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Contact-free sensor signals as a new digital biomarker for cardiovascular disease: chances and challenges
Journal article

Contact-free sensor signals as a new digital biomarker for cardiovascular disease: chances and challenges

  • Saner, Hugo Department of Preventive Cardiology, University Hospital Bern, Inselspital, Freiburgstrasse 18, CH 3010 Bern, Switzerland
  • Knobel, Samuel Elia Johannes ARTORG Center for Biomedical Engineering Research, University of Bern, Murtenstrasse 50, CH 3008 Bern, Switzerland
  • Schuetz, Narayan ARTORG Center for Biomedical Engineering Research, University of Bern, Murtenstrasse 50, CH 3008 Bern, Switzerland
  • Nef, Tobias Department of Neurology, University Hospital Bern, Inselspital, Freiburgstrasse 18, CH 3010 Bern, Switzerland
  • 2020-11-27
Published in:
  • European Heart Journal - Digital Health. - Oxford University Press (OUP). - 2020, vol. 1, no. 1, p. 30-39
English Abstract
Multiple sensor systems are used to monitor physiological parameters, activities of daily living and behaviour. Digital biomarkers can be extracted and used as indicators for health and disease. Signal acquisition is either by object sensors, wearable sensors, or contact-free sensors including cameras, pressure sensors, non-contact capacitively coupled electrocardiogram (cECG), radar, and passive infrared motion sensors. This review summarizes contemporary knowledge of the use of contact-free sensors for patients with cardiovascular disease and healthy subjects following the PRISMA declaration. Chances and challenges are discussed. Thirty-six publications were rated to be of medium (31) or high (5) relevance. Results are best for monitoring of heart rate and heart rate variability using cardiac vibration, facial camera, or cECG; for respiration using cardiac vibration, cECG, or camera; and for sleep using ballistocardiography. Early results from radar sensors to monitor vital signs are promising. Contact-free sensors are little invasive, well accepted and suitable for long-term monitoring in particular in patient’s homes. A major problem are motion artefacts. Results from long-term use in larger patient cohorts are still lacking, but the technology is about to emerge the market and we can expect to see more clinical results in the near future.
Language
  • English
Open access status
hybrid
Identifiers
Persistent URL
https://sonar.ch/global/documents/5902
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