Non-contact cardiac activity monitoring using optical speckle-tolerant pulsed laser vibrometer

ChenChia Wang; Sudhir B. Trivedi; Feng Jin; Gary P. Zientara; Fow-sen Choa; Jacob Khurgin

doi:10.1117/12.2648096

14 March 2023 Non-contact cardiac activity monitoring using optical speckle-tolerant pulsed laser vibrometer

ChenChia Wang, Sudhir B. Trivedi, Feng Jin, Gary P. Zientara, Fow-sen Choa, Jacob Khurgin

Proceedings Volume 12355, Diagnostic and Therapeutic Applications of Light in Cardiology 2023; 1235506 (2023) https://doi.org/10.1117/12.2648096
Event: SPIE BiOS, 2023, San Francisco, California, United States

Abstract

A non-contact, laser-based technology is deployed to monitor the detailed mechanical operations of the various chambers and valves of the heart. The high sensitivity, optical speckle-tolerant laser technology enables cardiac signature detection from the skin vascular network at all locations throughout the patient’s body surface, even in the presence of light-blocking surface coverage such as clothing and shoes. In experiments, observed signal features are identified with specific cardiac activity and corroborated with other modalities including electrocardiography. To demonstrate applicability, cardiac monitoring signals were obtained from patients with widely varying ethnical backgrounds. Abnormal signal from one patient exhibiting sinus arrhythmic symptoms was collected and analyzed, indicating the technology’s potential for medical diagnostics.

Conference Presentation

Citation Download Citation

ChenChia Wang, Sudhir B. Trivedi, Feng Jin, Gary P. Zientara, Fow-sen Choa, and Jacob Khurgin "Non-contact cardiac activity monitoring using optical speckle-tolerant pulsed laser vibrometer", Proc. SPIE 12355, Diagnostic and Therapeutic Applications of Light in Cardiology 2023, 1235506 (14 March 2023); https://doi.org/10.1117/12.2648096

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