Cart (Loading....) | Create Account
Close category search window
 

Performance evaluation of a small field-of-view camera for myocardial perfusion SPECT using a channelized Hotelling observer

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

5 Author(s)
Sawyer, S.A. ; Dept. of Biomed. Eng., North Carolina Univ., Chapel Hill, NC, USA ; Frey, E.C. ; Gilland, K.L. ; Tsui, B.M.W.
more authors

This study compares the performance of cameras with small (20×20 cm) and standard (50×40 cm) fields-of-view for myocardial perfusion SPECT. Simulated data from four MCAT phantom anatomies (two male and two female) and 6 defect locations were used. Projection data were generated using an analytic projector that includes the effects of attenuation, scatter, and collimator-detector response. Poisson noise was simulated. For the small camera, the center-of-rotation (COR) was positioned both at the center of the heart and at 13 shifted positions resulting id different degrees of truncation. The noisy projection data were reconstructed using the filtered backprojection and iterative OS-FM algorithms with no compensation for image degrading effects. The channelized Hotelling Observer (CHO) was applied centered to the myocardial defect in the short-axis images. The rating data generated by the CHO were analyzed using receiver operating characteristics (ROC) methodology. The area under the ROC curve was used to compare the two cameras and the two reconstruction algorithms. If the heart is not truncated, the two cameras perform similarly with respect to the task of detecting myocardial perfusion defects. In cases where truncation is near the heart, the standard camera has better performance, and OS-FM improves defect detectability

Published in:

Nuclear Science Symposium Conference Record, 2000 IEEE  (Volume:3 )

Date of Conference:

2000

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.