The Optimal Reconstruction Parameters by Scatter and Attenuation Corrections Using Multi-focus Collimator System in Thallium-201 Myocardial Perfusion SPECT Study
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- Shibutani Takayuki
- Department of Quantum Medical Technology, Faculty of Health Sciences, Kanazawa University
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- Onoguchi Masahisa
- Department of Quantum Medical Technology, Faculty of Health Sciences, Kanazawa University
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- Funayama Risa
- Department of Radiology, International University of Health and Welfare Atami Hospital
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- Nakajima Kenichi
- Department of Biotracer Medicine, Graduate School of Medical Science, Kanazawa University Hospital
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- Matsuo Shinro
- Department of Biotracer Medicine, Graduate School of Medical Science, Kanazawa University Hospital
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- Yoneyama Hiroto
- Department of Radiological Technology, Kanazawa University Hospital
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- Konishi Takahiro
- Department of Radiological Technology, Kanazawa University Hospital
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- Kinuya Seigo
- Department of Biotracer Medicine, Graduate School of Medical Science, Kanazawa University Hospital
Bibliographic Information
- Other Title
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- <sup>201</sup>Tl心筋 SPECTにおける多焦点コリメータを用いた散乱・減弱補正と画像再構成条件の最適化
- 臨床技術 ²⁰¹Tl心筋SPECTにおける多焦点コリメータを用いた散乱・減弱補正と画像再構成条件の最適化
- リンショウ ギジュツ ² ⁰ ¹ Tl シンキン SPECT ニ オケル タショウテン コリメータ オ モチイタ サンラン ・ ゲン ジャク ホセイ ト ガゾウ サイコウセイ ジョウケン ノ サイテキ カ
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Abstract
The aim of this study was to reveal the optimal reconstruction parameters of ordered subset conjugates gradient minimizer (OSCGM) by no correction (NC), attenuation correction (AC), and AC+scatter correction (ACSC) using IQ-single photon emission computed tomography (SPECT) system in thallium-201 myocardial perfusion SPECT. Myocardial phantom acquired two patterns, with or without defect. Myocardial images were performed 5-point scale visual score and quantitative evaluations using contrast, uptake, and uniformity about the subset and update (subset×iteration) of OSCGM and the full width at half maximum (FWHM) of Gaussian filter by three corrections. We decided on optimal reconstruction parameters of OSCGM by three corrections. The number of subsets to create suitable images were 3 or 5 for NC and AC, 2 or 3 for ACSC. The updates to create suitable images were 30 or 40 for NC, 40 or 60 for AC, and 30 for ACSC. Furthermore, the FWHM of Gaussian filters were 9.6 mm or 12 mm for NC and ACSC, 7.2 mm or 9.6 mm for AC. In conclusion, the following optimal reconstruction parameters of OSCGM were decided; NC: subset 5, iteration 8 and FWHM 9.6 mm, AC: subset 5, iteration 8 and FWHM 7.2 mm, ACSC: subset 3, iteration 10 and FWHM 9.6 mm.
Journal
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- Japanese Journal of Radiological Technology
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Japanese Journal of Radiological Technology 71 (11), 1103-1112, 2015
Japanese Society of Radiological Technology
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Details 詳細情報について
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- CRID
- 1390001206362534144
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- NII Article ID
- 130005109946
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- NII Book ID
- AN00197784
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- ISSN
- 18814883
- 03694305
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- NDL BIB ID
- 026954545
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- PubMed
- 26596202
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed