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A new QRS detection algorithm based on the Hilbert transform

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4 Author(s)
D. S. Benitez ; Dept. of Instrum. & Anal. Sci., Univ. of Manchester Inst. of Sci. & Technol., UK ; P. A. Gaydecki ; A. Zaidi ; A. P. Fitzpatrick

A robust new algorithm for QRS defection using the properties of the Hilbert transform is proposed. The method allows R waves to be differentiated from large, peaked T and P waves with a high degree of accuracy and minimizes the problems associated with baseline drift, motion artifacts and muscular noise. The performance of the algorithm was tested using the records of the MIT-BIH Arrhythmia Database. Beat by beat comparison was performed according to the recommendation of the American National Standard for ambulatory ECG analyzers (ANSI/AAMI EC38-1998). A QRS detection rate of 99.64%, a sensitivity of 99.81% and a positive prediction of 99.83% was achieved against the MIT-BIH Arrhythmia database. The noise tolerance of the new proposed QRS detector was also tested using standard records from the MIT-BIH Noise Stress Test Database. The sensitivity of the detector remains about 94% even for signal-to-noise ratios (SNR) as low as 6 dB

Published in:

Computers in Cardiology 2000

Date of Conference: