单位时间块熵在胎儿窘迫心率中的应用
Application of Unit Time Block Entropy to Fetal Distress Heart Rate
摘要：
近年来，心脏动力学的多时间尺度特征在区分健康和病理心脏系统方面受到了广泛关注。尽管胎儿心血管系统的结构特点，胎儿心率（FHR）显示多个时间尺度的特点，类似于成人心率由于其不同的振荡组织的自律性和它与其他神经控制器的相互作用。在本文中，我们调查的事件和时间尺度特征的正常和两个病理胎儿心率组的帮助下，新的措施，称为单位时间块熵（UTBE），它近似的熵在每个事件和时间尺度的基础上符号动力学。该方法使我们能够同时匹配测量时间和字之间的胎儿心率数据集。我们发现，在小事件尺度和大时间尺度上，正常胎儿和两个病理胎儿是完全不同的。我们还发现在大事件尺度和小时间尺度下，推定窘迫胎儿和酸中毒窘迫胎儿有明显的区别。
英文摘要：
Recently, multiple time scale characteristics of heart dynamics have received much attention for distinguishing healthy and pathologic cardiac systems. Despite structural peculiarities of the fetal cardiovascular system, the fetal heart rate(FHR) displays multiple time scale characteristics similar to the adult heart rate due to the autorhythmicity of its different oscillatory tissues and its interaction with other neural controllers. In this paper, we investigate the event and time scale characteristics of the normal and two pathologic fetal heart rate groups with the help of the new measure, called the Unit Time Block Entropy(UTBE), which approximates the entropy at each event and time scale based on symbolic dynamics. This method enables us to match the measurement time and the number of words between fetal heart rate data sets simultaneously. We find that in the small event scale and the large time scale, the normal fetus and the two pathologic fetus are completely distinguished. We also find that in the large event scale and the small time scale, the presumed distress fetus and the acidotic distress fetus are significantly distinguished.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
