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Polysomnography (PSG) is a multi-parameter type of sleep study [1] and a diagnostic tool in sleep medicine.The test result is called a polysomnogram, also abbreviated PSG.The name is derived from Greek and Latin roots: the Greek πολύς (polus for "many, much", indicating many channels), the Latin somnus ("sleep"), and the Greek γράφειν (graphein, "to write").
A hypnogram is a form of polysomnography; it is a graph that represents the stages of sleep as a function of time. It was developed as an easy way to present the recordings of the brain wave activity from an electroencephalogram (EEG) during a period of sleep.
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Electrode locations of International 10-20 system for encephalography recording. The 10–20 system or International 10–20 system is an internationally recognized method to describe and apply the location of scalp electrodes in the context of an EEG exam, polysomnograph sleep study, or voluntary lab research.
The AASM also publishes The AASM Manual for the Scoring of Sleep and Associated Events: Rules, Terminology and Technical Specifications, the definitive reference for the evaluation of polysomnography (PSG) and a home sleep apnea test (HSAT). This resource provides rules for scoring sleep stages, arousals, respiratory events during sleep ...
The K & D Group, of Willoughby, Ohio, is an American major real-estate holder of numerous prominent office and residential properties in Northeast Ohio.K&D Properties was originally established as a partnership by Douglas E. Price, III and Karen M. Paganini in 1984.
A polysomnographic technologist (formerly called a polysomnographic technician) performs overnight, daytime, or home sleep studies, polysomnograms, on people with suspected sleep disorders. In the United States and worldwide, the process for becoming a polysomnography technician or technologist is primarily either on-the-job or certificate ...
The Board of Registered Polysomnographic Technologists (BRPT) maintains credentialing for polysomnographic technologists. It offers two credentials, the registered and certified polysomnographic technologist credentials (the RPSGT and the CPSGT). The BRPT is located at: 8400 Westport Drive, 2nd Floor, McLean, Virginia 22102. The BRPT was ...