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

Table 1

Summary of SAHS screening approaches.

Source	Method	References
Oxygen saturation	Counting on the number of desaturation events	Netzer et al. [16]
	Time spent below 90%	Netzer et al. [16]
	Expert systems	Daniels et al. [17]
	Delta-index	Lévy et al. [18], Olson et al. [19], and Magalang et al. [20]
	Spectral analysis	Zamarrón et al. [21, 22], Hua and Yu [23], and Morillo et al. [24]
	Nonlinear methods (CTM, LZ, and ApEn)	Álvarez et al. [25, 26], Hornero et al. [27], and del Campo et al. [28]
	Machine learning	Victor-Marcos et al. [29–33], Álvarez et al. [34, 35], and El-Solh et al. [36]
Airflow	Spectral analysis	Gutierrez-Tobal et al. [37]
	Nonlinear methods (CTM, LZ, and ApEn)	Gutiérrez-Tobal et al. [38]
	Hilbert-Huang decomposition	Caseiro et al. [39], Salisbury and Sun [40]