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.

中文翻译：

---

定义、历史、波形描述和应用回顾


陀螺心动图 (GCG) 是一种通过放置在胸壁上的 MEMS（微机电系统）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，其历史较短，但 GCG 已成为一种可以为心动周期的机械方面提供更多见解的技术。在这篇综述中，我们总结了心电图的历史、定义、测量、波形描述和应用。本综述对 2016 年 11 月至 2020 年 9 月期间分析的约 55 篇文献进行了综述。本次文献综述的目的是总结心电图知识的现状，特别是定义、波形描述、信号的生理和物理来源及其应用程序。基于分析的工作，我们提出了 GCG 的定义，作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、陀螺仪的几种应用的技术，包括心率估计、心率变异性分析、血流动力学分析、以及各种心脏病的分类。