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The waveforms' alignment procedure in the averaging process for external recording of the His bundle activity

✍ Scribed by Shimon Abboud; Dror Sadeh

Publisher: Elsevier Science
Year: 1982
Tongue: English
Weight: 473 KB
Volume: 15
Category: Article
ISSN: 0010-4809
DOI: 10.1016/0010-4809(82)90056-8

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✦ Synopsis

Techniques for external recording of His bundle activity have been based on triggered signal averaging. We report on a new noninvasive method for recording the His potential, which employs cross-correlation function for the waveforms' alignment. This method is a frequency-domain analysis which uses the fast Fourier transform (FFT) for data processing. The processing is completely digital and is accomplished with a CDC-6600 computer. The method was tested by comparing the QRS-triggered signal averaging with the cross-correlation method, using simulated and recorded (real) ECG waveforms. It is concluded that the new method results in a more accurate signal and can be successfully applied in a clinical environment.

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