Obstructive sleep apnea screening by NIRS imaging

Feraydune Kashefi; Donald E. Watenpaugh; Hanli Liu

doi:10.1117/12.702239

23 March 2007 Obstructive sleep apnea screening by NIRS imaging

Feraydune Kashefi, Donald E. Watenpaugh, Hanli Liu

Proceedings Volume 6424, Photonic Therapeutics and Diagnostics III; 64242H (2007) https://doi.org/10.1117/12.702239
Event: SPIE BiOS, 2007, San Jose, California, United States

Abstract

This study aimed at determining cerebral hemodynamic parameters in human subjects during breath holding using near infrared spectroscopy (NIRS). Breath holding serves as a method of simulation OSA (Obstructive Sleep Apnea). Data was acquired non-invasively from 40 subjects, twenty OSA sufferers (10 females, 10 males, age 20-70 years), and twenty normal volunteers (10 females, 10 males, age 20-65 years). Measurements were conducted using a LED Imager (LEDI) during breath holding. In comparing OSA subjects with controls during breath holding, a consistent increase or even a decrease in oxy- ([O₂Hb]), deoxy- ([HHb]), total hemoglobin ([tHb]) concentrations, and tissue hemoglobin oxygen saturation (SO₂) in the regional brain tissue were observed. The LEDI probe consists of 4 sources and 10 detectors serving as 4 sets of 1 source and 4 detectors each. A three wavelength (730, 805, and 850 nm) LED was used and the wavelengths were switched sequentially. The distance between sources and the source-detector separation were 2.5 cm. Data acquisition consisted of three segments, baseline for one minute, followed by a period of breath holding, and then 2 minutes of recovery time. The duration of the breath holding was subject-dependent. Our investigation proves that NIR spectroscopy could be used as a tool for detecting cerebral hemodynamics and also serves as a method of screening patients with OSA.

Citation Download Citation

Feraydune Kashefi, Donald E. Watenpaugh, and Hanli Liu "Obstructive sleep apnea screening by NIRS imaging", Proc. SPIE 6424, Photonic Therapeutics and Diagnostics III, 64242H (23 March 2007); https://doi.org/10.1117/12.702239

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Near infrared spectroscopy

Brain

Control systems

Hemodynamics

Oxygen

Sensors

Tissues

Show All Keywords

Keywords/Phrases

Search In:

Publication Years