| Attenuation map estimation with SPECT emission data only. | |
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MedLine Citation:
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PMID: 20148196 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Quantitative SPECT can be well achieved if photon attenuation is taken into account in the reconstruction process. Using a transmission scan is a common approach. A dramatic simplification could be made if the attenuation map could be obtained from the emission data. In this paper, we propose a new method to estimate the attenuation map using the data consistency conditions of the attenuated Radon transform. It is based on deriving boundaries of the constant regions of the true attenuation map using an iterative algorithm. This new method is tested by Monte Carlo simulations with the attenuation and scattering effects. |
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Authors:
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Yan Yan; Gengsheng Lawrence Zeng |
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Publication Detail:
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Type: JOURNAL ARTICLE |
Journal Detail:
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Title: International journal of imaging systems and technology Volume: 19 ISSN: 0899-9457 ISO Abbreviation: - Publication Date: 2009 Sep |
Date Detail:
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Created Date: 2010-2-11 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9883966 Medline TA: Int J Imaging Syst Technol Country: - |
Other Details:
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Languages: ENG Pagination: 271 Citation Subset: - |
Affiliation:
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Department of Physics, University of Utah, Salt Lake City, Utah, 84108, USA. |
Export Citation:
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Descriptor/Qualifier:
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| Grant Support | |
ID/Acronym/Agency:
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R21 EB006830-02//NIBIB NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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