Imaging Learn about imaging tests and technology. 8 mammogram facts to know Learn why mammography is so important and how the test works. (3 min. read) The Basics Tests you'll need after you've been diagnosed with breast cancer What to know about lung nodules Steps to a successful mammogram Should you be screened for lung cancer? Noninvasive heart tests More information Medical radiation: A cause for concern? Sharper image: CT scanning takes detailed pictures of your body's interior How dense are you? A guide to testing your bone mass Metals and MRI exams don't mix 8 mammogram facts to know MRI: A magnetic snapshot of your body Imaging and radiation facts and myths Diagnosing heart disease A guide to cardiac catheterization Related stories