A new approach to ballistocardiographic measurements using fibre Bragg grating-based sensors

• Autorzy: Dziuda Ł. , Skibniewski F. W.

Identyfikatory

DOI

10.1016/j.bbe.2014.02.001

• Języki publikacji: EN

Abstrakty

EN

A method for acquiring a ballistocardiographic (BCG) signal from the feet of a standing person and the back of a sitting or lying patient is described. The measurements are carried out using in-house constructed fibre-optic sensors interrogated with a commercially available system. The sensor head consists of a fibre Bragg grating (FBG) attached to an elastic board that is placed between the monitored person's body and a soft surface, enabling the board to deform in an unobstructed way. The body's movements, including the BCG component, exert pressure on the board and make it deform along with the attached FBG. The changes to the Bragg wavelength are proportional to the body's movement and a BCG signal can be extracted from the obtained recording. The measuring capabilities of the sensors were evaluated by compar- ing the heart rate (obtained on the basis of the BCG signal) with the reference signal registered by an ECG recorder. An RMS value of the relative error is below 1.8% and statistical analyses show a satisfactory reconstruction of measurements. Tests carried out in the MRIenvironment proved the method to be immune to strong electromagnetic fields. The presence of the sensor in an MRI scanner does not affect the quality of imaging.

Słowa kluczowe

EN

ballistocardiography (BCG); fibre Bragg grating (FBG) sensors; heart rate (HR); magnetic resonance imaging (MRI); mechanograms

PL

balistokardiografia; światłowodowa siatka Bragga; rytm serca; rezonans magnetyczny

• Wydawca: Nałęcz Institute of Biocybernetics and Biomedical Engineering of the Polish Academy of Sciences ; Elsevier
• Czasopismo: Biocybernetics and Biomedical Engineering
• Rocznik: 2014
• Tom: Vol. 34, no. 2
• Strony: 101--116
• Opis fizyczny: Bibliogr. 50 poz., rys., wykr.

Twórcy

autor

Dziuda Ł.

• Technical Department of Aeromedical Research and Flight Simulators, Military Institute of Aviation Medicine, ul. Zygmunta Krasińskiego 54/56, 01-755 Warszawa, Poland

autor

Skibniewski F. W.

• Technical Department of Aeromedical Research and Flight Simulators, Military Institute of Aviation Medicine, Warsaw, Poland

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