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Prostate Cancer: MRI

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An MRI is a test that produces very clear pictures of the human body without the use of X-rays. Instead, MRI uses a large magnet, radio waves, and a computer to produce these images.

In prostate cancer patients, MRI may be used to examine the prostate and nearby lymph nodes to distinguish between benign (noncancerous) and malignant (cancerous) areas.

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Understanding Prostate Cancer -- Symptoms

There are no warning signs of early prostate cancer. Once a tumor causes the prostate gland to swell, or once cancer spreads beyond the prostate, the following symptoms may happen: A frequent need to urinate, especially at night Difficulty starting or stopping a stream of urine A weak or interrupted urinary stream Leaking of urine when laughing or coughing Inability to urinate standing up A painful or burning sensation during urination or ejaculation Blood in urine or...

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Is MRI Examination Safe?

Yes. The MRI examination poses no risk to the average patient if appropriate safety guidelines are followed.

People who have had heart surgery and people with the following medical devices can be safely examined with MRI:

  • Surgical clips or sutures
  • Artificial joints
  • Staples
  • Cardiac valve replacements (except the Starr-Edwards metallic ball/cage)
  • Disconnected medication pumps
  • Vena cava filters
  • Brain shunt tubes for hydrocephalus

Some conditions may make an MRI examination not a good idea. Tell your doctor if you have any of the following conditions:

How Long Is the MRI Exam?

Allow 1 1/2 hours for your MRI exam. In most cases, the procedure takes 45 to 60 minutes, during which several dozen images may be taken.

What Happens Before the Exam?

Personal items such as your watch, wallet (including any credit cards with magnetic strips – should not be brought into the room with the MRI machine in it.The credit cards will be erased by the magnet), and jewelry should be left at home, or removed prior to the MRI scan. Secured lockers should be available to store personal items.

What Happens During the Exam?

You will be asked to wear a hospital gown during the MRI scan.

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