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Literature DB >> 18574315

Acceleration of Monte Carlo-based scatter compensation for cardiac SPECT.

Abstract

Single proton emission computed tomography (SPECT) images are degraded by photon scatter making scatter compensation essential for accurate reconstruction. Reconstruction-based scatter compensation with Monte Carlo (MC) modelling of scatter shows promise for accurate scatter correction, but it is normally hampered by long computation times. The aim of this work was to accelerate the MC-based scatter compensation using coarse grid and intermittent scatter modelling. The acceleration methods were compared to un-accelerated implementation using MC-simulated projection data of the mathematical cardiac torso (MCAT) phantom modelling (99m)Tc uptake and clinical myocardial perfusion studies. The results showed that when combined the acceleration methods reduced the reconstruction time for 10 ordered subset expectation maximization (OS-EM) iterations from 56 to 11 min without a significant reduction in image quality indicating that the coarse grid and intermittent scatter modelling are suitable for MC-based scatter compensation in cardiac SPECT.

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Year: 2008 PMID： 18574315 DOI： 10.1088/0031-9155/53/14/N02

Source DB: PubMed Journal: Phys Med Biol ISSN： 0031-9155 Impact factor: 3.609

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Cited

14 in total

1. Comparison of attenuation, dual-energy-window, and model-based scatter correction of low-count SPECT to 82Rb PET/CT quantified myocardial perfusion scores.

Authors: R Glenn Wells; Karen Soueidan; Rachel Timmins; Terrence D Ruddy
Journal: J Nucl Cardiol Date: 2013-06-05 Impact factor: 5.952

2. Dependence of left ventricular functional parameters on image acquisition time in cardiac-gated myocardial perfusion SPECT.

Authors: Matti J Kortelainen; Tuomas M Koivumäki; Marko J Vauhkonen; Mikko A Hakulinen
Journal: J Nucl Cardiol Date: 2015-06-06 Impact factor: 5.952

3. Extrastriatal binding of [¹²³I]FP-CIT in the thalamus and pons: gender and age dependencies assessed in a European multicentre database of healthy controls.

Authors: Walter Koch; Marcus Unterrainer; Guoming Xiong; Peter Bartenstein; Markus Diemling; Andrea Varrone; John C Dickson; Livia Tossici-Bolt; Terez Sera; Susanne Asenbaum; Jan Booij; Ozlem L Kapucu; Andreas Kluge; Morten Ziebell; Jacques Darcourt; Flavio Nobili; Marco Pagani; Swen Hesse; Thierry Vander Borght; Koen Van Laere; Klaus Tatsch; Christian la Fougère
Journal: Eur J Nucl Med Mol Imaging Date: 2014-05-08 Impact factor: 9.236

4. Quantitative simultaneous 111In∕99mTc SPECT-CT of osteomyelitis.

Authors: Morgan Cervo; Victor H Gerbaudo; Mi-Ae Park; Stephen C Moore
Journal: Med Phys Date: 2013-08 Impact factor: 4.071

5. Joint reconstruction of activity and attenuation map using LM SPECT emission data.

Authors: Abhinav K Jha; Eric Clarkson; Matthew A Kupinski; Harrison H Barrett
Journal: Proc SPIE Int Soc Opt Eng Date: 2013

6. Phantom and clinical evaluation of the effect of full Monte Carlo collimator modelling in post-SIRT yttrium-90 Bremsstrahlung SPECT imaging.

Authors: Charlotte A Porter; Kevin M Bradley; Eero T Hippeläinen; Matthew D Walker; Daniel R McGowan
Journal: EJNMMI Res Date: 2018-01-22 Impact factor: 3.138

10. Quantitative accuracy of (177)Lu SPECT reconstruction using different compensation methods: phantom and patient studies.

Authors: Eero Hippeläinen; Mikko Tenhunen; Hanna Mäenpää; Antti Sohlberg
Journal: EJNMMI Res Date: 2016-02-18 Impact factor: 3.138