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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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Pesticide exposure during pregnancy may increase autism risk
June 24th, 2014
02:36 PM ET

Pesticide exposure during pregnancy may increase autism risk

Scientists have long hypothesized that chemicals found in our environment play a role in causing autism. Research published this week in Environmental Health Perspectives supports that theory, finding children whose mothers are exposed to agricultural pesticides during pregnancy may be at increased risk for autism spectrum disorders, or ASD.

Researchers at the University of California, Davis, looked at the medical records of 970 participants. They found pregnant women who lived within a mile of an area treated with three different types of pesticides were at a two-thirds higher risk of having a child with ASD or developmental delays. These pesticide-treated areas included parks, golf courses, pastures and roadsides.

The study investigated the use of three classes of pesticides: organophosphates, which include the widely used insecticide chlorpyrifos, as well as pyrtheroids and carbamates.
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Filed under: Autism • Conditions • Environment • Pregnancy

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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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