Abstract
A body surface potential mapping system equipped with a microprocessor has been developed. It enables high-speed real-time and simultaneous observation of e.c.g. data of 96 lead points in a character display mode. The machine has functions not only to perform basic data processing such as baseline correction and linear interpolation for malfunctioned electrodes but also to generate an isopotential contour map, record data onto a floppy disc, make hard copies of displayed patterns and characters, etc. To increase the operation speed, all the assembler programs were put in one module. Thus, an operator can easily recognise the spatial motion pattern of the body surface potential map and, in addition, find malfunctioned channels by observing the pattern. A belt type electrode system allows quick and adaptable attachment. The practical usefulness of the system has been proved with the co-operation of cardiologists with over 120 cases of cardiac disease.
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