TY - CONF A1 - Güldenring, Daniel A1 - Finlay, Dewar D. A1 - Kennedy, Alan A1 - Bond, Raymond R. A1 - Jennings, Michael R. A1 - McLaughlin, James D. A2 - Pickett, Christine T1 - The Effects of 40 Hz Low-Pass Filtering on the Magnitude of the Spatial Ventricular Gradient T2 - Computers in Cardiology (CinC) N2 - The magnitude of the spatial ventricular gradient (MSVG) is an attractive parameter in electrocardiogram (ECG)monitoring applications. The MSVG is most commonlyobtained from150 Hz low-pass filtered resting ECGs. However, monitoring applications typically utilize 40 Hz low-pass filtered ECG data. The extend to which the value of the MSVG is affected by the utilization of 40 Hz low-pass monitoring ECG filters over the commonly used 150 Hz low-pass resting ECG filters has not previously been reported. The aim of this research was to quantify the differences between MSVG values computed using 40 Hz low-pass filtered ECG data (MSVG40) and 150 Hz low-pass filtered ECG data (MSVG150). The differences between the MSVG40 and the MSVG150 were quantified as systematic error (mean difference) and random error (span of Bland-Altman 95% limits of agreement) using a study population of 726 subjects. The systematic error was found to be 0.013 mV ms [95% confidence interval: 0.008 mV ms to 0.018 mV ms]. The random error was quantified as 0.282 mV ms [95% confidence interval: 0.266 mV ms to 0.298 mV ms]. Our findings suggest that it is possible to record accurate MSVG values using 40 Hz low-pass filtered ECG data. Y1 - 2019 UR - https://opus4.kobv.de/opus4-hs-kempten/frontdoor/index/index/docId/640 SN - 9781728159423 SN - 2325-887X VL - 45 PB - IEEE CY - Piscataway ER -