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Related Experiment Videos

Coding mammograms using the classification "probably benign finding--short interval follow-up suggested"

L S Caplan1, D Blackman, M Nadel

  • 1Division of Cancer Prevention and Control, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, GA 30341, USA.

AJR. American Journal of Roentgenology
|February 4, 1999
PubMed
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Radiologists use Breast Imaging Reporting and Data System (BI-RADS) category 3 for probably benign breast lesions. Patient age, symptoms, and exam findings influenced category 3 use, with significant geographic variability suggesting inconsistent application.

Area of Science:

  • Radiology
  • Oncology
  • Public Health

Background:

  • Mammography frequently identifies benign breast lesions with a high probability of being benign.
  • The Breast Imaging Reporting and Data System (BI-RADS) category 3 is designated for 'probably benign finding-short interval follow-up suggested' lesions.
  • Understanding factors influencing BI-RADS category 3 utilization is crucial for standardized breast cancer screening.

Purpose of the Study:

  • To investigate patient-related and facility-related factors associated with the utilization of BI-RADS category 3 in a national cancer detection program.
  • To identify potential variations in the application of BI-RADS category 3 classification among different geographic regions.

Main Methods:

  • Analysis of mammography data from the National Breast and Cervical Cancer Early Detection Program.

Related Experiment Videos

  • Inclusion of women aged 40 and older who underwent mammography by September 30, 1996 (n=372,760).
  • Statistical assessment of factors including patient age, symptomatology, clinical breast examination findings, and geographic location.

    • Main Results:

    • Approximately 7.7% of mammograms were classified as BI-RADS category 3.
    • Category 3 probability decreased with increasing patient age.
    • Symptomatic women and those with abnormal clinical breast examinations were more likely to receive a category 3 classification.
    • Significant variation in category 3 usage was observed across states/tribal organizations (1.4% to 14.0%).

    Conclusions:

    • Patient symptomatology and clinical findings are associated with BI-RADS category 3 classification.
    • The location of mammography significantly impacts category 3 utilization, indicating potential inter-radiologist variability in applying the 'probably benign' code.
    • Standardization of BI-RADS category 3 interpretation may be necessary to ensure consistent breast lesion management.