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Reduction of Collimator Correction Artefacts with Bayesian Reconstruction in Spect
Joint Authors
Kuikka, Jyrki T.
Kangasmaa, Tuija
Sohlberg, Antti
Source
International Journal of Molecular Imaging
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-12-01
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Poor resolution of single photon emission computed tomography (SPECT) has degraded its use in clinical practice.
Collimator correction has been shown to improve the reconstructed resolution, but the correction can generate ringing artefacts, which lower image quality.
This paper investigates whether Bayesian reconstruction methods could reduce these artefacts.
We have applied and tested three Bayesian reconstruction methods: smoothing prior, median root prior, and anatomical prior.
To demonstrate the efficacy of these methods, we compared their physical and visual performance both in phantom and patient studies.
All the three Bayesian reconstruction methods reduced the collimator correction artefacts.
Images reconstructed using the smoothing prior and the median root prior had slightly lower contrast than the standard reconstruction with collimator correction, whereas the anatomical prior produced images with good resolution and contrast.
American Psychological Association (APA)
Kangasmaa, Tuija& Sohlberg, Antti& Kuikka, Jyrki T.. 2010. Reduction of Collimator Correction Artefacts with Bayesian Reconstruction in Spect. International Journal of Molecular Imaging،Vol. 2011, no. 2011, pp.1-6.
https://search.emarefa.net/detail/BIM-486597
Modern Language Association (MLA)
Kangasmaa, Tuija…[et al.]. Reduction of Collimator Correction Artefacts with Bayesian Reconstruction in Spect. International Journal of Molecular Imaging No. 2011 (2011), pp.1-6.
https://search.emarefa.net/detail/BIM-486597
American Medical Association (AMA)
Kangasmaa, Tuija& Sohlberg, Antti& Kuikka, Jyrki T.. Reduction of Collimator Correction Artefacts with Bayesian Reconstruction in Spect. International Journal of Molecular Imaging. 2010. Vol. 2011, no. 2011, pp.1-6.
https://search.emarefa.net/detail/BIM-486597
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-486597