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Acquisition of gamma camera and physiological data by computer.

S N Hack, M Chang, B R Line

    Journal of Nuclear Medicine : Official Publication, Society of Nuclear Medicine
    |November 1, 1986
    PubMed
    Summary
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    A new Research Data Acquisition System (RDAS) enables concurrent signal acquisition from gamma cameras and physiological sources. This high-speed system offers comparable performance to commercial systems for nuclear medicine applications.

    Area of Science:

    • Medical Imaging
    • Biomedical Engineering
    • Computer Science

    Background:

    • Clinically oriented nuclear medicine computers often have limited multi-source, high-speed data acquisition capabilities.
    • Efficiently acquiring data from diverse sources like gamma cameras and physiological monitors is crucial for advanced medical research.

    Purpose of the Study:

    • To design, implement, and test a novel Research Data Acquisition System (RDAS).
    • To overcome limitations in existing systems for concurrent, high-speed data acquisition.
    • To evaluate the performance of the RDAS for nuclear medicine applications.

    Main Methods:

    • Developed a general-purpose digital computer-based system for simultaneous data acquisition.
    • Integrated input for up to four gamma camera sources (200 kHz/source) and eight physiological signal sources (50 kHz aggregate).

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  • Conducted rigorous testing to assess linearity and timing characteristics.

    • Main Results:

    • The RDAS successfully acquired signals concurrently from gamma camera and physiological sources.
    • Testing confirmed acceptable linearity and timing performance.
    • Flood images acquired by the RDAS were comparable to those from a commercial nuclear medicine system, meeting NEMA standards.

    Conclusions:

    • The developed RDAS effectively addresses limitations in current nuclear medicine data acquisition systems.
    • The system demonstrates robust performance suitable for research and clinical applications.
    • The RDAS offers a viable solution for high-speed, multi-source data acquisition in medical imaging.