STRESS TEST SYSTEM A personal computer based system was developed to carry out the stress test on subjects with probable heart disease, as a low cost indigenous version of the stress test systems available abroad. The system consists of a PC/AT, ECG data acquisition system consisting of preamplifier, filter, multiplexer and A/D converter, printer and cables assembly. The software consists of acquisition module, display module, analysis module and report generator all of which are controlled through a supervisor program. The main functions of the system are to monitor, analyse and document the ECG of a person doing exercise. The trends of heart rate, ST shift and BP during and after the test are used to infer the abnormalities. The system was validated at various medical institutions. |