Friday, July 18, 2014

Ultrasound as an adjunct to mammography detects more cancers in women with dense breasts

Scheel et al study published in AJOG, reports on their review from 189 studies of screening for breast cancer in women with dense breasts.  From the total of 189 studies, 12 that were conducted between January 2000 and April 2013 met the criteria set by the researchers. The reporting of breast cancer risk factors varied across studies; however, the populations studied tended to be at greater than average risk for developing breast cancer.

Overall, ultrasound (US) detected an additional 0.3-7.7 cancers/1,000 examinations (Median 4.2) and was associated with an additional 11.7-106.6 biopsies/1,000 examinations (Median 52.2). They found that US screening for women with dense breast tissue increases cancer detection and leads to fewer false positive biopsies compared to mammography alone.

The researchers report that most of the additional cancers identified by ultrasound were small and node-negative stage. Such cancers can be curable and require less aggressive treatment because of the early detection. They suggest physicians should discuss the use of ultrasound as an adjunct to mammography with patients who have dense breast tissues.  They should explain the benefits and also potential to lead to additional percutaneous biopsies in easy to understand terms and arrive at a shared decision consistent with individual patient’s preferences and values.

The analysis of data from the reviewed studies suggest that potential benefits and harms could accrue if screening ultrasound is added to mammographic screening of women with dense breast tissue.

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