Last Updated on September 16, 2022 by pg@petergamma.org
Why are expensive ECG devices like the AR12plus Holter monitor ECG and the Adinstruments Equivital EQ 02 as we would suppose not highly accurate?
With EEG devices, there are algorithms available to remove motion artifacts, as this demo shows:
A user from the EEGLAB mailing list wrote us, that also the AAR plug-in for EEGLAB works great to remove EEG motion artifacts:
https://germangh.github.io/eeglab_plugin_aar/
Are there also algorithms available to remove ECG motion artifacts?
On the website of g.tec medical it can be found that the NAUTILUS PRO FLEXIBLE can record artifact-free EEG signals from the headset. In the following paper in PLOS ONE:
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0217288
the authors use a Nautilus ECG reference device to test the accuracy of the Polar OH1 sensor. The authors concluded, that the Polar OH1 is so accurate, that it can be used instead of an ECG device for moderate and high intensity physical activities.
Do g.tec devices also offer to record motion artifact free ECG signals? We asked the g.tec medical support:
«Unfortunately, we know of no manufacturer who can manage that…»
On the datasheet of the Adinstrumens Equivital it says, that the device is noise and motion artifact free:
https://m-cdn.adinstruments.com/brochures/ADINSTRUMENTS_EQUIVITAL_BROCHURE.pdf
But a technical Report of the US Army Research Institute of Medicine Environemental Medicine which compared the accuracy of a Adinstruments Equivial to a Polar H10 chest strap:
https://apps.dtic.mil/sti/pdfs/AD1154187.pdf
found, that the 90 USD chest strap Polar H10 is more accurate than the Adinstruments Equivital which costs more than 10 000 USD. Also the authors of a study of the Swiss federal Institute of Sports found, that a Polar H10 chest strap is more accurate than a 1700 USD Holter ECG monitor.
How can this be explained?
Comments are closed.