U.S. Health Officials are starting a huge study to find out if 3-D mammogramms are better than the regular X-rays most commonly offered to women. 165,000 women are expected to take part in the research what could lead to individualized screening in the future. Sabitri Jaipersaud gets a mammogram every year after a scare she had when she was pregnant with her son. A doctor found abnormalities in her breast. It was benign, but the experience made her determined to be diligent. That’s what motivated Jaipersaud to take part in one of the largest randomized studies of mammographies in decades in the United States. Funded by the National Cancer Institute, it will compare traditional mammograms with a 3-D version to find if the newer, often pricier choice really improves screening for breast cancer.