Department of Biosensors and Processing of Biomedical Signals, Faculty of Biomedical Engineering, Silesian University of Technology, Roosevelta 40, 41-800 Zabrze, Poland.
Sensors (Basel). 2020 Nov 22;20(22):6675. doi: 10.3390/s20226675.
Gyrocardiography (GCG) is a non-invasive technique of analyzing cardiac vibrations by a MEMS (microelectromechanical system) gyroscope placed on a chest wall. Although its history is short in comparison with seismocardiography (SCG) and electrocardiography (ECG), GCG becomes a technique which may provide additional insight into the mechanical aspects of the cardiac cycle. In this review, we describe the summary of the history, definition, measurements, waveform description and applications of gyrocardiography. The review was conducted on about 55 works analyzed between November 2016 and September 2020. The aim of this literature review was to summarize the current state of knowledge in gyrocardiography, especially the definition, waveform description, the physiological and physical sources of the signal and its applications. Based on the analyzed works, we present the definition of GCG as a technique for registration and analysis of rotational component of local cardiac vibrations, waveform annotation, several applications of the gyrocardiography, including, heart rate estimation, heart rate variability analysis, hemodynamics analysis, and classification of various cardiac diseases.
旋心动图（GCG）是一种通过放置在胸壁上的微机电系统（MEMS）陀螺仪分析心脏振动的非侵入性技术。尽管与地震心动图（SCG）和心电图（ECG）相比，它的历史还很短，但 GCG 已成为一种可以提供对心脏周期机械方面的更多见解的技术。在这篇综述中，我们描述了旋心动图的历史、定义、测量、波形描述和应用的概述。该综述是在 2016 年 11 月至 2020 年 9 月之间分析的约 55 项工作的基础上进行的。本文献综述的目的是总结旋心动图的现有知识状态，特别是信号的定义、波形描述、生理和物理来源及其应用。根据分析的工作，我们将 GCG 的定义为一种用于注册和分析局部心脏振动的旋转分量、波形注释的技术，以及旋心动图的几个应用，包括心率估计、心率变异性分析、血液动力学分析和各种心脏疾病的分类。
