Blind source separation for ambulatory sleep recording.

Fabienne Porée (1) , Amar Kachenoura (1) , Hervé Gauvrit (1) , Catherine Morvan (2) , Guy Carrault (1) , Lotfi Senhadji (1)

1 LTSI - Laboratoire Traitement du Signal et de l'Image
2 DELTAMED SA

This paper deals with the conception of a new system for sleep staging in ambulatory conditions. Sleep recording is performed by means of five electrodes: two temporal, two frontal and a reference. This configuration enables to avoid the chin area to enhance the quality of the muscular signal and the hair region for patient convenience. The electroencephalopgram (EEG), eletromyogram (EMG), and electrooculogram (EOG) signals are separated using the Independent Component Analysis approach. The system is compared to a standard sleep analysis system using polysomnographic recordings of 14 patients. The overall concordance of 67.2% is achieved between the two systems. Based on the validation results and the computational efficiency we recommend the clinical use of the proposed system in a commercial sleep analysis platform.

Mots clés: ICA; EEG; Sleep; Deconvolution; BBS; Blind Source Separation; EMG; ECG

Domaines: Ingénierie biomédicale; Traitement du signal et de l'image [eess.SP]; Théorie [stat.TH]; Statistiques [math.ST]; Neurosciences; Méthodes et statistiques; Traitement du signal et de l'image [eess.SP]

Fabienne Porée, Amar Kachenoura, Hervé Gauvrit, Catherine Morvan, Guy Carrault, et al.. Blind source separation for ambulatory sleep recording.. IEEE Transactions on Information Technology in Biomedicine, 2006, 10 (2), pp.293-301. ⟨10.1109/TITB.2005.859878⟩. ⟨inserm-00131030⟩