It shows up on the special x-ray camera that is used in the catheterization lab. The doctor then guides the catheter through the big blood vessels to the heart and uses the catheter to collect the blood and measure the pressure. A special x-ray blocking dye is used to take the picture of the heart. The pictures will be recorded and saved. From these, the cardiologist can determine if the interventional procedure or other things need to be done.
Interventional catheterization uses special catheters to treat some heart problems.
A narrowed valve cane be opened up, for an example. Be sure you know what procedure is planned for your child. You will be informed as to the reason for the procedure and be told of the risks to your child. Ask again if you are not sure why the test is being done, and let the cardiologist know of any concerns or questions that you have. The risks of the catheterization depend on the type of heart problem your child has and the age of the child.