Effects of inadequate low-pass filter application.
Some technical aspects in the ECG recording, although basic, are not well enough known. In this short communication we present two examples in which the low-pass filter attenuates or eliminates electrocardiographic signals which are important from the clinical point of view.
Servicios Sanitarios del Area de Salud de El Hierro, Valle del Golfo Health Center, Islas Canarias, España. jniebla72@hotmail.com
Javier
J
García-Niebla
Guillem
G
Serra-Autonell
D016477:Artifacts; D003936:Diagnosis, Computer-Assisted / Q000379:methods*; D004562:Electrocardiography / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted