A new approach to the diagnostic quality ambulatory ECG recordings

Electrocardiogram (ECG) monitoring and the P-QRS-T waveform and rhythmic analysis are essential for clinicians to understand the vital cardiac physiological functions of the subjects with cardiac problems or heavier cardiac load. This is becoming more significant as seniors are getting popular who often need clinical cardiovascular attention. We propose a new approach to ECG acquisition with the capability of recording, analyzing, and monitoring ECG and P-QRS-T waveform with the diagnostic quality during various activity states from resting to strenuous exercises without missing ECG signals. The approach is based on the digital technologies of pure digital medical amplifier (PDMA) featuring great input signal dynamic range (ISDR) and high immunity to various noises, as well as extensive use of digital filtering and parallel processing. The device can monitor ECG traces with up-to-moment P-QRS-T waveform measurements. It can be used as an all-in-one ECG device for diagnostic, monitoring, ambulatory, and stress testing purposes, and so has many new potential applications.