Abstract
A simultaneous recording system of electromyogram and fluoroscopic image was described. It was devised for the investigations of deglutition.The system consists of a four channel, electromyograph, a X-ray T.V.and a video-tape-recorder.The electromyograms on an oscilloscope are recorded by a video camera and fed in a corner of the image of the X-ray T.V.with a use of n video camera wiper and a tape synch, adapter.Both the electromyographic signals and the fluoroscopic images are simultaneously recorded on video tapes.The merits of the present system are (1) quick and easy reproduction, (2) multidimensional observations, (3) small dosages of X-ray exposure, and (4) a set-up without any specially ordered equipments and easy operation.With the system, it is feasible to investigate relationships between actions of muscles and movements of each part of the food channel in deglutition.The results of the investigations with the system will be reported on separate occasions.
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