The Apnea Risk Evaluation System (ARES) is an inexpensive, in-home method assessing for sleep-disordered breathing. ARES utilizes expert software to integrate analysis of nocturnal oxygen saturation, pulse rate, snoring sounds, head position/movement recordings acquired with a self-applied, portable single-site (forehead) device with analysis of responses to a clinical questionnaire. During Phase II, an ARES reflectance sensor will be developed to optimize results obtained from in-home recordings and to reduce cost and between-unit variability. The ARES pulse oximeter will be compared to commercial oximeters and co-oximetry during normoxic and hypoxic steady state conditions and during breath-holds at functional residual capacity. Additional algorithms will be implemented to assist in the characterization of abnormal respiratory events and to identify probable arousals. To broaden clinical acceptance, the off-line analysis software will be expanded to allow researchers and sleep medicine professionals to visually inspect the automated ARES algorithm results and modify the scoring.
| Stepnowsky, Carl; Levendowski, Daniel; Popovic, Djordje et al. (2013) Scoring accuracy of automated sleep staging from a bipolar electroocular recording compared to manual scoring by multiple raters. Sleep Med 14:1199-207 |
| Popovic, Djordje; King, Christopher; Guerrero, Melanie et al. (2009) Validation of forehead venous pressure as a measure of respiratory effort for the diagnosis of sleep apnea. J Clin Monit Comput 23:1-10 |
