Transrectal Ultrasonography

An ultrasound is an examination using high-frequency sound waves to create images of tissue layers beneath the surface. Ultrasound examination involves no radiation and is a very safe procedure. It provides additional information about rectal polyps, rectal cancer, perianal infection, and sphincter muscle injuries. At Fairfax Colon and Rectal Surgery, your examination will be performed by your physician who has special training in ultrasound exams There will also be an assistant who also has special training for this procedure.

Preparation for Ultrasound

The only preparation necessary is an enema to empty the rectum. You need to arrive fifteen minutes before the scheduled appointment to allow time for registration and to prepare the equipment for the exam.

The Examination

The doctor and assistant will explain the exam to you and answer any questions you have. You will be asked to lie on your left side. The doctor will begin by doing a rectal exam. Depending on the reason for the exam, an instrument called a proctoscope may be inserted into the rectum. The ultrasound transducer is then inserted either through the proctoscope or by itself. A transducer sends and receives sound waves that are used to create images on the screen.
The transducer is passed back and forth over the area of concern to fully examine it.  At intervals photographs of the ultrasound image are taken to document the findings.

After Ultrasound

Your doctor will explain the findings to you before you leave. Other doctors involved in your care will also receive the results. Ultrasound examinations have no lasting side effects and you can expect to resume all your normal activities after the procedure.

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