Mechanical Evaluation of Cardiac Contractility in Left Ventricle with Disease Using Magnetic Resonance Tagging Technique

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概要

• 論文の詳細を見る

• The cardiac contractility in human hearts was investigated by analyzing the deformations of the left ventricular myocardial walls during systole using a magnetic resonance tagging technique. Subjects were ten normal humans, eight patients with a hypertrophic cardiomyopathy (HCM) and seven patients with a hypertensive heart disease (HHD). The minimum principal strain, which describes the maximum contraction, was employed as an index for an evaluation of the cardiac contractility. The obtained results showed that the minimum principal strains in local regions of the patients with a HCM were significantly smaller compared with those in corresponding regions of the normal humans, while the minimum principal strains in whole regions of the patients with a HHD were similar to those in corresponding regions of the normal humans. This study suggests that to evaluate the cardiac contractility from a mechanical point of view is useful for a quantitative evaluation of heart diseases.

• 一般社団法人日本機械学会の論文
• 2000-12-15

著者

• INABA Tadashi

  Department of Mechanical Engineering, Faculty of Engineering, Mie University

• TOKUDA Masataka

  Department of Mechanical Engineering, Faculty of Engineering, Mie University

• Inaba T

  Department Of Mechanical Engineering Mie University

• Inaba Tadashi

  Department Of Mechanical Engineering Mie University

• Kawasaki Shingo

  Matsushita Memorial Hospital

• Tokuda Masataka

  Graduate School Of Engineering Mie University

• Tokuda Masataka

  Department Of Mechanical Engineering Mie University

• KAWASAKI Shingo

  School of Medicine, Gifu University

• KINOSADA Yasutomi

  Matsushita Memorial Hospital

• KINOSADA Yasutomi

  Department of Medical Informatics, Gifu University

• SAWAKI Yutaka

  Department of Mechanical Engineering, Mie University

• YAGI Kazuo

  Department of Mechanical Engineering, Mie University

• YAGI Kazuo

  Tokyo Metropolitan University of Health Science

• SAWAKI Yutaka

  Tokyo Metropolitan University of Health Science

• Yagi Kazuo

  Department Of Mechanical Engineering Mie University

• Yagi Kazuo

  Department Of Health Science Tokyo Metropolitan University Of Health Science University

• Sawaki Y

  Mie Univ. Tsu City

• Sawaki Yutaka

  Department Of Mech. Engineering Faculty Of Engineering Mie University

• Kawasaki Shingo

  School Of Medicine Gifu University

• Tokuda Masataka

  Department Of Mechanical Engineering Faculty Of Engineering Mie University

• Kinosada Yasutomi

  Department Of Biomedical Informatics Gifu University Graduate School Of Medicine

• TOKUDA Masataka

  Department of Hematology and Medical Oncology, Fujita Health University School of Medicine

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