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MRI Scan Center - Lancaster, PA

WebMD Physician Directory

Lancaster, Pennsylvania

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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 Lancaster

  • In case of Emergency, call 911

Nearby Lancaster Hospitals *

Lancaster General Hospital
555 N Duke St
Lancaster, PA 17604
(717)544-5511

Lancaster Regional Medical Center
250 College Ave
Lancaster, PA 17603
(717)291-8211

Lancaster General Women & Babies Hospital
690 Good Dr
Lancaster, PA 17604
(717)544-3700

Lancaster Rehabilitation Hospital
675 Good Dr
Lancaster, PA 17604
(717)394-7500

Heart of Lancaster Regional Medical Center
1500 Highlands Dr
Lititz, PA 17543
(717)625-5000

Ephrata Community Hospital
169 Martin Ave
Ephrata, PA 17522
(717)733-0311

Lebanon VA Medical Center
1700 S Lincoln Ave
Lebanon, PA 17042
(717)272-6621

The Good Samaritan Hospital
4th & Walnut Sts
Lebanon, PA 17042
(717)270-7500

Memorial Hospital
325 S Belmont St
York, PA 17403
(717)843-8623

Philhaven
283 S Butler Rd
Mount Gretna, PA 17064
(717)273-8871

Wernersville State Hospital
Rte 422 & Sportsman Rd
Wernersville, PA 19565
(610)678-3411

York Hospital
1001 S George St
York, PA 17403
(717)851-2345

Penn State Children's Hospital
500 University Dr
Hershey, PA 17033
(717)531-8521

Penn State Hershey Medical Center
500 University Dr
Hershey, PA 17033
(717)531-8521

HEALTHSOUTH Rehabilitation Hospital of York
1850 Normandie Dr
York, PA 17408
(717)767-6941

HEALTHSOUTH Reading Rehabilitation Hospital
1623 Morgantown Rd
Reading, PA 19607
(610)796-6000

Jennersville Regional Hospital
1015 W Baltimore Pike
West Grove, PA 19390
(610)869-1000

Coatesville VA Medical Center
1400 Black Horse Hill Rd
Coatesville, PA 19320
(610)384-7711

Brandywine Hospital
201 Reeceville Rd
Coatesville, PA 19320
(610)383-8000

The Reading Hospital & Medical Center
6th Ave & Spruce St
Reading, PA 19612
(610)988-8000

St Joseph Medical Center
2500 Bernville Rd
Reading, PA 19605
(610)378-2000

Community General Osteopathic Hospital Pinnacle Health
4300 Londonderry Rd
Harrisburg, PA 17109
(717)652-3000

Helen M Simpson Rehabilitation Hospital
4300 Londonderry Rd
Harrisburg, PA 17109
(717)920-4300

Saint John Vianney Hospital
151 Woodbine Rd
Downingtown, PA 19335
(610)269-2600

Harrisburg Hospital
111 S Front St
Harrisburg, PA 17101
(717)782-3131

Upper Chesapeake Medical Center
500 Upper Chesapeake Dr
Bel Air, MD 21014
(443)643-1000

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