By Topic

Performance of a new iterative reconstruction algorithm for cardiac short-time single photon emission computed tomography: Preliminary results in an anthropomorphic cardiac phantom study

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
$33 $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

4 Author(s)
O. Zoccarato ; Nuclear Medicine Dept, Salvatore Maugeri Foundation Scientific Institute of Veruno, (NO), Italy ; R. Campini ; C. Marcassa ; P. Calza

A new iterative reconstruction algorithms (WBR) has been recently proposed for cardiac SPECT. The WBR technology is based on an iterative technique, includes physical parameters such as LSF modelling, collimator parameters and variable radius orbit, all affecting SPECT resolution. Few data still exist on the comparison between filtered back-projection (FBP) and WBR. The aim of this study was to compare the performance of FBP and this new algorithm. An anthropomorphic cardiac phantom with cold insert simulating regional infarctions was used to compare FBP and WBR; SPECT were acquired at standard time/frame (ST) and half time/frame (FIT), with a standard isotope activity (SD) or with half activity (HD). The average FWHM of the simulated infarction of the cardiac phantom of SD-HT (65.7deg) and HD-ST (57.5deg) WBR SPECT were comparable to that of SD-ST FBP SPECT (65.3deg). However, regional differences were observed. The new reconstruction algorithm, applied to a cardiac SPECT acquisition, allows either for short time SPECT acquisitions or studies employing a reduced isotope activity. The former allows for an increased patient throughput and optimization of resources. The latter modality would also allow for a significant reduction in patients' as well as operators' radiation exposure.

Published in:

2008 Computers in Cardiology

Date of Conference:

14-17 Sept. 2008