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An improved analytical reconstruction for gated cardiac SPECT based on intra-frame similarity

  • Northwestern Polytechnical University Xian
  • Air Force Medical University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In a method we proposed before, Karhune-Loève (KL) transform was used to de-correlate the inter-frame correlation before they are reconstructed. The drawback of this method is that the covariance matrix is estimated based on the assumption that all pixels along the time direction obey the similar time function, while it is not always comply with the situation. In this paper, we propose a potential refinement method for spatio-temporal reconstruction for gated cardiac SPECT. The gated cardiac SPECT frames are grouped into several groups according to their intra-frame similarity. Then the different KL transform strategies are applied to these groups. Experimental computer simulation results show that the approach may obtain better performance than the previous one.

Original languageEnglish
Title of host publicationICIEA 2007
Subtitle of host publication2007 Second IEEE Conference on Industrial Electronics and Applications
Pages283-287
Number of pages5
DOIs
StatePublished - 2007
Event2007 2nd IEEE Conference on Industrial Electronics and Applications, ICIEA 2007 - Harbin, China
Duration: May 23 2007May 25 2007

Publication series

NameICIEA 2007: 2007 Second IEEE Conference on Industrial Electronics and Applications

Conference

Conference2007 2nd IEEE Conference on Industrial Electronics and Applications, ICIEA 2007
Country/TerritoryChina
CityHarbin
Period05/23/0705/25/07

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