Ultrasound

Ultrasound (or "sonography") is a procedure that uses high-frequency sound waves to show what is inside your body.

Because the body contains over 90% water, sound waves can be used in some parts of the body just as sonar is used in the ocean. Each time the sound hits a tissue interface, like a blood vessel, an echo is sent back. Sophisticated, high-speed computers can use these echoes to create a picture of your internal organs. This results in a very detailed examination which aids the physician in his or her diagnosis.

In addition, at GCMI, some information is displayed using colour Doppler images and includes accurate blood flow measurements. This is called duplex Doppler.

For an ultrasound test, a gel will be applied to the area being examined. A small probe, called a transducer, will be passed over the surface of the area, producing a sensation of light pressure on the skin. The gel helps the transducer to move more smoothly over the area. While the images are made, you will be asked to remain very still and may be asked to control your breathing. You may also be asked to turn on your side or lie on your stomach. You will be asked to wait while the images are reviewed by the Radiologist. Occasionally, more images may be needed.

The length of the exam varies with the type of ultrasound you are having. Please check with us when making your appointment as to the estimated time required for your examination.

Depending on the examination that was ordered, for example, for a pelvic / obstetric examination you may experience some discomfort due to the fullness of the bladder.

For some pelvic examinations it is necessary to insert a special type of transducer into the vagina. It is smaller than the instrument used in a routine pap smear examination.

Patient Preparation

There are no general set of instructions for all ultrasound examinations. Your physician will give you instructions on how to prepare for your specific exam. It s important to follow these instructions to ensure the most accurate diagnostic results.

In addition, please bring any relevant previous ultrasound films so that our radiologist can use them for comparison.

Preparation for other examinations can vary. Click here for more information on patient preparation for specific examinations.

Examination Locations

Ultrasound can be performed at all our clinics. Click here for a detailed list of our clinics and their contact details.