Radiology

DISIDA (Hepatobiliary) Scan

DISIDA Scan
DISIDA Scan
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What is a DISIDA Scan?

What should you do prior to the exam?

What should you do when you arrive?

What should you expect during the exam?

What should you do after the exam?

Test results

What is a DISIDA Scan?

A DISIDA scan is an exam of the gallbladder and the hepatobiliary system (the ducts connecting the gallbladder to the liver and the small bowel). This exam requires the use of a radiopharmaceutical through an IV catheter.

What should you do prior to the exam?

Your child should not receive barium (radiographic contrast agent) 24 hours prior to the DISIDA scan.

Your child cannot have morphine or morphine derived medications for 24 hours prior to the scan.

The patient must not have anything to eat or drink for 4 hours prior to the scan. *Exception, if your child has biliary atresia, they do not need to follow this step.

If your child requires sedation you will receive additional instructions to follow.

Dress your child comfortably, in clothes that are easily removed. Your child may be given a gown to change into for the procedure.

We have a large variety of video entertainment to choose from, however, your child can also bring along his/her favorite video or DVD to watch during the exam.

You may want to bring a snack or drink for your child to have after the exam.

Note: Parents will be allowed to accompany the child into the exam room. It may be helpful to make other arrangements for siblings.

What should you do when you arrive?

If your appointment is scheduled at the Main Hospital:

You must check in to Outpatient Registration, on the third floor of the Main Hospital, 45 minutes prior to your scheduled appointment. This is where your registration process occurs.

The law requires that you bring a prescription from your doctor's office stating the exam to be done and the reason for it.

If your insurance requires a referral, it must be presented at the time of registration. Proof of insurance will also need to be provided at this time.

Once the registration process is completed, the Nuclear Medicine Department will be notified. A technologist or nurse will come out to the central registration area and bring you and your child to a room for IV placement.

If your appointment is scheduled at the Pediatric Imaging Center at King of Prussia:

You must check in at the main registration desk, located in the main waiting room, 45 minutes prior to your scheduled appointment. This is where your registration process occurs.

The law requires that you bring a prescription from your doctor's office stating the exam to be done and the reason for it.

If your insurance requires a referral, it must be presented at the time of registration. Proof of insurance will also need to be provided at this time.

Once the registration process is completed, you will be directed to the Radiology waiting room. The Nuclear Medicine technologist will be notified and a technologist or nurse will come out to the Radiology waiting room and bring you and your child to a room for IV placement.

What should you expect during the exam?

A technologist or nurse will place an IV in your child for the radiopharmaceutical (tracer) injection needed for this exam. This IV tube will be placed in the child's arm, hand, or foot. Your child will only feel a little discomfort, like a mild pinch. Once the child has proper IV access, the procedure can begin.

The technologist will ask why the DISIDA Scan is being done, and explain the study to you and your child. The technologist will inject the tracer through the IV line. A set of images will be taken lasting approximately 1 hour. Your child will have to lie still during the imaging portion of the test. The camera will be above the table and will come close to but will not touch your child. The nuclear medicine physician may then require additional imaging, after viewing the initial images. Delayed images may be necessary for up to four hours after the initial images and in certain circumstances possibly 24 hours.

DISIDA with CCK

Your child's physician may order a DISIDA scan with CCK (cholecystokinin); a hormone produced in the body. If this is needed, it would begin if the 1 hour images explained above show normal flow of the radiopharmaceutical. A dose of CCK will be given to your child through the IV previously placed, over a 15-minute period. The CCK will cause the gallbladder to contract. We will take images during the injection of CCK and continue for about 20 minutes after the dose is complete. During that time we are able to measure the rate at which the gallbladder empties, and determine if emptying is normal.

Sedation is an option for the delayed imaging portion of the test for young patients and those unable to hold still.

Child Life Specialists are available to answer questions you might have about how to prepare and support your child during the procedure. A child life specialist can also be present at the time of your child's appointment to explain the procedure in developmentally appropriate ways using well established preparation materials. The specialist can also be available to help implement distraction techniques to help your child better cope with the stress of the hospital experience. Please call 215-590-2001 or click the link above for more information. If your child's procedure is scheduled for the Pediatric Imaging Center at King of Prussia, you can call the Child Life Specialist directly at 215-590-3069.

What should you do after the exam?

There are no special instructions for your child to follow upon completion of this procedure.

Test results

The images from your child's exam are interpreted on the same day and a report is sent to your physician's office.

If your physician has any questions regarding the report, he/she may call 215-590-2584.

Here is an example of what your child's exam may look like.

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