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Neurologic computed tomography in a defined population group.

R H Kennedy, H L Baker, O W Houser

    Radiology
    |January 1, 1979
    PubMed
    Summary
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    Neurologic computed tomography (CT) use increased from 1973-1976, with higher rates in older adults. A population of 400,000 may be needed for adequate CT scanner utilization in neurologic disease investigation.

    Area of Science:

    • Neurology
    • Radiology
    • Medical Imaging

    Background:

    • Computed tomography (CT) is a crucial diagnostic tool in neurology.
    • Understanding CT scan utilization patterns is essential for resource allocation and healthcare planning.

    Purpose of the Study:

    • To analyze the utilization rates of neurologic computed tomography (CT) scans in a defined population.
    • To determine the population size required for adequate CT scanner use in neurologic disease investigation.

    Main Methods:

    • Retrospective analysis of neurologic CT scans performed on 766 residents of Olmsted County, Minnesota, between June 1973 and 1976.
    • Calculation of scan rates per 1,000 population, including age-specific rates.

    Main Results:

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  • A total of 981 CT scans were performed during the study period.
  • The number of CT scans per 1,000 population increased annually.
  • Age-specific rates were highest among individuals aged 65 and older.

    • Conclusions:

    • Neurologic CT scan utilization demonstrated an upward trend during the study period.
    • An estimated population of 400,000 may be necessary to ensure sufficient CT scanner use for neurologic disease diagnosis, assuming a plateau of 6 scans per 1,000 population.