You may be injected with contrast material to increase what the doctors are able to see.

Before and after injection of contrast material, the analysis was performed according to the following principles.

Tell your doctor if you have recently taken antibiotics, traveled out of the country, or had a recent test with contrast material.

Some contrast material can cause a serious skin problem in people with kidney failure.

Using contrast material can also help to obtain functional information about tissues.

The technician returned and announced that the contrast material had been given.

A special dye (contrast material) was used for this scan.

These structures are not seen on a plain X-ray without contrast material.

A contrast material may be used if it is difficult to get good views of your heart.