Recording the heart beat of cattle using a gradiometer system of optically pumped magnetometers
Sutter, Jens U. and Lewis, Oliver and Robinson, Clive and McMahon, Anthony and Boyce, Robert and Bragg, Rachel and Macrae, Alastair and Orton, Jeffrey and Shah, Vishal and Ingleby, Stuart J. and Griffin, Paul F. and Riis, Erling (2020) Recording the heart beat of cattle using a gradiometer system of optically pumped magnetometers. Computers and Electronics in Agriculture, 177. 105651. ISSN 0168-1699 (https://doi.org/10.1016/j.compag.2020.105651)
Preview |
Text.
Filename: Sutter_etal_CEA_2020_Recording_the_heart_beat_of_cattle_using_a_gradiometer_system.pdf
Final Published Version License: Download (1MB)| Preview |
Abstract
Monitoring of heart rate has the potential to provide excellent data for the remote monitoring of animals, and heart rate has been associated with stress, pyrexia, pain and illness in animals. However monitoring of heart rate in domesticated animals is difficult as it entails the restraint of the animal (which may in turn affect heart rate), and the application of complex monitoring equipment that is either invasive or not practical to implement under commercial farm conditions. Therefore accurate non-invasive automated remote monitoring of heart rate has not been possible in domesticated animals. Biomagnetism associated with muscle and nerve action provides a promising emerging field in medical sensing, but it is currently confined to magnetically-shielded clinical environments. In this study, we use biomagnetic sensing on commercial dairy cattle under farm conditions as a model system to show proof-of-principle for non-contact magnetocardiography (MCG) outside a controlled laboratory environment. By arranging magnetometers in a differential set-up and using purpose-built low-noise electronics, we are able to suppress common mode noise and successfully record the heart rate, the heart beat intervals and the heart beat amplitude. Comparing the MCG signal with simultaneous data recorded using a conventional electrocardiogram (ECG) allowed alignment of the two signals, and was able to match features of the ECG including the P-wave, the QRS complex and the T-wave. This study has shown the potential for MCG to be developed as a non-contact method for the assessment of heart rate and other cardiac attributes in adult dairy cattle. Whilst this study using an animal model showed the capabilities of un-shielded MCG, these techniques also suggest potentially exciting opportunities in human cardiac medicine outside hospital environments.
ORCID iDs
Sutter, Jens U. ORCID: https://orcid.org/0000-0002-3782-6338, Lewis, Oliver, Robinson, Clive, McMahon, Anthony, Boyce, Robert, Bragg, Rachel, Macrae, Alastair, Orton, Jeffrey, Shah, Vishal, Ingleby, Stuart J. ORCID: https://orcid.org/0000-0001-7473-9949, Griffin, Paul F. ORCID: https://orcid.org/0000-0002-0134-7554 and Riis, Erling ORCID: https://orcid.org/0000-0002-3225-5302;-
-
Item type: Article ID code: 73569 Dates: DateEvent31 October 2020Published7 August 2020Published Online19 July 2020AcceptedSubjects: Science > Mathematics > Electronic computers. Computer science
AgricultureDepartment: Faculty of Science > Computer and Information Sciences
Faculty of Science > Physics
Strategic Research Themes > Ocean, Air and SpaceDepositing user: Pure Administrator Date deposited: 12 Aug 2020 13:03 Last modified: 12 Dec 2024 10:09 URI: https://strathprints.strath.ac.uk/id/eprint/73569