三次元心磁図計測に基づくパワーマップの検討 : 健常者と心疾患患者の比較 : 生体磁気

概要

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We performed three-dimensional vector measurement of magnetocardiograms (MCGs) of normal subjects and subjects with hypertrophic cardiomyopathy (HCM) and myocardial infarction (MI), using three-dimensionals second-order gradiometer connected to 39-channel SQUIDs, which can detect magnetic field components perpendicular to the chest wall (Bz) and tangential to the chest wall (Bx,By) simultaneously. To compare the MCGs of normal subjects with those of patients, We analyzed MCG data for normal subjects using the ratio power. High correlation was obtained in MCG between normal subject and normal subject who was averaged, but data for patients HCM and MI displayed low correlation. The power map of a normal subject was compared with those of patients based on correlation coefficient. Results confirmed the difference in heart activity.
社団法人日本磁気学会の論文
2002-04-01