Search results for "Polysomnography"
showing 3 items of 133 documents
PEDIATRIC OSAS TREATED WITH ADENOIDECTOMY: A COHORT STUDY CONDUCTED AT THE UNIVERSITY HOSPITAL OF PALERMO, ITALY
2021
The incidence of Obstructive Sleep Apnea Syndrome (OSAS) in the pediatric population is about 2%. The diagnosis is based on the employment of questionnaires, and polysomnography (PSG) that is the gold standard also among children. The PSG allows to classify OSAS as mild in case of 110. If polysomnography is not available, we need alternative diagnostic tests such as nocturnal oximetry studies and respiratory polygraphy. The risk factors identified are different from adults, first tonsillar hypertrophy wins over others. The symptoms and signs described are similar to adult population, but sleep enuresis, neurocognitive impairment and behavioral problems (attention-deficit/hyperactivity disor…
Multi-modality of polysomnography signals’ fusion for automatic sleep scoring
2019
Objective: The study aims to develop an automatic sleep scoring method by fusing different polysomnography (PSG) signals and further to investigate PSG signals’ contribution to the scoring result. Methods: Eight combinations of four modalities of PSG signals, namely electroencephalogram (EEG), electrooculogram (EOG), electromyogram (EMG), and electrocardiogram (ECG) were considered to find the optimal fusion of PSG signals. A total of 232 features, covering statistical characters, frequency characters, time-frequency characters, fractal characters, entropy characters and nonlinear characters, were derived from these PSG signals. To select the optimal features for each signal fusion, four wi…