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Melbourne Radiology Clinic

Mar 30th
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Patient Safety

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If you are having an MRI or CT scan, it is possible that you may require a certain intravenous substance known as contrast, often referred to as a ‘dye’.

Contrast enters the bloodstream and then enters certain types of tissues in the body, therefore highlighting the difference between normal and abnormal tissue (thus the name “contrast”). The contrast used for MRI and CT is different.

You will be provided an extensive information sheet to read prior to your scan that will inform you of the benefits and risk of administering contrast. At this point you will then be required to sign a form which formally documents that you have read the information, you have had the opportunity to ask questions and you formally give permission (“consent”) for contrast to be administered. The contrast is NOT radioactive and is removed via the body through the kidneys (urine) and liver (into the bowel).

For more information read:
Melbourne Radiology Clinic - Patient Fact Sheet: CT Intravenous Contrast & Consent

For more information read:
Melbourne Radiology Clinic - Patient Fact Sheet: MRI Consent Form & Safety Questionnaire


Melbourne Radiology Clinic understands that patients may be concerned about possible radiation exposure, however this must be put into perspective and should be considered along with the possible benefits of the scan, such as an early diagnosis.  Firstly, only a CT, and X-ray examination at Melbourne Radiology Clinic use radiation; an MRI or ultrasound scan does NOT.

Large doses of radiation are known to cause cancer, however it is little known that we are exposed to radiation everyday from the atmosphere and outer space (cosmic rays).  For example, a single Chest X-ray is equivalent to the increased exposure to cosmic rays we receive when flying to London, or alternatively, equates to approximately 9 days of cosmic ray exposure on the ground.  For those who are smokers, the risk of dying from smoking related cancer (20 cigarettes per day for one year) is two thousand times greater than the risk of dying from a chest X-ray related cancer.  The equipment used at Melbourne Radiology Clinic is registered with the Environmental Protection Authority and complies with the Radiation Control Act (1990).  Our equipment is modern and undergoes regular servicing.  All of our practices and protocols are continually reviewed under our Quality Assurance program and are designed to minimise the dose of radiation delivered to you without compromising image quality.

All our staff are appropriately qualified and possess the necessary training to operate equipment that emits radiation.  If you are at all concerned, please discuss this with your doctor, our staff or radiologist.  It may be that a different test, that does not use radiation is available as an alternative, though please be aware that the alternative type of scan could be more expensive or not as accurate as the originally requested test.

For more information read:
Melbourne Radiology Clinic - Patient Fact Sheet: Radiation Safety

Infection control

Melbourne Radiology Clinic strictly adheres to the universal precautions according to the Victorian Health Department and as such, all equipment is sterilised, single use only and disposed of appropriately.

Last Updated ( Thursday, 12 January 2012 20:03 )  
MEDICAL DISCLAIMER The Melbourne Radiology Clinic web site is not intended as a substitute for your own independent health professional's advice, diagnosis or treatment. Always seek the advice of your physician or other qualified health provider within your country or place of residency with any questions you may have regarding a medical condition. Any surgical or invasive procedure carries risks. Before proceeding, you should seek a second medical opinion.