Transrectal ultrasound (transrectal, TRUS) is a test that very accurately shows abnormalities in the anus and rectum, such as abscesses, fissures or fistulas, as well as neoplastic changes. Thanks to transrectal ultrasound, the doctor can choose the best treatment method. What are the indications for the test? How to prepare for it?

Transrectal ultrasound (transrectal, TRUS)is a test that very accurately shows abnormalities in the anus and rectum, and in some cases also in the prostate gland. Thanks to this, the doctor can choose the best method of treatment, as well as assess the effects of his work after surgery in the area of ​​the anus and rectum.

transrectal (transrectal) ultrasound - indications

Transrectal (transrectal) ultrasound is performed in the case of:

  • problems with bowel movements, especially in the case of gas and / or stool incontinence. This may indicate a failure of the sphincters
  • pain in the anus and in the anal area. This may indicate conditions such as anal abscesses, anal fistulas, anal fissures
  • inflammatory lesions around the anus (e.g. in Crohn's disease)
  • suspected cancer of the anus or rectum
  • performing an operation in the anal canal (to assess the effects of the work), as well as cancer surgery (monitoring the patient for local recurrence of the tumor)

The transrectal ultrasound can also complement the proctological examination (the so-called per rectum examination). Transrectal (transrectal) ultrasound of the prostate gland (TRUS) is performed, inter alia, in in case of suspicion of cancer and some forms of prostatitis.

Transrectal (transrectal) ultrasound - preparation

People with suspected anal abscess, anal fistula or anal sphincter insufficiency do not need to prepare for the examination (e.g. take laxatives or enemas). One should only make sure that the meals on the day before the examination should be easily digestible, not causing flatulence.

Patients with suspected rectal or rectal tumors should clean the intestines with a rectal enema solution prior to surgery.

You do not need to go to the test on an empty stomach, but you should take 2-3 hours before the testto refrain from eating.

Transrectal (transrectal) ultrasound - what is it?

The patient lies down on the table on his left side with his knees drawn up to his stomach. The doctor puts a condom and gel over the ultrasound probe (the shape and size of which are similar to a finger) and inserts it into the anus a few centimeters deep. The device sends the image to the monitor where the doctor observes the course of the examination. The patient is not given anesthesia. The test takes about half an hour.

Transrectal (transrectal) ultrasound - contraindications

Contraindication to transrectal ultrasound is perforation - that is, "perforation" of the anus or rectum. The examination may also not be possible in the case of significant narrowing of the anus.

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