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Published online before print March 15, 2005, 10.1148/radiol.2352040422
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Trends in Recall, Biopsy, and Positive Biopsy Rates for Screening Mammography in an Academic Practice1

David Gur, ScD, Luisa P. Wallace, MD, Amy H. Klym, BS, Lara A. Hardesty, MD, Gordon S. Abrams, MD, Ratan Shah, MD and Jules H. Sumkin, DO

1 From the Department of Radiology, University of Pittsburgh and Magee-Womens Hospital of the University of Pittsburgh Medical Center, 300 Halket St, Imaging Research, Suite 4200, Pittsburgh, PA 15213-3180. Received March 9, 2004; revision requested May 11; final revision received July 21; accepted August 4. Supported in part by grants CA77850 and CA84241 from the National Cancer Institute, National Institutes of Health. Address correspondence to D.G. (e-mail: gurd@upmc.edu).



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Figure 1. Plot shows the biopsy rates per 1000 screening examinations for each calendar quarter. The fitted line is a linear least squares fit of the observed data.

 


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Figure 2. Plot shows the percentage of malignant biopsies for each calendar quarter. The fitted line is a linear least squares fit of the observed data.

 


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Figure 3. Plot shows the stereotactic (11-gauge) vacuum-assisted core biopsy rates per 1000 screening examinations for each calendar quarter. The fitted line is a linear least squares fit of the observed data.

 





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