[Automatic analysis of systolic time intervals using polygraphic examinations]. / L'analisi automatica dell'esame poligrafico.

For clinical purpose, poligraphyc signals are analyzed: systolic time intervals (STI) and all other significative magnitudes are measured. A system of modular programs (ATS), in Assembler and Fortran IV languages, digitalizes, filters and analyzes three simultaneous analogical signals: ECG, PCK and CP. ATS, adapted polynomial and gonyometrics leats-squares smoothings to the signals for leaving-out spikes and drifts, employs algorhythms that, by a statistic knowledge of the thresholds of the fist derivative of each signal and of the globality of smoothed signals, converge to the measures of the required significative magnitudes. A statistic investigation (on 100 samples) showed that ATS is better than every manual analysis in terms of efficiency, speed and amount of information. In conclusion ATS program is suitable for clinical purposes.