Wendt H, Kiyono K, Abry P, Hayano J, Watanabe E, Yamamoto Y
Annu Int Conf IEEE Eng Med Biol Soc. 2014;2014:2809-12. doi: 10.1109/EMBC.2014.6944207.
A priori discrimination of high mortality risk amongst congestive heart failure patients constitutes an important clinical stake in cardiology and involves challenging analyses of the temporal dynamics of heart rate variability (HRV). The present contribution investigates the potential of a new multifractal formalism, constructed on wavelet p-leader coefficients, to help discrimination between survivor and non survivor patients. The formalism, applied to a high quality database of 108 patients collected in a Japanese hospital, enables to assess the existence of multifractal properties amongst congestive heart failure patients and to reveal significant differences in the multiscale properties of HRV between survivor and non survivor patients, for scales ranging from approximately 60 to 250 beats.
对充血性心力衰竭患者的高死亡风险进行先验判别是心脏病学中的一项重要临床任务，涉及对心率变异性（HRV）时间动态的具有挑战性的分析。本文探讨了一种基于小波p-先导系数构建的新多重分形形式主义在帮助区分存活患者和非存活患者方面的潜力。该形式主义应用于日本一家医院收集的108例患者的高质量数据库，能够评估充血性心力衰竭患者中多重分形特性的存在，并揭示存活患者和非存活患者之间HRV多尺度特性的显著差异，尺度范围约为60至250次心跳。
