resonance Magnetic imaging
BRAIN AND HEAD. MRI technology was developed because of the need for brain imaging. It
is one of the few imaging tools that can see through bone (the skull) and deliver high-quality
pictures of the brain's delicate soft tissue structures. MRI may be needed for patients with
symptoms of a brain tumor, stroke , or infection (like meningitis). MRI may also be needed
when cognitive or psychological symptoms suggest brain disease (like Alzheimer's or
Huntington's diseases, or multiple sclerosis), or when developmental retardation suggests a birth
defect. MRI can also provide pictures of the sinuses and other areas of the head beneath the face.
In adult and pediatric patients, MRI may be better able to detect abnormalities than compared to
computed tomography scanning.
SPINE. Spinal problems can create a host of seemingly unrelated symptoms. MRI is particularly
useful for identifying and evaluating degenerated or herniated spinal discs. It can also be used to
determine the condition of nerve tissue within the spinal cord.
JOINT. MRI scanning is most commonly used to diagnose and assess joint problems. MRI can
provide clear images of the bone, cartilage, ligament, and tendon that comprise a MRI joint. can
be used to diagnose joint injuries due to sports, advancing age, or arthritis. MRI can also be used
to diagnose shoulder problems, such as a torn rotator cuff. MRI can also detect the presence of an
otherwise hidden tumor or infection in a joint, and can be used to diagnose the nature of
developmental joint abnormalities in children.
SKELETON. The properties of MRI that allow it to see through the skull also allow it to view
the inside of bones. Accordingly, it can be used to detect bone cancer, inspect the marrow for
leukemia and other diseases, assess bone loss (osteoporosis), and examine complex fractures.
HEART AND CIRCULATION. MRI technology can be used to evaluate the circulatory
system. The heart and blood flow provides a good natural contrast medium that allows structures
of the heart to be clearly distinguished.
THE REST OF THE BODY. Whereas computed tomography and ultrasound scans satisfy most
chest, abdominal, and general body imaging needs, MRI may be needed in certain circumstances
to provide better pictures or when repeated scanning is required. The progress of some therapies,
like liver cancer therapy, needs to be monitored, and the effect of repeated x-ray exposure is a
concern.