Magnetic Resonance Imaging (MRI)

Magnetic Resonance Imaging (MRI) is a medical imaging technique that uses strong magnetic fields and radio waves to produce detailed images of the soft tissue inside the body. Unlike X-rays or CT scans, it doesn't use ionising radiation.

In breast cancer detection, breast MRI is more sensitive than Mammography, so it's used to screen people at high risk and to assess the extent of a known cancer. However, it's more expensive and slower, so it isn't used for routine screening.

See also Ultrasound Imaging and Positron Emission Tomography (PET).