Departmental Bulletin Paper 長時間心電図から得られる指標群に基づく突然死のリスク評価 -T 波オルタナンスと QT-RR 相関性によるリスク評価-

笠原, 啓祐

57pp.1 - 5 , 2016-03-24 , 法政大学大学院理工学・工学研究科
This paper proposes a new method of sudden cardiac death risk assessment based on 24 hour three-lead ECG recording. The use of the long term ECG recording has two advantages than conventional riskassessment by ECG recordings taken in the examination lab, i.e. the method will have more chance to detect abnormality and the data are corrected in the natural daily activity. The method combines T-wave alternans and QT-RR interval co-variability yielding better classification accuracy compared to that achieved by the single use of the indices. Data analysis using 11 high and 13 low-risk patients and 25 control subjects revealed that the proposed method classified three categories with high average sensitivity and specificity of 82 % and 93% respectively. Keywords : sudden cardiac death, ECG, T-wave alternans, QT-RR interval, co-variability, sensitivity, specificity,

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