Some types of scans include X-rays, computed tomography (CT), magnetic resonance imaging ... Medical professionals use MRI scans to create detailed, three-dimensional images of structures inside ...

After the big, powerful magnetic field comes on, the MRI machine activates three magnets that produce smaller magnetic fields that are weaker than the main field by about 80-times, if not more.

This enables scientists to tell the difference between types of tissue and whether they are healthy. One of the biggest risks with MRI comes from the incredibly strong magnets that are used ...

Magnetic resonance imaging (MRI ... You may need to wait to have an MRI until after your first 3 months of pregnancy or have a different test. Your doctor probably won't use contrast dye at ...

The contrast is less likely to cause allergic reactions than other types, but it might feel cool when it’s injected into your joint. The MRI machine is a long, narrow, magnetic tube with open ends.