摘要
目的改进用于心肌缺血无创检测的运动心电信号特征分析方法。方法研制一套改进的运动心电信号检测系统，提出单位时间ＳＴ 段面积（ＳＴＡ） 和ＳＴＡ 与相关心率（ＳＴＡ／ ＨＲ） 的斜率作为新特征参数的计算方法，同时还提出了减少运动信号采集中干扰噪声混入的措施。结果临床运动试验中采集到的１４ 例运动心电信号数据特征所进行的分析结果，验证了这些新参数计算的有效性，计算结果不仅与常规参数的计算基本一致，而且提高了运动心电信号特征参数计算的稳定性和可靠性。结论 这些新参数的提出为运动试验方法中的心电信号分析提供了更有效、可靠的检测手段，有望进一步得到临床应用。
Objective To improve the exercise ECG analysis for non invasively detection of myocardial ischemia. Method The newly developed measuring system of exercise ECG defines ST segment area and STA/HR slope as the new characteristic parameters,thus can sensitively detect myocardial ischemia. Some methods were proposed to reduce noise and artifacts for effective sampling of exercise ECG. Result 14 exercise ECG records were sampled and analyzed in clinical exercise test.It was found that the new parameters are very effective and sensitive to myocardial ischemia.The results show that the method is reliable and stable. Conclusion The method improves one of the evaluating indexes of exercise ECG analysis.It is quite promising for clinical application in future.
出处
《航天医学与医学工程》
CAS
CSCD
2000年第1期29-33,共5页
Space Medicine & Medical Engineering
关键词
运动心电信号
信号采集
心肌缺血
无创检测
anti G devices
medical evaluation
human centrifuges
general specification
