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  • Title: [On-line, high-speeded data analysis of cardiovascular function using hybrid systems (author's transl)].
    Author: Gotoh Y, Kubota M, Kaseno S, Furukawa K.
    Journal: Hokkaido Igaku Zasshi; 1976 Mar; 51(2):123-8. PubMed ID: 945223.
    Abstract:
    In recent years application of computer techniques to various problems in biology has increased. In the field of anesthesia, where rapid changes appearing in a short time must be followed, the conventional, mannual methods are not applicable. So we have developed on-line computer analytical methods of cardiovascular function. Hybrid systems are the preferred methods in many biological problems, either because of efficiency and lower cost, or because of real time, on-line, closed-loop capabilities for direct use during experiments. As a computer output we used a graphic display computer and cathod ray tube devices. We applied these systems to analize and calculate cardiac work with other circulatory parameters. We got a ventricular function curve in visible form on CRT within 30 seconds after introducing the signals of left ventricular work and ventricular end-diastolic pressure into the analog computer. It was also useful to calculate vascular input impedence and myocardial maximal velocity of shortening. Finally causes of input errors in these analytical methods were discussed.
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