A multimodal optical catheter for diagnosing obstructive sleep apnea

A. J. Wall, J. W. Arkwright, K. Reynolds, A. Ruiz-Vargas, T. Omari, A. S. Carney, P. Catcheside, D. McEvoy, P. Eastwood

Research output: Chapter in Book/Conference paperConference paper

Abstract

We present a multimodal catheter for characterizing airway collapse in obstructive sleep apnea (OSA) during in-vivo sleep studies. Traditionally, diagnosis focusses on identifying the presence of apnea rather than the underlying cause of obstruction, and current methods of detecting airway collapse are not able to identify a specific patient's contributing factors. It is considered that a simple method to establish the primary site and mechanism for upper airway collapse would improve the ability of clinicians to distinguish which patients would benefit from one of the variety of treatments currently available. By introducing a newly developed manometry catheter into in-vivo studies of known OSA sufferers we can provide the means to determine the location of the site(s) of collapse, the degree of occlusion that occurs, the severity of reduced air flow, the associated anatomical features, and mechanism of collapse. The device consists of 13 discrete pressure and temperature sensing elements and a micro-video camera that collectively enable simultaneous recording of pressure, temperature, and visualization of the point of collapse. The sensors use fiber Bragg gratings (FBGs) spaced on a 10mm pitch which is sufficient to provide an accurate interpolated image of both pressure and temperature along the upper airway (above the epiglottis), whilst the use of paired FBGs effectively removes the temperature artefact. We present results from recent in-vivo studies that demonstrate the viability of the device to identify and characterize occlusive events in the upper airway and the potential to better guide subsequent therapeutic interventions.

Original languageEnglish
Title of host publicationOPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS XIX
Editors Gannot
PublisherSPIE-INT SOC OPTICAL ENGINEERING
Number of pages10
Volume10872
DOIs
Publication statusPublished - 2019
EventConference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XIX - San Francisco, United States
Duration: 2 Feb 20193 Feb 2019

Publication series

NameProgress in Biomedical Optics and Imaging
PublisherSPIE-INT SOC OPTICAL ENGINEERING
Volume10872
ISSN (Print)1605-7422

Conference

ConferenceConference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XIX
Abbreviated titleSPIE BiOS 2019
CountryUnited States
CitySan Francisco
Period2/02/193/02/19

Cite this

Wall, A. J., Arkwright, J. W., Reynolds, K., Ruiz-Vargas, A., Omari, T., Carney, A. S., ... Eastwood, P. (2019). A multimodal optical catheter for diagnosing obstructive sleep apnea. In Gannot (Ed.), OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS XIX (Vol. 10872). (Progress in Biomedical Optics and Imaging; Vol. 10872). SPIE-INT SOC OPTICAL ENGINEERING. https://doi.org/10.1117/12.2506567
Wall, A. J. ; Arkwright, J. W. ; Reynolds, K. ; Ruiz-Vargas, A. ; Omari, T. ; Carney, A. S. ; Catcheside, P. ; McEvoy, D. ; Eastwood, P. / A multimodal optical catheter for diagnosing obstructive sleep apnea. OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS XIX. editor / Gannot. Vol. 10872 SPIE-INT SOC OPTICAL ENGINEERING, 2019. (Progress in Biomedical Optics and Imaging).
@inproceedings{52270958adaa4f03a064a637c1b29fa7,
title = "A multimodal optical catheter for diagnosing obstructive sleep apnea",
abstract = "We present a multimodal catheter for characterizing airway collapse in obstructive sleep apnea (OSA) during in-vivo sleep studies. Traditionally, diagnosis focusses on identifying the presence of apnea rather than the underlying cause of obstruction, and current methods of detecting airway collapse are not able to identify a specific patient's contributing factors. It is considered that a simple method to establish the primary site and mechanism for upper airway collapse would improve the ability of clinicians to distinguish which patients would benefit from one of the variety of treatments currently available. By introducing a newly developed manometry catheter into in-vivo studies of known OSA sufferers we can provide the means to determine the location of the site(s) of collapse, the degree of occlusion that occurs, the severity of reduced air flow, the associated anatomical features, and mechanism of collapse. The device consists of 13 discrete pressure and temperature sensing elements and a micro-video camera that collectively enable simultaneous recording of pressure, temperature, and visualization of the point of collapse. The sensors use fiber Bragg gratings (FBGs) spaced on a 10mm pitch which is sufficient to provide an accurate interpolated image of both pressure and temperature along the upper airway (above the epiglottis), whilst the use of paired FBGs effectively removes the temperature artefact. We present results from recent in-vivo studies that demonstrate the viability of the device to identify and characterize occlusive events in the upper airway and the potential to better guide subsequent therapeutic interventions.",
keywords = "Obstructive sleep apnea, upper airway collapse, fiber optic sensing, fiber Bragg gratings, optical design, catheter, MANOMETRY CATHETER",
author = "Wall, {A. J.} and Arkwright, {J. W.} and K. Reynolds and A. Ruiz-Vargas and T. Omari and Carney, {A. S.} and P. Catcheside and D. McEvoy and P. Eastwood",
year = "2019",
doi = "10.1117/12.2506567",
language = "English",
volume = "10872",
series = "Progress in Biomedical Optics and Imaging",
publisher = "SPIE-INT SOC OPTICAL ENGINEERING",
editor = "Gannot",
booktitle = "OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS XIX",

}

Wall, AJ, Arkwright, JW, Reynolds, K, Ruiz-Vargas, A, Omari, T, Carney, AS, Catcheside, P, McEvoy, D & Eastwood, P 2019, A multimodal optical catheter for diagnosing obstructive sleep apnea. in Gannot (ed.), OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS XIX. vol. 10872, Progress in Biomedical Optics and Imaging, vol. 10872, SPIE-INT SOC OPTICAL ENGINEERING, Conference on Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XIX, San Francisco, United States, 2/02/19. https://doi.org/10.1117/12.2506567

A multimodal optical catheter for diagnosing obstructive sleep apnea. / Wall, A. J.; Arkwright, J. W.; Reynolds, K.; Ruiz-Vargas, A.; Omari, T.; Carney, A. S.; Catcheside, P.; McEvoy, D.; Eastwood, P.

OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS XIX. ed. / Gannot. Vol. 10872 SPIE-INT SOC OPTICAL ENGINEERING, 2019. (Progress in Biomedical Optics and Imaging; Vol. 10872).

Research output: Chapter in Book/Conference paperConference paper

TY - GEN

T1 - A multimodal optical catheter for diagnosing obstructive sleep apnea

AU - Wall, A. J.

AU - Arkwright, J. W.

AU - Reynolds, K.

AU - Ruiz-Vargas, A.

AU - Omari, T.

AU - Carney, A. S.

AU - Catcheside, P.

AU - McEvoy, D.

AU - Eastwood, P.

PY - 2019

Y1 - 2019

N2 - We present a multimodal catheter for characterizing airway collapse in obstructive sleep apnea (OSA) during in-vivo sleep studies. Traditionally, diagnosis focusses on identifying the presence of apnea rather than the underlying cause of obstruction, and current methods of detecting airway collapse are not able to identify a specific patient's contributing factors. It is considered that a simple method to establish the primary site and mechanism for upper airway collapse would improve the ability of clinicians to distinguish which patients would benefit from one of the variety of treatments currently available. By introducing a newly developed manometry catheter into in-vivo studies of known OSA sufferers we can provide the means to determine the location of the site(s) of collapse, the degree of occlusion that occurs, the severity of reduced air flow, the associated anatomical features, and mechanism of collapse. The device consists of 13 discrete pressure and temperature sensing elements and a micro-video camera that collectively enable simultaneous recording of pressure, temperature, and visualization of the point of collapse. The sensors use fiber Bragg gratings (FBGs) spaced on a 10mm pitch which is sufficient to provide an accurate interpolated image of both pressure and temperature along the upper airway (above the epiglottis), whilst the use of paired FBGs effectively removes the temperature artefact. We present results from recent in-vivo studies that demonstrate the viability of the device to identify and characterize occlusive events in the upper airway and the potential to better guide subsequent therapeutic interventions.

AB - We present a multimodal catheter for characterizing airway collapse in obstructive sleep apnea (OSA) during in-vivo sleep studies. Traditionally, diagnosis focusses on identifying the presence of apnea rather than the underlying cause of obstruction, and current methods of detecting airway collapse are not able to identify a specific patient's contributing factors. It is considered that a simple method to establish the primary site and mechanism for upper airway collapse would improve the ability of clinicians to distinguish which patients would benefit from one of the variety of treatments currently available. By introducing a newly developed manometry catheter into in-vivo studies of known OSA sufferers we can provide the means to determine the location of the site(s) of collapse, the degree of occlusion that occurs, the severity of reduced air flow, the associated anatomical features, and mechanism of collapse. The device consists of 13 discrete pressure and temperature sensing elements and a micro-video camera that collectively enable simultaneous recording of pressure, temperature, and visualization of the point of collapse. The sensors use fiber Bragg gratings (FBGs) spaced on a 10mm pitch which is sufficient to provide an accurate interpolated image of both pressure and temperature along the upper airway (above the epiglottis), whilst the use of paired FBGs effectively removes the temperature artefact. We present results from recent in-vivo studies that demonstrate the viability of the device to identify and characterize occlusive events in the upper airway and the potential to better guide subsequent therapeutic interventions.

KW - Obstructive sleep apnea

KW - upper airway collapse

KW - fiber optic sensing

KW - fiber Bragg gratings

KW - optical design

KW - catheter

KW - MANOMETRY CATHETER

U2 - 10.1117/12.2506567

DO - 10.1117/12.2506567

M3 - Conference paper

VL - 10872

T3 - Progress in Biomedical Optics and Imaging

BT - OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS XIX

A2 - Gannot, null

PB - SPIE-INT SOC OPTICAL ENGINEERING

ER -

Wall AJ, Arkwright JW, Reynolds K, Ruiz-Vargas A, Omari T, Carney AS et al. A multimodal optical catheter for diagnosing obstructive sleep apnea. In Gannot, editor, OPTICAL FIBERS AND SENSORS FOR MEDICAL DIAGNOSTICS AND TREATMENT APPLICATIONS XIX. Vol. 10872. SPIE-INT SOC OPTICAL ENGINEERING. 2019. (Progress in Biomedical Optics and Imaging). https://doi.org/10.1117/12.2506567