Private companies are capitalizing on this quest for information. Grail’s Galleri blood test screens for more than 50 ...

MRI preparation depends on the type of scan, the area of your body being scanned, and whether the scan requires contrast dye. It’s important to discuss prep with your doctor beforehand. In rare, ...

An advantage of whole-body MRIs over CTs is that they use magnets and radio waves, which eliminate the type of radiation linked to cancer. But that doesn’t mean they’re risk-free or the right choice ...

Computed tomography (CT) scans and magnetic resonance imaging (MRI) are two types of imaging procedures. They both create detailed images of the internal body structures. While CT scans use X-rays to ...