RSNA 2011: Ultrasound breast cancer screening found to be operator dependent
Published
01 November 2011
| Article by Excerpta Medica
| Tags:
screening,
breast-cancer,
mri,
ultrasound
RSNA 2011: Ultrasound breast cancer screening found to be operator dependent
New data from the ACRIN (American College of Radiology Imaging Network) 6666 study indicate that operator error accounts for missed cancers in about the same proportion of women screened with ultrasound (US) as those screened with mammography or magnetic resonance imaging (MRI). Although the findings do not diminish the importance of US screening for the substantial proportion of cancers missed on mammography, particularly in those with dense breast tissue, these findings are considered important for their ability to alert radiologists about the risks of missing lesions. While computer-assisted detection (CAD) or automated scanning may be helpful in reducing operator error, many of the lesions were identified by observers as abnormalities of interest even though they were not ultimately pursued for biopsy, making them a problem of interpretation rather than documentation. New strategies are needed for reducing false-negative as well as false-positive cancer diagnoses.
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