Detection of Viable Myocardium by Dobutamine Stress Tagging Magnetic Resonance Imaging With Three-Dimensional Analysis by Automatic Trace Method
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概要
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The present study attempted to detect the viability of myovardium by quantitative automatic 3-dimentional analysis of the improvement of regional wall motion using an magnetic resonance imaging (MRI) tagging method. Twenty-two subjects with ischemic heart disease who had abnormal wall motion on echocardiography at rest were enrolled. All patients underwent dobutamine stress echocardiography (DSE), coronary arteriography and left ventriculography. The results were compared with those of 7 normal volunteers. MRI studies were done with myocardial tagging using the spatial modulation of magnetization technique. Automatic tracing with an original program was performed, and wall motion was compared before and during dobutamine infusion. The evaluation of myocardial viability with MRI and echocardiography had similar results in 19 (86.4%) of the 22 patients; 20 were studied by positron emission tomography or thallium 201 single photon emission computed tomography for myocardial viability or studied for improvement of wall motion following coronary intervention. The sensitivity of dobutamine stress MRI (DSMRI) with tagging was 75.9% whereas that of DSE was 65.5%. The specificity of DSMRI was 85.7% (6/7) and that of DSE was 100% (7/7). The accuracy of DSMRI was 77.8% (28/36) and that of DSE 72.2% (26/36). DSMRI was shown to be superior to DSE in terms of evaluation of myocardial viability.
- 社団法人日本循環器学会の論文
- 2000-06-20
著者
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Watanabe Shigeru
The Japanese Society Of Ct Screening
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Watanabe Shigeru
Third Department Of Internal Medicine Chiba University School Of Medicine
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Miyazaki Yoshiya
Department Of Cardiology Chiba Emergency Medical Center
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Yokoyama Masaki
Department Of Cardiology Chiba Rosai Hospital
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Watanabe Satoshi
千葉大学 第3内科
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Watanabe Shigeru
The Third Department Of Internal Medicine Chiba University School Of Medicine
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MASUDA Yoshiaki
The Third Department of Internal Medicine, School of Medicine, Chiba University
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Masuda Yoshiaki
The Japanese Society Of Ct Screening
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Saito Isao
The Departmetnt of Internal Medicine, Yatsu Hoken Hospital
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Masuda Yoshiaki
The Third Clinical Department Of Internal Medicine Chiba University School Of Medicine
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Masuda Yoshiaki
3rd. Department Of Internal Medicine School Of Medicine Chiba University
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Masuda Yoshiaki
Third Department Of Internal Medicine Chiba University
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Masuda Yoshiaki
The Third Dept. Of Internal Medicine Chiba University School Of Medicine
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Watanabe Sigeru
Third Department Of Internal Medicine Chiba University School Of Medicine
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Watanabe Shigeru
The Third Department Of Internal Medicine Chiba University
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Saito Isao
The Departmetnt Of Internal Medicine Yatsu Hoken Hospital
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Matsuoka Yushi
The Third Department Of Internal Medicine Chiba University School Of Medicine
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Masuda Yoshiaki
The Third Department Of Internal Medicine Chiba University School Of Medicine Chiba
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Watanabe Shigeru
The Third Dept. Of Intern. Med. Chiba Univ. School Of Med.
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Watanabe Shigeru
Graduate School Of Medicine Chiba University
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Watanabe Shigeru
The Third Departments Of Internal Medicine
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Watanabe Shigeru
The Third Clinical Department Of Internal Medicine Chiba University School Of Medicine
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