Tissue Characterization of Coronary Plaques and Assessment of Thickness of Fibrous Cap Using Integrated Backscatter Intravascular Ultrasound : Comparison With Histology and Optical Coherence Tomography
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概要
- 論文の詳細を見る
Background: The purpose of this study was to develop a new online integrated backscatter intravascular ultrasound (IB-IVUS) system and to validate its ability to measure fibrous cap thickness by comparing IB-IVUS images with those from optical coherence tomography (OCT). Methods and Results: Images were acquired from 125 segments of 26 coronary arteries obtained at autopsy from 11 cadavers. In the training study (n=30), 242 regions-of-interest on color-coded maps were compared with histology. In the validation study, 95 cross-sections were diagnosed by IB-IVUS and histology. In 24 patients with stable angina, 28 arterial cross-sections were imaged by IB-IVUS and OCT in vivo. In the training study, cutoff values of 39 decibels (dB) and 17dB were the optimal predictors of lipid pool/fibrosis and fibrosis/calcification, respectively, with 38-MHz mode; 42dB and 20dB, respectively, with 43-MHz mode. In the validation study, IB classified the fibrous, lipid-rich and fibrocalcific components with an accuracy of 92%, 91% and 95%, respectively. Agreement between the histological and IB-IVUS diagnoses was excellent (Cohens κ=0.83). There was a correlation between the fibrous cap thickness measured by IB-IVUS and OCT (r=0.74, P<0.001). Conclusions: The IB-IVUS system with improved resolution provides high diagnostic accuracy for the analysis of the tissue characteristics of coronary plaques, and enables estimation of the thickness of the fibrous cap in the clinical setting. (Circ J 2010; 74: 2641-2648)
- 社団法人 日本循環器学会の論文
- 2010-11-25
著者
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岡田 正彦
新潟大学大学院予防医療学分野
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岡田 正彦
Department Of Cardiology Gifu University Graduate School Of Medicine
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岡田 正彦
新潟大学医歯学総合病院検査部
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Kawasaki Masanori
Regeneration & Advanced Medical Science, Gifu University Graduate School of Medicine
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Ishihara Yoshiyuki
Regeneration & Advanced Medical Science, Gifu University Graduate School of Medicine
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Nishigaki Kazuhiko
Regeneration & Advanced Medical Science, Gifu University Graduate School of Medicine
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Takemura Genzou
Regeneration & Advanced Medical Science, Gifu University Graduate School of Medicine
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Minatoguchi Shinya
Regeneration & Advanced Medical Science, Gifu University Graduate School of Medicine
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Saio Masanao
Department of Immunopathology Gifu University Graduate School of Medicine
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Okubo Munenori
Regeneration and Advanced Medical Science, Gifu University Graduate School of Medicine
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Takami Tsuyoshi
Department of Immunopathology, Gifu University Graduate School of Medicine
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Takemura Genzou
岐阜大学 医学系研究科循環病態学
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Takemura Genzou
岐阜大学 医学部第二内科
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Okubo Munenori
Regeneration And Advanced Medical Science Gifu University Graduate School Of Medicine
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Nishigaki Kazuhiko
岐阜大学 医学系研究科循環病態学
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Nishigaki Kazuhiro
Department Of Cardiology Gifu University Graduate School Of Medicine
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Ishihara Yoshiyuki
Regeneration And Advanced Medical Science Gifu University Graduate School Of Medicine
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Okubo Munenori
岐阜大学 医学系研究科第二内科
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Okubo Munenori
Second Department Of Internal Medicine Gifu University Graduate School Of Medicine
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Minatoguchi Shinya
Department Of Cardiology Gifu University Graduate School Of Medicine
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Minatoguchi Shinya
岐阜大学 医学系研究科循環病態学
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Minatoguchi Shinya
岐阜大学 第2内科
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Minatoguchi Shinya
岐阜大学 医学部第二内科
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Minatoguchi Shinya
The 2nd Department Of Lnternal Medicine Gifu University School Of Medicine
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岡田 正彦
新潟大学 医学部 検査診断学講座
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Miyata Shusaku
岐阜大学 病態情報解析医学
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Tanaka Tsutomu
The 2nd Dept. Of Intern. Med. Gifu Univ. School Of Med. Gifu
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Takemura Genzo
Kyoto Women's University And Department Of Internal Medicine Kyoto University
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Tanaka Tsutomu
Second Department Of Internal Medicine Gifu University School Of Medicine
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岡田 正彦
新潟大学大学院医歯学総合研究科予防医療学分野
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Takaya Tadatake
Second Department Of Internal Medicine Gifu University School Of Medicine
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Okada Masayoshi
Division Of Pharmacology Department Of Molecular Genetics And Signal Transduction Research Course Fo
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Nagashima Kenshi
Department Of Cardiology Gifu University Graduate School Of Medicine
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Minatoguchi Shinya
Second Department Of Medicine Gifu University Graduate School Of Medicine
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Minatoguchi Shinya
Second Department Of Internal Medicine Gifu University School Of Medicine
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Kawasaki Masanori
Second Department Of Internal Medicine Gifu University School Of Medicine
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Takami Tsuyoshi
Department Of Crystalline Materials Science Nagoya University
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Takaya Tadatake
2nd Dept Of Int Med Gifu Univ
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Miyata Shusaku
Department Of Cardiology Gifu University Graduate School Of Medicine
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Takemura Genzou
Regeneration & Advanced Medical Science Gifu University Graduate School Of Medicine
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HATTORI Arihiro
Regeneration & Advanced Medical Science, Gifu University Graduate School of Medicine
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Okubo Munenori
Regeneration & Advanced Medical Science Gifu University Graduate School Of Medicine
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Hattori Arihiro
Regeneration & Advanced Medical Science Gifu University Graduate School Of Medicine
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