DocumentCode :
2944264
Title :
Detection of airway occlusion in simulated obstructive sleep apnea/hypopnea using ultrasound: An in vitro study
Author :
Al-Abed, Mohammad A. ; Antich, Peter ; Watenpaugh, Donald E. ; Behbehani, Khosrow
Author_Institution :
Dept. of Bioeng., Univ. of Texas at Arlington, Arlington, TX, USA
fYear :
2010
fDate :
Aug. 31 2010-Sept. 4 2010
Firstpage :
284
Lastpage :
287
Abstract :
Obstructive sleep apnea/hypopnea Syndrome (OSAHS) is the most common form of Sleep Disordered Breathing (SDB) and it is estimated to affect approximately 6% of US adult population. Various methods have been proposed for the development of inexpensive screening methods to detect SDB to reduce the need for costly nocturnal polysomnography (NPSG). By using the existing air in the airway as an ultrasonic contrast agent, we propose a method to examine the narrowing or occlusion of the airway associated with OSAHS events. We describe here an in vitro study that approximates the anatomical and acoustic characteristics of the airway and neck. In this experiment, we simulate the fully open airway as well as apnea and hypopnea events. These in vitro studies results show significant differences in the ultrasonic signals acquired from the open airway model versus those from the model depicting apnea and hypopnea events. Therefore, the findings provide a foundation for development of an ultrasound system to detect SDB in vivo.
Keywords :
biomedical measurement; biomedical ultrasonics; medical disorders; medical signal processing; physiological models; pneumodynamics; sleep; acoustic characteristics; airway narrowing; airway occlusion detection; anatomical characteristics; obstructive sleep apnea-hypopnea syndrome; open airway model; sleep disordered breathing; ultrasonic contrast agent; ultrasonic in vitro airway and neck model; Acoustics; Atmospheric modeling; Electron tubes; In vitro; Neck; Sleep apnea; Ultrasonic imaging; Air; Biomechanics; Humans; Models, Biological; Signal Processing, Computer-Assisted; Sleep Apnea Syndromes; Sleep Apnea, Obstructive; Trachea; Ultrasonography;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Engineering in Medicine and Biology Society (EMBC), 2010 Annual International Conference of the IEEE
Conference_Location :
Buenos Aires
ISSN :
1557-170X
Print_ISBN :
978-1-4244-4123-5
Type :
conf
DOI :
10.1109/IEMBS.2010.5627425
Filename :
5627425
Link To Document :
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