title: A microprocessor based instrument for the spectral analysis of the EEG in anaesthesia.
abstract: An instrument for monitoring the frequency components contained in the electroencephalogram is described. The technique uses the fast Fourier transform which is implemented in a microprocessor controlled 'black box'. The control and display of the data are organised by a conventional microcomputer. The system is designed for use by practising anaesthetists in a district general hospital environment and is, therefore, inexpensive and simple to operate. The operation of the equipment is described and some limited results from early clinical trials are presented.
mesh_terms: D000758:Anesthesia; D004566:Electrodes; D004569:Electroencephalography / Q000295:instrumentation* / Q000379:methods; D006801:Humans; D008838:Microcomputers; D012815:Signal Processing, Computer-Assisted; D012984:Software