Xiang Haiyan, Liu Yanyong, Qin Yufei, Cao Zhengtao, Guo Tao, Yu Mengsun
Technol Health Care. 2015;23 Suppl 2:S419-26. doi: 10.3233/THC-150978.
Korotkoff sounds have been used to measure systolic and diastolic arterial blood pressures noninvasively for over 100 years. However, most of the research concerning the Korotkoff sound were focused on the origin and frequency component analyzing the Korotkoff sound signal.
To show that the occurrence time of the Korotkoff sounds for each cardiac cycle demonstrates a characteristic value during the cuff deflating process of blood pressure measurement.
The Korotkoff sound delay time (KDT) decreases as the cuff pressure P deflates and KDT is a function of arterial transmural pressure. In the present research, an experiment system was established to explore the relationship between the KDT and the cuff pressure in different subjects.
A pilot experiment was conducted to obtain different subjects' KDTs and investigate the relationship between KDT and cuff pressure.
The relationship between KDT and invasive blood pressure was also studied and its potential application in detection of cardiovascular status was discussed.
100多年来，柯氏音一直被用于无创测量动脉收缩压和舒张压。然而，大多数关于柯氏音的研究都集中在柯氏音信号的起源和频率成分分析上。
证明在血压测量的袖带放气过程中，每个心动周期柯氏音的出现时间表现出一个特征值。
随着袖带压力P下降，柯氏音延迟时间（KDT）减小，且KDT是动脉跨壁压的函数。在本研究中，建立了一个实验系统来探究不同受试者的KDT与袖带压力之间的关系。
进行了一项初步实验以获取不同受试者的KDT，并研究KDT与袖带压力之间的关系。
还研究了KDT与有创血压之间的关系，并讨论了其在心血管状态检测中的潜在应用。
