利用光电容积描记法评估心血管系统功能研究进展

综述国内外有关光电容积描记法（photoplethysmography，PPG）的心血管系统功能评估作用，以期为PPG的医学应用及创新研究提供理论参考与借鉴。现阶段可从PPG信号中解析得到心率、心律、血压、容量等功能评价指标，PPG还可辅助识别诊断血压异常、糖尿病、心律失常、睡眠呼吸暂停综合征、早期缺血性休克等疾病。但PPG精确度与准确性、数据解释及标准化、波形分析和临床应用等方面仍存争议。PPG作为有效评估心血管系统功能状态与辅助诊断各类疾病的工具，已被广泛应用于医疗及科研领域并展现出重要价值，未来其有面朝高精度、多参数、非接触式、远程监护或医疗等方向多路发展的趋势。

Progress in Functional Assessment of the Cardiovascular System Using Photoplethysmography

The role of photoplethysmography (PPG) in the functional assessment of the cardiovascular system at home and abroad was summarized to provide theoretical references and lessons for the medical application of PPG and innovative research. Currently, functional assessment indices such as heart rate, heart rhythm, blood pressure, and volume can be analyzed from PPG signals, which can also assist in identifying and diagnosing abnormal blood pressure, diabetes mellitus, cardiac arrhythmia, sleep apnea syndrome, early ischemic shock, and other diseases. However, the accuracy and precision of PPG, data interpretation and standardization, waveform analysis, and clinical applications remain controversial. PPG has been widely used in medical and scientific research to effectively assess the functional status of the cardiovascular system and assist in diagnosing various diseases. In the future, PPG is expected to show a multipath development trend in high-precision, multi-parameter, noncontact, remote monitoring, and medical treatment.