TY - JOUR
T1 - Evaluation of printed P(VDF-TrFE) pressure sensor signal quality in arterial pulse wave measurement
AU - Laurila, Mika-Matti
AU - Peltokangas, Mikko
AU - Lozano Montero, Karem
AU - Siponkoski, Tuomo
AU - Juuti, Jari
AU - Tuukkanen, Sampo
AU - Oksala, Niku
AU - Vehkaoja, Antti
AU - Mäntysalo, Matti
N1 - INT=elen,"Lozano Montero, Karem"
PY - 2019
Y1 - 2019
N2 - In this contribution, we evaluate the performance of an additively fabricated piezoelectric poly(vinylidenefluoride-cotrifluoroethylene) (P(VDF-TrFE)) based dynamic pressure sensor in non-invasive arterial pulse wave (PW) measurement. Additively fabricated piezoelectric sensors have high potential for the realization of affordable and unobtrusive PW measurement systems which could enable the long-term monitoring of patients with cardiovascular diseases (CVDs). However, the accuracy and reliability of such sensors have not been extensively studied before. We propose an additive fabrication process for a P(VDF-TrFE) PW-sensor, measure PW from the radial artery at the wrist from 22 healthy volunteer subjects, calculate clinically relevant parameters based on the PW waveform and compare their values to the values obtained from concurrent measurement with an electromechanical film (EMFi) based reference sensor, used earlier in several clinical studies. We show that the signals recorded with the two sensors, as well as the radial augmentation index (rAIx) and the stiffness index (SI) calculated from them, are in good agreement with each other. These results demonstrate that the additively fabricated P(VDF-TrFE) PW sensors can reach a suitable level of accuracy and reliability for clinical use.
AB - In this contribution, we evaluate the performance of an additively fabricated piezoelectric poly(vinylidenefluoride-cotrifluoroethylene) (P(VDF-TrFE)) based dynamic pressure sensor in non-invasive arterial pulse wave (PW) measurement. Additively fabricated piezoelectric sensors have high potential for the realization of affordable and unobtrusive PW measurement systems which could enable the long-term monitoring of patients with cardiovascular diseases (CVDs). However, the accuracy and reliability of such sensors have not been extensively studied before. We propose an additive fabrication process for a P(VDF-TrFE) PW-sensor, measure PW from the radial artery at the wrist from 22 healthy volunteer subjects, calculate clinically relevant parameters based on the PW waveform and compare their values to the values obtained from concurrent measurement with an electromechanical film (EMFi) based reference sensor, used earlier in several clinical studies. We show that the signals recorded with the two sensors, as well as the radial augmentation index (rAIx) and the stiffness index (SI) calculated from them, are in good agreement with each other. These results demonstrate that the additively fabricated P(VDF-TrFE) PW sensors can reach a suitable level of accuracy and reliability for clinical use.
KW - CVD
KW - Dynamic pressure sensor
KW - Piezoelectric sensor
KW - Printed sensor
KW - Pulse wave analysis
KW - Pulse wave measurement
KW - CVD
KW - Dynamic pressure sensor
KW - Piezoelectric sensor
KW - Printed sensor
KW - Pulse wave analysis
KW - Pulse wave measurement
U2 - 10.1109/jsen.2019.2934943
DO - 10.1109/jsen.2019.2934943
M3 - Article
VL - 19
SP - 11072
EP - 11080
JO - IEEE Sensors Journal
JF - IEEE Sensors Journal
SN - 1530-437X
IS - 23
ER -