Prostate ultrasound involves a probe about the size of a finger that is inserted a short distance into the rectum. This probe produces harmless high-frequency sound waves, inaudible to the human ear, that bounce off the surface of the prostate. The sound waves are recorded and transformed into video or photographic images of the prostate gland.
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The probe can provide images at different angles to help your doctor estimate the size of your prostate and detect any abnormal growths.
A prostate biopsy uses transrectal ultrasound (through the rectum’s lining) imaging to guide several small needles through the rectum wall into areas of the prostate where abnormalities are detected. The needles remove a tiny amount of tissue. Usually six or more biopsies are taken to test various areas of the prostate. The tissue samples are then analyzed in a laboratory. The results will help doctors diagnose disorders and diseases in the prostate. If cancer is identified, the doctor will be able to grade the cancer and determine its aggressiveness or likelihood of spreading.
Some doctors perform the biopsy through the perineum (skin between the scrotum and rectum). Researchers are investigating alternative biopsy procedures in efforts to maximize the accuracy of these results.
What Happens Before The Procedure?
Here's how to get ready for the ultrasound and biopsy.
Tell your doctor if you have a lung or heart condition or any other diseases, or if you are allergic to any medicines.
Tell your doctor if you have an artificial heart valve or if you have ever been told you need to take antibiotics before a dental or surgical procedure. If you have any of these conditions, you will be given antibiotics to take before the biopsy.
Tell your primary doctor if you are taking Coumadin, Persantine, Plavix or other blood thinners. With your doctor's knowledge, these medicines will need to be discontinued about one week before the procedure. Your primary doctor may prescribe an alternate method for thinning your blood before the procedure.
The week before the procedure, do NOT take aspirin, products containing aspirin, or anti-inflammatory drugs (such as Advil or Motrin, Naprosyn or Indocin).
* Please note: Do not discontinue any medication without first consulting your primary or referring physician.
You will receive antibiotics to take the night before the procedure or the morning of the procedure to prevent infection.
Eating and drinking
Eat a light breakfast or lunch before the procedure and drink only clear liquids (which include juices, broths, and gelatin) the morning of the procedure.
You will receive one enema before the procedure to empty your colon and minimize the risk of infection during the procedure. You may be asked to use the enema at home. Try to hold the enema solution for at least five minutes before releasing it. Eat a light breakfast or lunch before the procedure and drink only clear liquids (which include juices, broths, and gelatin) the morning of the procedure.