Magnetic resonance imaging (MRI) is a test that uses powerful magnets, radio waves, and a computer to make detailed pictures inside your body. Your doctor can use this test to diagnose you or to see how well you’ve responded to treatment. Unlike X-rays and CT scans, an MRI doesn’t use radiation.
CT scan slices
A computerized tomography (CT) scan combines a series of X-ray images taken from different angles and uses computer processing
to create cross-sectional images, or slices, of the bones, blood vessels and soft tissues inside your body.
CT scan images provide more detailed information than plain X-rays do.
A CT scan has many uses, but is particularly well-suited to quickly examine people who may have internal injuries from car accidents or other types of trauma.
A CT scan can be used to visualize nearly all parts of the body and is used to diagnose disease or injury as well as to plan medical, surgical or radiation treatment.
Why it’s done. Your doctor may recommend a CT scan to help:
Diagnose muscle and bone disorders, such as bone tumors and fractures
Pinpoint the location of a tumor, infection or blood clot
Guide procedures such as surgery, biopsy and radiation therapy
Detect and monitor diseases and conditions such as cancer, heart disease, lung nodules and liver masses
Monitor the effectiveness of certain treatments, such as cancer treatment
Detect internal injuries and internal bleeding.