The Korean Journal of Nuclear Medicine (대한핵의학회지)
- Volume 23 Issue 2
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- Pages.175-181
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- 1989
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- 1225-6714(pISSN)
ROC Analysis of Visual Assessments Made in Gated Blood Pool Scans of Patients with Coronary Artery Disease
관상동맥질환에서 심장풀 스캔의 육안적 평가에 대한 ROC 분석
- Lee, Kyun-Han (Department of Internal Medicine, College of Medicine, Seoul National University) ;
- Choi, Yoon-Ho (Department of Internal Medicine, College of Medicine, Seoul National University) ;
- Lee, Bum-Woo (Department of Internal Medicine, College of Medicine, Seoul National University) ;
- Moon, Dae-Hyuk (Department of Internal Medicine, College of Medicine, Seoul National University) ;
- Koong, Sung-Soo (Department of Internal Medicine, College of Medicine, Seoul National University) ;
- Chung, June-Key (Department of Internal Medicine, College of Medicine, Seoul National University) ;
- Lee, Myung-Chul (Department of Internal Medicine, College of Medicine, Seoul National University) ;
- Koh, Chang-Soon (Department of Internal Medicine, College of Medicine, Seoul National University)
- 이경한 (서울대학교 의과대학 내과학교실) ;
- 최윤호 (서울대학교 의과대학 내과학교실) ;
- 이범우 (서울대학교 의과대학 내과학교실) ;
- 문대혁 (서울대학교 의과대학 내과학교실) ;
- 궁성수 (서울대학교 의과대학 내과학교실) ;
- 정준기 (서울대학교 의과대학 내과학교실) ;
- 이명철 (서울대학교 의과대학 내과학교실) ;
- 고창순 (서울대학교 의과대학 내과학교실)
- Published : 1989.11.13
Abstract
Visual assessment of regional wall motion abnormality (RWMA) by gated blood pol scan (GBPS) serves as an useful parameter in the diagnosis, functional evaluation, and follow up in various clinical settings, but are still subject to some inherent limitations. On important problem may be the interobserver as well as intraobsever variation that may well be present due to the subjective nature of the interpretations. This study was carried out to determine the reliability and reproducibility of visual assessments made in GBPSs, and to observe the degree to which the results would be influenced by observer variation. Fifty two patients with coronary heart disease had resting GBPS and contrast ventriculography within 4 days appall. Contrast ventriculography-showed normal wall motion in 6 patients and the remaining 46 had RWMA in one or more segments. The anterior and left anterolateral views of all 52 GBPSs were analyzed by three independent observers, who selected from 5 scales, their level of confidence that there was RWMA in that segment. Reciever operating characteristic (ROC) curves for each analysis was plotted and the area under the curve
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