Estimation of Cardiac Event Risk by Gated Myocardial Perfusion Imaging and Quantitative Scoring Methods Based on a Multi-Center J-ACCESS Database

• Nakajima Kenichi

  Department of Nuclear Medicine, Kanazawa University Hospital

• Matsuo Shinro

  Department of Nuclear Medicine, Kanazawa University Hospital

• Okuda Koichi

  Department of Nuclear Medicine, Kanazawa University Hospital

• Wakabayashi Hiroshi

  Department of Nuclear Medicine, Kanazawa University Hospital

• Tsukamoto Kazumasa

  Department of Environment and Occupational Health, Graduate School of Medicine, Toho University

• Nishimura Tsunehiko

  Department of Radiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine

抄録

Background: Myocardial perfusion imaging (MPI) has been used to estimate cardiac event risk. The aim of the present study is to achieve stable risk estimation based on perfusion scoring and a multi-center prognostic database. Methods and Results: Multivariate logistic regression analysis was performed to estimate cardiac event risk based on a J-ACCESS study. A stress-MPI was performed in 45 patients with coronary artery disease (CAD) and in 25 non-CAD patients. Perfusion defect scoring of summed stress score (SSS) was performed by 5 methods: (1) visual scoring; (2) automatic scoring of 3 short-axis and 1 vertical long-axis slices; (3) visual modification of Method 2; (4) automatic polar map scoring based on a Japanese multi-center database; and (5) visual modification of Method 4. Agreement of SSS between 2 observers was good (r=0.87-0.97). Agreement of estimated cardiac event risk between observers and among 5 methods was very good (r=0.99-1.00). Regarding diagnostic accuracy for CAD, Method 5 showed optimal diagnostic yields (sensitivity 84%, accuracy 77%). Conclusions: Estimation of cardiac event risk in conjunction with polar map segmentation and common normal databases resulted in stable risk values, and might be used for risk stratification in patients suspected of having CAD. (Circ J 2011; 75: 2417-2423)<br>

収録刊行物

• Circulation Journal

  Circulation Journal 75 (10), 2417-2423, 2011

  一般社団法人 日本循環器学会

キーワード

• Cardiac event risk
• Coronary artery disease
• Gated single-photon emission computed tomography
• Myocardial perfusion defect scores

詳細情報

• CRID: 1390282680078488320
• NII論文ID: 10029459560
• NII書誌ID: AA11591968
• DOI: 10.1253/circj.cj-11-0371
• ISSN: 13474820
• ISSN: 13469843
• Web Site: http://hdl.handle.net/2297/29465
• Web Site: http://www.jstage.jst.go.jp/article/circj/75/10/75_CJ-11-0371/_pdf
• Web Site: https://search.jamas.or.jp/link/ui/2012104016
• 本文言語コード: en
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