Study: MRIs delay breast cancer treatment

September 8, 2008 2:35:07 PM PDT
Women who get an MRI scan after breast cancer diagnosis are more likely to get a mastectomy than women who have only a mammogram.Doctors at Philadelphia's Chase Research Center studied 577 breast cancer cases. They found 28 percent of patients who had an MRI ended up having a mastectomy versus 19.5 percent among non-MRI cases.

Researchers say patients getting the MRI had a three-week delay in the start of their treatment and higher false-positive incidences from MRIs might be causing some patients to get unnecessary mastectomies.