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June 24th, 2014
06:14 PM ET

Do I need a 3-D mammogram?

Digital breast tomosynthesis, better known as 3-D mammography, can find more invasive, and in some cases more dangerous, cancers than a traditional digital mammogram, a new study published in the Journal of the American Medical Association this week concludes.

But do you need one?

Approved by the Food and Drug Administration in 2011 as a supplement to digital mammography, tomosynthesis creates a 3-D reconstruction of the breast tissue, giving radiologists a clearer view of overlapping slices. This new study found using the combination of digital and 3-D mammography reduces false alarms and unnecessary call backs by 15% in all groups of patients, including younger women and women with dense breast tissue.

The study was funded by Hologic, the manufacturer of the 3-D imaging machine, and the National Cancer Institute.
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Studies question fatty acids' heart benefits
March 17th, 2014
05:00 PM ET

Studies question fatty acids' heart benefits

Many health organizations, including the American Heart Association, recommend eating polyunsaturated fatty acids - particularly those called omega-3s and omega-6s - for heart health.  But new research once again casts doubt on whether these fatty acids have any effect on reducing your risk of heart disease.

A meta-analysis published Monday in the journal Annals of Internal Medicine did not find significant evidence to support eating a diet high in polyunsaturated fatty acids and low in saturated fats. It didn't seem to matter whether the fats came from dietary sources or supplements.

"Current evidence does not clearly support guidelines that encourage high consumption of polyunsaturated fatty acids and low consumption of total saturated fats," the study authors concluded.

And a second study, published in the journal JAMA Internal Medicine, found that supplementing a diet with long-chain omega-3 polyunsaturated fatty acids did not reduce study participants' heart disease risk.
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About this blog

Get a behind-the-scenes look at the latest stories from CNN Chief Medical Correspondent, Dr. Sanjay Gupta, Senior Medical Correspondent Elizabeth Cohen and the CNN Medical Unit producers. They'll share news and views on health and medical trends - info that will help you take better care of yourself and the people you love.

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