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Related Experiment Videos

Microcomputer acquisition and analysis system for the isolated working heart preparation.

D P Harris, M L Marriott, J H McNeill

    Journal of Pharmacological Methods
    |August 1, 1983
    PubMed
    Summary

    A new automated system using a microcomputer simplifies data collection and analysis for rat heart studies. This method improves accuracy and details cardiac function parameters, showing thyroid hormone effects.

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    Area of Science:

    • Physiology
    • Biomedical Engineering
    • Pharmacology

    Background:

    • Traditional data acquisition in physiological studies can be labor-intensive and prone to errors.
    • Accurate measurement of cardiac function parameters is crucial for understanding heart physiology and disease.
    • Microcomputer-based systems offer potential for automating complex data handling in biological research.

    Purpose of the Study:

    • To describe an automated data acquisition and analysis system for rat working heart preparations.
    • To detail the methods and formulae for calculating cardiac function parameters.
    • To demonstrate the system's utility with sample data on thyroid hormone effects.

    Main Methods:

    • Development of a microcomputer (Apple II Plus)-based automated system.

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  • Application of the system to collect data from isolated rat working heart preparations.
  • Detailed description of algorithms and formulas for deriving cardiac function metrics.

    • Main Results:

    • The automated system significantly eases data acquisition and parameter calculation.
    • Elimination of certain sources of error in derived cardiac function parameters.
    • Sample data illustrate the system's capability in assessing the effects of thyroid hormone on cardiac contractility (rate of left ventricular pressure development).

    Conclusions:

    • The described automated system provides an efficient and accurate method for studying cardiac function in rat models.
    • This approach enhances the reliability of physiological measurements and reduces potential calculation errors.
    • The system is valuable for research investigating the impact of pharmacological agents or physiological conditions on heart performance.