Author + information
- Fayez H. Alruwaili,
- Jacob Griffith,
- Kim Cluff and
- Jeremy Patterson
Background: The aim of this study was to develop a non-invasive mobile skin patch sensor – applied like an adhesive bandage which could potentially measure left-ventricular stroke volume (LVSV).
Methods: The sensor was designed from a single baseline component comprised of a trace of copper configured into a square planar spiral patch. The sensor was energized by an external radio frequency and produced a resonant frequency response with oscillating magnetic/electric fields which surrounded the sensor. Changes in the magnetic/electric fields due to changes in fluid volume were used to collect stroke volume measurement. An elastic bladder was inserted into the left ventricle (LV) of a bovine heart and a 100 ml syringe was used to simulate stroke volume in the heart. Shifts in the sensor's resonant frequency were registered as fluid was pumped into the LV chamber. A statistical correlation analysis and an ANOVA followed by a multiple comparison test adjusted for a Bonferroni (alpha =0.05) was performed to determine the sensor performance in measuring LVSV.
Results: There was a frequency shift of 80.16 kHz due to an 80 ml stroke volume. Statistical correlation revealed a strong relationship (R2 =0.984) between the sensor's resonant frequency shifts and the volumetric changes in the left ventricle.
Conclusions: This study provides promising data for the ability of an electromagnetic skin patch sensor to be a potential technology for LVSV measurements in a non-invasive, cost-effective, and point-of-care setting.
Poster Hall, Hall C
Friday, March 17, 2017, 10:00 a.m.-10:45 a.m.
Session Title: Interventional Cardiology: Translation and Pre-Clinical Research
Abstract Category: 25. Interventional Cardiology: Translation and Pre-clinical Research
Presentation Number: 1116-189
- 2017 American College of Cardiology Foundation