Critical closing pressure monitoring using diffuse correlation spectroscopy in cardiac ablation patients

Alec Lafontant; Karla Bergonzi; Rodrigo Forti; Ronak Shah; Lin Wang; Tiffany Ko; Arjun Yodh; Jeffery Arkles; Ramani Balu; Andrew Kofke; Wesley B. Baker; Brian R. White; Elizabeth M. Gabrielli

doi:10.1117/12.2579301

5 March 2021 Critical closing pressure monitoring using diffuse correlation spectroscopy in cardiac ablation patients

Alec Lafontant, Karla Bergonzi, Rodrigo Forti, Ronak Shah, Lin Wang, Tiffany Ko, Arjun Yodh, Jeffery Arkles, Ramani Balu, Andrew Kofke, Wesley B. Baker, Brian R. White, Elizabeth M. Gabrielli

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Proceedings Volume 11639, Optical Tomography and Spectroscopy of Tissue XIV; 1163913 (2021) https://doi.org/10.1117/12.2579301
Event: SPIE BiOS, 2021, Online Only

Abstract

Monitoring critical closing pressure (CrCP) can be a useful and noninvasive measure of intracranial pressure (ICP), especially in patients with high risk factors for brain injury. We monitored five patients undergoing cardiac ablation procedures using diffuse correlation spectroscopy (DCS). We utilized the prolonged diastolic events that occur during this procedure to validate non-invasive measurements of CrCP with DCS. to estimate the gold standard CrCP during long diastolic events induced during the procedure and compared them to estimations from normal pressure and flow waveforms prior to each event.

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Alec Lafontant, Karla Bergonzi, Rodrigo Forti, Ronak Shah, Lin Wang, Tiffany Ko, Arjun Yodh, Jeffery Arkles, Ramani Balu, Andrew Kofke, Wesley B. Baker, Brian R. White, and Elizabeth M. Gabrielli "Critical closing pressure monitoring using diffuse correlation spectroscopy in cardiac ablation patients", Proc. SPIE 11639, Optical Tomography and Spectroscopy of Tissue XIV, 1163913 (5 March 2021); https://doi.org/10.1117/12.2579301

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KEYWORDS

Spectroscopy

Linear filtering

Blood pressure

Cerebral blood flow

Data acquisition

Doppler effect

Human subjects

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