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MRI Scan Center - Cedar Rapids, IA

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Cedar Rapids, Iowa

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MRI (Magnetic Resonance Imaging Scan)

What is an MRI scan?

An MRI (or magnetic resonance imaging) scan is a radiology technique that uses magnetism, radio waves, and a computer to produce images of body structures. The MRI scanner is a tube surrounded by a giant circular magnet. The patient is placed on a moveable bed that is inserted into the magnet. The magnet creates a strong magnetic field that aligns the protons of hydrogen atoms, which are then exposed to a beam of radio waves. This spins the various protons of the body, and they produce a faint signal that is detected by the receiver portion of the MRI scanner. The receiver information is processed by a computer, and an image is produced.

The image and resolution produced by MRI is quite detailed and can detect tiny changes of structures within the body. For some procedures, contrast agents, such as gadolinium, are used to increase the accuracy of the images.

When are MRI scans used?

An MRI scan can be used as an extremely accurate method of disease detection throughout the body. In the head, trauma to the brain can be seen as bleeding or swelling. Other abnormalities often found include brain aneurysms, stroke, tumors of the brain, as well as tumors or inflammation of the spine.

Neurosurgeons use an MRI scan not only in defining brain anatomy but in evaluating the integrity of the spinal cord after trauma. It is also used when considering problems associated with the vertebrae or intervertebral discs of the spine. An MRI scan can evaluate the structure of the heart and aorta, where it can detect aneurysms or tears.

It provides valuable information on glands and organs within the abdomen, and accurate information about the structure of the joints, soft tissues, and bones of the body. Often, surgery can be deferred or more accurately directed after knowing the results of an MRI scan.

What are the risks of an MRI scan?/...

Recommended Reading Related to MRI (Magnetic Resonance Imaging Scan)

Stroke »

What is a stroke?

Brain cell function requires a constant delivery of oxygen and glucose from the bloodstream. A stroke, or cerebrovascular accident (CVA), occurs when blood supply to part of the brain is disrupted, causing brain cells to die. Blood flow can be compromised by a variety of mechanisms.

Blockage of an artery

  • Narrowing of the small arteries within the brain can cause a lacunar stroke, (lacune means "empty space"). Blockage of a single arteriole can affect a tiny area of brain causing that tissue to die (infarct).
  • Hardening of the arteries (atherosclerosis) leading to the brain. There are four major blood vessels that supply the brain with blood. The anterior circulation of the brain that controls most motor  activity, sensation, thought, speech, and emotion is supplied by the carotid arteries. The posterior circulation, which supplies the brainstem and the cer...

Emergency Contact for Cedar Rapids

  • In case of Emergency, call 911

Nearby Cedar Rapids Hospitals *

St Luke's Hospital
1026 A Ave NE
Cedar Rapids, IA 52402
(319)369-7211

Mercy Medical Center Cedar Rapids
701 Tenth St SE
Cedar Rapids, IA 52403
(319)398-6011

Virginia Gay Hospital
502 N Ninth Ave
Vinton, IA 52349
(319)472-6200

Iowa City VA Medical Center
601 Highway 6 W
Iowa City, IA 52246
(319)338-0581

Jones Regional Medical Center
1795 Highway 64 E
Anamosa, IA 52205
(319)462-6131

University of Iowa Hospitals and Clinics
200 Hawkins Dr
Iowa City, IA 52242
(319)356-1616

Mercy Hospital Iowa City
500 E Market St
Iowa City, IA 52245
(319)339-0300

Marengo Memorial Hospital
300 W May St
Marengo, IA 52301
(319)642-5543

Mental Health Institute
2277 Iowa Ave
Independence, IA 50644
(319)334-2583

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