Did the doctor tell you to have a CT Urogram? (CT Urogram) Let's talk about this.

Maybe you have a constant backache, or you've seen something like blood in your urine and went to see a doctor. Then, when the doctor told you that you need to have a 'CT Urogram', you may have felt a little scared and curious. You may have heard of a 'CT scan', but what is this 'Urogram'? What does it look for? Will it hurt? You may have many questions like these in your mind. Don't worry, today we will talk about everything in a simple way that will clear up all your doubts.

What is a CT Urogram in simple terms?

Simply put, a CT Urogram is a special CT scan that takes a very detailed look at your urinary system. It mainly looks at your kidneys, bladder, and the two thin tubes that carry urine from the kidneys to the bladder (ureters) .

This test does something different than a regular CT scan. It involves injecting a special liquid, called a contrast dye, into your body. When this dye travels through your bloodstream and into your urinary system, it makes those organs very visible on X-ray images.

Think of it this way: a regular X-ray takes a 2D picture of just one side. But a CT scan is like a donut. As you pass through it, the X-ray beam spins 360 degrees around you, taking pictures of your body in tiny "slices," like cross-sections of a loaf of bread. Then a computer puts all these pictures together to create a 3D image of the inside of your body. This allows the doctor to see every nook and cranny of your urinary system.

When would a doctor recommend a CT Urogram?

If your doctor suspects that there is something wrong with your urinary system, this test can be very helpful in finding out exactly what it is. Let's look at the table below to see what such cases are.

How should you prepare before this scan?

Before the scan, the doctor or hospital staff will ask you a few questions and give you instructions on what to do.

Questions you can ask:

• Do you have any other medical conditions? (For example, diabetes, kidney problems)
• Are there any allergies to contrast dye or iodine?
• Are you pregnant, or do you suspect you are pregnant?
• Are you taking any medications? It is especially important to be aware of things like diabetes medications (metformin) , pain relievers (NSAIDs) , and blood thinners (warfarin) .

Usually, before this scan, you may also have a blood test to check your kidney function . This will help determine the type of contrast dye that is right for you.

Instructions you will receive before the scan:

• You may be asked to drink plenty of water a few hours before the scan.
• They tell you to drink water and not urinate . Then the bladder is full and large enough to see what's inside. It's like blowing up a balloon and making it bigger so you can see if there's anything inside.
• Wear clothes that are as comfortable as possible. You will often need to wear a hospital gown.
• You will need to remove all metal jewelry, such as watches, earrings, and necklaces. You may also be asked to remove dentures and hearing aids. Metal objects can interfere with the scan images.

What happens during the scan?

At this time, all you have to do is follow the instructions given by the staff.

1. Lying on a bed: You will be asked to lie face up on a bed that is connected to the scanner. You may also be asked to turn on your side. You may be given pillows to keep your body comfortable and stable.

2. Contrast dye injection: A nurse will insert a small cannula into a vein in your arm or hand and inject the contrast dye into your body through it. You may feel a slight stinging sensation when the needle is inserted, but there will be no pain afterward.

3. Feelings of the dye: You may feel a warm sensation as the dye goes into your body. It's like a warm feeling when you're embarrassed. Some people may also experience a salty or metallic taste in their mouth . They may also feel like they suddenly need to urinate . All of these feelings will go away in a few minutes, so don't worry. These are normal.

4. Scanning: Your bed will then slowly move into the doughnut-shaped machine. It is important to remain still during this time. Just as moving while taking a photo can blur the image, so can moving. The machine is relatively quiet while taking the pictures. You may hear a slight noise as the bed moves back and forth.

Normally, the entire process takes about an hour. But you're only inside the scanner for 10-30 minutes. Each image takes a very short time, about 10-30 seconds.

Are there any risks in this?

A CT Urogram is generally a very safe test. However, as with any medical test, there are some very small risks. It's good to be aware of them.

Some frequently asked questions

Does a CT Urogram hurt?

No. This is not a painful test. The only pain you will feel is a slight stinging sensation when the cannula is inserted into your arm.

What is the difference between a CT scan and a CT Urogram?

A CT Urogram is a type of CT scan. Not all CT scans are the same. A CT Urogram is specifically designed to look at the urinary system. It usually uses contrast dye. Other CT scans can look at any part of the body, and sometimes they are done without dye.

Are CT Urogram and Cystoscopy the same?

No. These two are completely different.

• A CT Urogram is a non-invasive imaging test performed externally.
• Cystoscopy is an invasive procedure. A flexible tube (cystoscope) about the size of a pencil with a camera at the end is passed through your urethra and into your bladder, allowing you to see the inside of your bladder.