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

Fast transmission CT reconstruction for SPECT using a block-iterative algorithm

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

2 Author(s)
Lalush, D.S. ; Dept. of Biomed. Eng., North Carolina Univ., Chapel Hill, NC, USA ; Tsui, B.M.W.

Presents an iterative transmission reconstruction algorithm based on principles used for block-iterative emission reconstruction. Filtered backprojection (FBP) is adequate for transmission CT image reconstruction under ideal conditions. In cases where insufficient count rates are obtained, FBP suffers from significant biases. The authors' block-iterative transmission algorithm is developed by analogy to ordered-subset emission CT algorithms. They show similarities between their algorithm and a previously-proposed Ordered-Subset Convex (OSC) algorithm. Under ideal conditions, the authors' block-iterative transmission algorithm generates estimates of attenuation line integrals that are not significantly different from those from FBP or OSC. In the case of very low count-rate data, their block-iterative algorithm produces line integral estimates that are less biased than those from FBP and nearly identical to those from OSC. The authors show that their algorithm is more computationally efficient than OSC. They conclude that their block-iterative method is a viable alternative to FBP and other iterative algorithms, especially under poor imaging conditions

Published in:

Nuclear Science, IEEE Transactions on  (Volume:47 ,  Issue: 3 )

Date of Publication:

Jun 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.