Frequently Asked Questions

Below are some frequently asked questions. If you require more information, do not hesitate to contact us with your query.


Who are Radiographers?

Are X-rays Safe?



What is Contrast Agent (Dye)?

Bones due to high calcium content are visualized well on x-rays, but soft tissues of the body can be difficult to see. Contrast agents are therefore used to enhance specific organs or blood vessels, making them more visible on a diagnostic image. Some contrast agents are designed for the patient to drink, while others are injected, delivered through an intravenous hook-up, or administered rectally through an enema tube. The most common types of contrast used in general radiography are air, iodine and barium. Air encourages the passage of x-rays through a selected part of the body, while barium and iodine block the passage of x-rays. In MRI, a special contrast is used to delineate and characterize lesions.

Because the use of contrast agents carries a small risk of allergic reaction, you should let your physician or the radiographer know if you have allergies of any type.