Key result
A microprocessor-based analyzer was developed to process high-frequency electrocardiograms with a 500 Hz signal bandwidth, enabling QRS isolation, derivative computation, and time base dilation.
Describes the technical development of a high-frequency ECG analyzer capable of processing signals up to 500 Hz for enhanced QRS complex analysis.
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May support lab-based high-frequency ECG research; leaves open clinical validation before practice adoption.
We have developed a microprocessor-based analyzer for processing the high-frequency electrocardiogram. It has a signal band-width of 500 Hz, five times that of the standard clinical ECG. The device is programmed to isolate QRS complexes, to compute their first derivatives, and to dilate the time base so that the high frequency ECG's and their derivatives can be recorded on a restricted-bandwidth hard copy device such as a strip chart recorder or ECG machine. Also, the analyzer interfaces directly to a laboratory computer system for additional signal processing.
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Ge et al. (1986) studied this question. Microprocessor-based high-frequency electrocardiogram analyzer was evaluated. A microprocessor-based analyzer was developed to process high-frequency electrocardiograms with a 500 Hz signal bandwidth, enabling QRS isolation, derivative computation, and time base dilation.
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