Computer-Assisted Diagnosis of the Sleep Apnea-Hypopnea Syndrome: A Review

Table 3

Summary of apneic event detection approaches.

Category	Source	Method	References
Pulse oximetry	SaO2	Counting on the number of desaturation and/or resaturation events	Netzer et al. [16], Flemons et al. [42]
		Online processing + Bagging classifier	Burgos et al. [43]
	PPG	DAP detector based on PPG	Gil et al. [44]
Single-channel respiratory activity	Abdominal breathing signal	Expert system	Macey et al. [45]
	NAF	Amplitude based thresholding	Reisch et al. [46], Pépin et al. [47]
		ANN	Várady et al. [48]
		Mean magnitude of the second derivative	Han et al. [49]
		Flow-power dips, amplitude based detection, and ODI	Nakano et al. [50]
		Fuzzy Inference System	Shin et al. [51], Nazeran et al. [52], Morsy and Al-Ashmouny [53], and Al-Ashmouny et al. [54]
	Thoracic breathing signal	Amplitude based thresholding	Reisch et al. [46]
	Esophageal pressure	Amplitude based thresholding	Reisch et al. [46]
	FOT	Amplitude based thresholding	Reisch et al. [46]
Multichannel respiratory activity	SaO2 + RIP	Amplitude based analysis	Taha et al. [55]
	Airflow + SaO2	TDNN	Tian and Liu [56]
	NAF + PPG	Pulse wave amplitude analysis	Sommermeyer et al. [57]
	Nasal pressure + FOT	Amplitude based feature extraction + thresholding	Steltner et al. [58]
	Thoracic and abdominal respiratory signals	Piecewise liner approximation + time-domain phase difference detection	Várady et al. [59]
	NAF + thoracic and abdominal breathing	Breath-to-breath amplitude analysis	Houdt et al. [60]
	Thoracic and abdominal respiratory effort + ECG + SaO2	SVM	Al-Angari and Sahakian [61]
	EEG + ECG + nasal pressure + oronasal temperature + right EOG + EMG	Wavelets + LAMSTAR ANN	Waxman et al. [62, 63]
	Airflow + SaO2 + thoracic and abdominal breathing	Fuzzy Inference System	Álvarez-Estévez and Moret-Bonillo [64], Maali and Al-Jumaily [65], and Otero et al. [66, 67]