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Related Experiment Videos

Mammogram interpretation by physician assistants.

B J Hillman1, L L Fajardo, T B Hunter

  • 1Department of Radiology, University of Arizona College of Medicine, Tucson.

AJR. American Journal of Roentgenology
|November 1, 1987
PubMed
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Physician assistants (PAs) can interpret mammograms effectively, matching radiologist accuracy while reducing costs and interpretation time. This study supports PAs in mammography screening under radiologist supervision for quality, low-cost care.

Area of Science:

  • Radiology
  • Medical Imaging
  • Oncology

Background:

  • Health maintenance organizations (HMOs) seek cost-effective, high-quality mammography services.
  • Physician assistants (PAs) are increasingly integrated into healthcare teams.
  • The role of PAs in specialized diagnostic interpretation requires evaluation.

Purpose of the Study:

  • To assess the efficacy of physician assistants (PAs) in interpreting mammograms.
  • To compare PA mammogram interpretation performance against radiologists.
  • To evaluate the cost-effectiveness and time efficiency of PA-led mammography interpretation.

Main Methods:

  • Four PAs underwent intensive training in mammographic interpretation.
  • PAs interpreted a dataset of 727 mammograms, including normal cases, benign masses, and cancers.

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  • Performance was compared to six HMO radiologists using sensitivity, specificity, and receiver-operating-characteristic (ROC) curve analysis.

    • Main Results:

    • PA interpretations demonstrated higher sensitivity and comparable specificity to radiologists.
    • ROC curve analysis indicated superior performance by PAs compared to radiologists.
    • PA interpretation was faster and less costly than radiologist interpretation, with similar clinical recommendations.

    Conclusions:

    • Properly trained, supervised, and evaluated PAs are capable of interpreting mammograms effectively.
    • PA involvement in mammography can enhance efficiency and reduce costs.
    • Radiologist supervision is crucial for optimal implementation of PAs in mammography interpretation.