Detection of apnoeic and breathing activity through pole-zero analysis of the SpO2 signal.

Journal article

A new method using autoregressive modelling and pole tracking is proposed to detect cyclical activity within the oxygen saturation signal , SpO(2), for subjects with Obstructive Sleep Apnoea (OSA). OSA is a sleep condition whereby the upper airway is obstructed and cessation in respiration (apnoea) occurs. The three types of detected activity include: apnoea, mix, and normal breathing, where mix refers to breathing with a low-frequency component . Overall classifications produced by the analysis are in close agreement with expert scoring of the database. Furthermore, the pole-zero analysis method allows, for the first time, the mix sections to be identified automatically.

Authors: Lazareck, L; Tarassenko, L

• Journal: Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference
• Volume: Suppl
• Pages: 6573-6576
• Publication date: 2006-01-01
• DOI: 10.1109/iembs.2006.260891
• ISSN: 1557-170X
• Language: English
• Keywords: Respiration; Apnea; Sleep Apnea, Obstructive; Signal Processing, Computer-Assisted; Oxygen Consumption; Humans