5034:
Medical Imaging 2003: Image Perception, Observer Performance, and Technology Assessment
Dev P. Chakraborty; Elizabeth A. Krupinski, Editor(s)

© SPIE. Terms of Use
Back to Top