MRI (magnetic resonance imaging) uses a combination of magnetism, radio waves and computer processing to create detailed images of nearly every body part, including bones, joints, organs and tiny blood vessels. Unlike imaging techniques that use X-ray, with MRI, there’s no exposure to radiation. It is among the safest and most versatile of imaging methods. Since its introduction for medical purposes in the 1970s, advances in MRI technology have greatly improved image quality, speed and convenience for patients, while giving physicians a safe and versatile tool for screening, diagnosing, surgical planning, treatment and reconstruction.
Physicians typically prescribe MRI testing at PENRAD Imaging to diagnose or treat the following:
- Cysts, tumors and cancer throughout the body
- Blockages or enlargement of blood vessels and certain heart problems
- Diseases of the liver, gallbladder, pancreas and other abdominal organs
- Abnormalities and diseases of the reproductive organs, including the causes of infertility, in both women and men
- Orthopedic injuries or disorders
Using MR images taken by PENRAD Imaging, physicians can locate and identify:
- Causes of pain
- Degenerative disorders (arthritis, deterioration of joint surfaces)
- Fractures not visible with use of X-ray
- Herniated discs
- Swelling or bleeding in the tissues in and around joints and bones
- Small tears and injuries to tendons, ligaments, and muscles
- Spinal cord trauma
Types of MRI
3T MRI
The 3T MRI is one of the most powerful and sophisticated MRI scanners currently available. The “T” in 3T MRI stands for Tesla, the unit of measurement of magnetic field strength. 3T systems generate a magnetic field twice as strong as traditional MRI scanners and many times the strength of some open MRI systems. The 3T’s stronger magnetic field produces images of exceptional clarity and anatomical detail.
Wide Bore MRI
For those patients who are claustrophobic or unable to tolerate the physical restrictions of a traditional MRI scanner, PENRAD Imaging offers the option of a wide-bore system. The bore refers to the opening of the MRI scanner; the wide-bore scanner is more spacious than a traditional scanner.
Breast MRI
The advanced technology of MRI gives radiologists the ability to distinguish cancerous tumors from other types of soft tissue. This makes MRI particularly valuable in the fight against breast cancer. However, despite its sensitivity, Breast MRI is most effective when used to supplement, not replace, standard cancer screening methods, such as mammography. Used in combination with these other imaging techniques, physicians can make a more complete and accurate assessment of the nature and extent of cancer and other breast diseases.
Reasons physicians prescribe Breast MRI
- To identify breast cancer early in high-risk patients and in women with dense breast tissue
- To confirm, reject or clarify the findings of a mammogram or ultrasound exam
- To plan treatment or surgery
- To assess the effectiveness of treatment
- To check the condition of breast implants
MRA
Magnetic resonance angiogram (MRA) is a type of magnetic resonance imaging that can help determine the health of your blood vessels, most commonly in the neck, brain, chest, kidneys and legs. MRA can help diagnose blockages, aneurysms (bulges), tears, and narrowing of the arteries and blood vessels.
What to Expect
Most MRI examinations do not require specific preparation, but include certain general precautions. When you schedule your exam, let us know if you are claustrophobic so we can make appropriate arrangements. Remove loose, foreign or metal objects prior to the exam (such as jewelry, dentures, watches, credit cards, body piercing rings, hair pins, and trans-dermal patches). Continue taking prescribed medications. You will be asked to change into a hospital gown free of any metal. Your hair should be dry and free of wet styling gel. If the exam involves the head or neck, you may be asked to remove eye makeup. You must let the technologist know if you are or think you might be pregnant or if you are nursing. Previous bloodwork may be required for patients with certain conditions. This will first be discussed and determined with you and your healthcare provider prior to your appointment.
You will be positioned on a special table that slides into the MRI system. The technologist will perform the MRI scan from a control unit in an adjoining room, communicating with you by means of an intercom; music or earplugs will be supplied for your comfort. The actual scanning can take anywhere from 15 to 90 minutes depending on the scan(s) ordered, during which you will hear clicks, hammering sounds and other noises. Those sounds are normal.
After the exam
You are free to leave and carry on with your normal activities. A board-certified radiologist will interpret your results and provide a formal report to your healthcare provider.
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