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A wearable bluetooth LE sensor for patient monitoring during MRI scans
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posted on 2023-06-09, 03:43 authored by Christian Vogt, Jonas Reber, Daniel Waltisberg, Lars Büthe, Josip Marjanovic, Niko Munzenrieder, Klaas P Pruessmann, Gerhard TrösterThis paper presents a working prototype of a wearable patient monitoring device capable of recording the heart rate, blood oxygen saturation, surface temperature and humidity during an magnetic resonance imaging (MRI) experiment. The measured values are transmitted via Bluetooth low energy (LE) and displayed in real time on a smartphone on the outside of the MRI room. During 7 MRI image acquisitions of at least 1 min and a total duration of 25 min no Bluetooth data packets were lost. The raw measurements of the light intensity for the photoplethysmogram based heart rate measurement shows an increased noise floor by 50 LSB (least significant bit) during the MRI operation, whereas the temperature and humidity readings are unaffected. The device itself creates a magnetic resonance (MR) signal loss with a radius of 14 mm around the device surface and shows no significant increase in image noise of an acquired MRI image due to its radio frequency activity. This enables continuous and unobtrusive patient monitoring during MRI scans.
History
Publication status
- Published
File Version
- Published version
External DOI
Page range
4975-4978Presentation Type
- paper
Event name
IEEE 38th Annual International Conference of the Engineering in Medicine and Biology Society (EMBC), 2016Event location
Orlando, Florida, USAEvent type
conferenceEvent date
August 16-20th 2016Book title
2016 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)Department affiliated with
- Engineering and Design Publications
Research groups affiliated with
- Sensor Technology Research Centre Publications
Notes
ISBN: 9781457702204Full text available
- No
Peer reviewed?
- Yes
Legacy Posted Date
2016-10-25First Compliant Deposit (FCD) Date
2016-10-25Usage metrics
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