Evaluation of Cardiac Contractility in Heart with Left Ventricular Hypertrophy by Using the Magnetic Resonance Tagging Technique.
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概要
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The cardiac contractility in human heart was investigated by analyzing the deformation of the left ventricular wall during systole, using a magnetic resonance tagging technique. The subjects were 10 normal humans, 8 patients with hypertrophic cardiomyopathy (HCM), and 7 patients with hypertensive heart disease (HHD). The circumferential strain at a short-axis section was employed as an index to evaluate cardiac contractility. The results showed that the circumferential strains in local regions of patients with HCM were significantly smaller compared with those in corresponding regions of normal humans, but the circumferential strains of patients with HHD were similar to those of normal humans in whole regions. This study may suggest that the circumferential strain could be an effective index for the quantitative evaluation of the cardiac contractility.
- 一般社団法人 日本生体医工学会の論文
一般社団法人 日本生体医工学会 | 論文
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