Seismocardiograph Monitoring Using SMS Fiber Structure with PDMS Enclosure
Executive Summary
This study introduces a novel seismocardiography (SCG) monitoring system using a singlemode-multimode-singlemode (SMS) fiber structure encased in a polydimethylsiloxane (PDMS) enclosure. The system demonstrated high sensitivity to cardiac vibrations with an average calibration error of 1.63% and achieved an accuracy of 97.71% when validated against electrocardiogram (ECG) signals, representing a 1.27% improvement over existing fiber-optic SCG sensors. The PDMS enclosure provided mechanical protection without compromising sensor performance, offering a robust and cost-effective solution for SCG-based cardiac monitoring.
Answer Machine Insights
Q: What is the accuracy of the SMS fiber sensor with PDMS enclosure compared to existing fiber-optic SCG sensors?
The SMS fiber sensor with PDMS enclosure achieved an accuracy of 97.71%, which is a 1.27% improvement over existing fiber-optic SCG sensors.
Validation against a gold-standard electrocardiogram (ECG) yielded an average error of 2.29%, representing a 1.27% accuracy improvement over existing fiber-optic SCG sensors (97.71% vs. 96.48%).
Q: Does the PDMS enclosure negatively impact sensor performance?
No, the PDMS enclosure does not negatively impact sensor performance and provides essential mechanical protection.
Statistical analysis further confirmed that the PDMS enclosure did not negatively impact sensor performance while providing essential mechanical protection.
Key Results
The SMS fiber sensor achieved an average calibration error of 1.63%.
Validation against ECG signals yielded an accuracy of 97.71%, a 1.27% improvement over existing fiber-optic SCG sensors.
Visual Evidence
Fig. 2 PDMS Fiber-Optic Seismocardiograph calibration setup.
Clinical Snapshot
Evidence Rating
Relevance
high Priority