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Guideline report. Projecting MRI utilization: two new approaches.

E P Steinberg, R diMonda

    Hospital Technology Series
    |February 9, 1987
    PubMed
    Summary
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    Hospitals can now better predict financial viability for new technologies like MRI using the updated American Hospital Association (AHA) MRI Utilization Model. This enhanced model improves financial risk assessment for magnetic resonance imaging services.

    Area of Science:

    • Healthcare Management
    • Medical Technology Assessment
    • Health Economics

    Background:

    • Acquiring new medical technologies, such as magnetic resonance imaging (MRI), presents significant financial risks for hospitals.
    • Accurate financial impact analysis is crucial for hospitals to determine the viability of offering advanced diagnostic services like MRI.
    • The American Hospital Association (AHA) developed an initial MRI Utilization Model in 1984 to project demand based on inpatient data.

    Purpose of the Study:

    • To introduce and evaluate the second-generation AHA MRI Utilization Model, designed to overcome limitations of the original model.
    • To provide hospitals with a more accurate tool for assessing the financial risks and potential demand for MRI services.
    • To improve the projection methodology for magnetic resonance imaging (MRI) and computed tomography (CT) scan volumes.

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    Main Methods:

    • The second-generation AHA MRI Utilization Model employs two independently derived methodologies: the ICD-9-CM Projection method and the Diagnosis Related Groups (DRG) Projection Method.
    • The revised model incorporates updated expert opinions from 1986, considers both inpatient and outpatient scans, and includes hospital-specific adjustment factors.
    • The DRG method uniquely accounts for scans used for secondary diagnoses, comorbid conditions, complications, and inconclusive diagnostic findings.

    Main Results:

    • The second-generation model offers advantages over the original, including broader expert input, more current data (1986 vs. 1978/1984), and the ability to project both MRI and CT volumes.
    • It calculates total inpatient and outpatient scans and allows for adjustments based on institutional practice variations.
    • The DRG method provides projections for current and future (1990) MRI and CT volumes, including scans for conditions initially presenting without pathology.

    Conclusions:

    • The enhanced AHA MRI Utilization Model provides a more comprehensive and accurate tool for hospitals to forecast MRI and CT scan demand.
    • This improved methodology assists hospitals in making informed financial decisions regarding the adoption and provision of advanced imaging technologies.
    • The model's ability to incorporate outpatient data and a wider range of clinical scenarios enhances its utility for financial risk assessment in healthcare settings.