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What is CTU?
CT Urography is a sophisticated radiological examination designed to evaluate the urinary tract (kidneys, ureters and bladder) using computed tomography (CT). It has the added advantage of visualizing all of the other intra-abdominal and pelvic structures as well.

Common Uses
An CTU is commonly used to detect kidney stones and find the cause of:
• Pain in the lower back or side
• Blood in the urine (hematuria)
• Frequent urination or difficulty with urination

Exam Preparations

We ask that you have nothing to eat or drink for four hours prior to your study when contrast is administered. You may take essential medications with a small amount of water.

You should wear loose, comfortable clothing like sweats. In most cases you can wear these in the machine. You may, however, need to change into a gown.

During the Exam
The exam generally takes between 15 and 45 minutes. When you are ready to begin, the technologist will help you into a comfortable position on a sliding table. Usually you will lie face up and the table will automatically move into the large donut shaped scanner. While inside the scanner, you will be able to see your outside surroundings. The technologist will talk with you from the control room where they can see you at all times. When you are ready, the scanner is turned on. The ring rotates around your body as it sends and picks up x-rays. It is very important to lie completely still. Periodically, the technologist may use the intercom to ask you to hold your breath for short periods of time. This helps to create better pictures when scanning the abdomen or chest. Most CT examinations take 30 minutes.

Sometimes a contrast agent, commonly used to enhance the visibility of certain tissues or blood vessels, may be required to obtain the clearest image. The agent is injected through an intravenous line. Contrast agents are only used when necessary.

The CT scan itself is extremely fast. In fact, it will probably take you longer to get in the correct position on the table than it will to conduct the scan. Your technologist will ask you to hold your breath during the scanning usually about 18-20 seconds.

After the Exam
Following your exam, your CT scan will be reviewed by one of our radiologists. Our goal is to provide your physician with a report within 24 hours of the examination.


 
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