Ahmad, Anita and Salinet Jr., J. L. and Brown, P. and Tuan, J. H. and Stafford, P. and Ng, G. Andre and Schlindwein, F. S. (2011) QRS subtraction for atrial electrograms: flat, linear and spline interpolations. Medical and Biological Engineering and Computing, 49 (11). pp. 1321-1328. ISSN 0140-0118
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Official URL: http://dx.doi.org/10.1007/s11517-011-0829-9
Abstract
The main objective of this article is to implement and compare QRS subtraction techniques for intracardiac atrial electrograms based on using the surface ECG as a reference. A band-pass filter between 8 and 20 Hz followed by rectification, and then a low-pass filter at 6 Hz are used for QRS detection. QRS subtraction was performed using three different approaches: flat, linear and spline interpolations. QRS subtraction affects the power of the signals but it normally does not affect the dominant frequency. The average power of the atrial electrograms after QRS subtraction is significantly reduced for frequencies above 10 Hz.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | atrial electrograms, flat interpolation, linear interpolation, spline interpolation, subtraction |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Electrical Engineering |
| ID Code: | 29385 |
| Deposited By: | Yanti Mohd Shah |
| Deposited On: | 13 Mar 2013 02:18 |
| Last Modified: | 25 Mar 2019 08:07 |
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