What is a transvaginal ultrasound? Transvaginal ultrasound is an examination of the female pelvis. It helps to see if there…. What are the generally accepted indications for magnetic resonance imaging MRI?
Magnetic resonance imaging is increasingly being used for diagnosis…. Advice to help you and your family Understand the purpose of the test and what it involves It is normal….
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Each person should rely on their own inquires before making decisions that touch their own interests. Find information about a clinical radiology procedure or test: Refine search Reset. Health consumers information. Iodine-containing contrast medium. Image Guided Facet Joint Corticosteroid Injection What are the generally accepted indications for an image guided facet joint corticosteroid injection? Image guided facet joint corticosteroid injections… Read more.
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About Recent Edits Go ad-free. Edit article. View revision history Report problem with Article. Citation, DOI and article data. Murphy, A. Iodinated contrast media. Reference article, Radiopaedia. If you have ICCM into a tube in your rectum, it might feel temporarily uncomfortable, as if you need to go to the toilet. Most patients will not usually notice anything abnormal after being given ICCM. Some patients might have some allergies or side effects, which are discussed below.
The ICCM will leave your body through your urine in the hours after your test or procedure. You can help this by drinking plenty of fluids. If you are not allowed to drink due to your medical condition, the fluids will be given to you in an intravenous drip. This depends on the type of test or procedure you are having and how you are to be given the ICCM. It is best to ask the staff this question when you are being prepared for your procedure. All medical tests, procedures and medications are associated with risks.
There are some risks that you need to know about before you have ICCM. If you know about these risks, and are in anyway concerned, then contact your doctor or the hospital or X-ray centre where you are having the test.
You can do this when you make your appointment, and again when you arrive to have your test or procedure. If there is a chance that you will be given ICCM, then you will be asked several questions at the time of your appointment or when you arrive for your test. These will include:. If you do not know the answers to these questions or are unsure, then your referring doctor should be able to help you. As with all medical procedures, the risks need to be weighed against the benefits in every case.
Your doctor will work with the radiologist to assess whether the risk of a procedure involving ICCM is outweighed by the benefits of the test. This is an individual medical judgment that is different for every patient and every situation or problem. Where the ICCM might provide additional information to the radiologist who is going to interpret your imaging the pictures taken when you have your X-ray procedure , this can often lead to a more accurate diagnosis that, in turn, will allow your doctor to better understand what is wrong and to give you the right treatment.
Reactions are unpredictable, and anyone can have a reaction. For this reason, all radiology practices and hospital radiology departments are prepared at all times to treat moderate and severe allergic reactions with appropriate medication. These reactions respond, in almost all cases, very well to emergency drug treatment. If you have had a mild, moderate or severe allergic reaction to ICCM in the past, you MUST tell the radiology facility when you are making your appointment.
If it is impossible to avoid giving ICCM, you might require medication tablets taken by mouth every few hours for several hours before the procedure to decrease the chance of you having a moderate or severe reaction. These tablets are corticosteroids or cortisone , which might reduce, but will not eliminate, the chance of another reaction to ICCM.
The tablets take a few hours to have any effect and do not work if you take them right before you have ICCM. Almost always these types of reactions do not require any special treatment and generally take only minutes to go away. Moderate reactions Moderate reactions consist of severe or prolonged vomiting, a generalised rash, or swelling of the face, mouth or throat, making it harder to breathe and swallow. These reactions often need drug treatment, typically with adrenaline, antihistamines and sometimes corticosteroids or cortisone , as well as a period of observation 2—3 hours before you are allowed to go home.
They occur in less than 1 in every people who has ICCM. Severe reactions Severe reactions are rare, and occur in less than 1 in every 25, people who have ICCM. They require emergency medical treatment and admission to hospital for a period of observation. If you have not been sedated, no recovery period is necessary. You may resume your usual activities and normal diet immediately after the exam.
Increased fluid intake will help eliminate the contrast material from your body. Prior to any imaging exam, women should always inform their physician or x-ray technologist if there is any possibility that they are pregnant. Many imaging tests and contrast material administrations are avoided during pregnancy to minimize risk to the baby. For CT imaging, if a pregnant woman must undergo imaging with an iodine-based contrast material, the patient should have a discussion with her referring physician and radiologist to understand the potential risks and benefits of the contrast-enhanced scan.
For MR imaging, gadolinium contrast material administration is usually avoided due to unknown risk to the baby. However, it may be used when critical information can only be obtained with the use of the gadolinium-based contrast agent.
Manufacturers of intravenous contrast provide special instructions for mothers who are breast feeding. They advise that mothers should not breast-feed their babies for 24 to 48 hours after contrast medium is given. However, both the American College of Radiology ACR and the European Society of Urogenital Radiology note that the available data suggest it is safe to continue breast-feeding after receiving intravenous contrast. We believe, therefore, that the available data suggest that it is safe for the mother and infant to continue breast-feeding after receiving such an agent.
If the mother remains concerned about any potential ill effects, she should be given the opportunity to make an informed decision as to whether to continue or temporarily abstain from breast-feeding after receiving a gadolinium contrast medium. If the mother so desires, she may abstain from breast-feeding for 24 hours with active expression and discarding of breast milk from both breasts during that period.
In anticipation of this, she may wish to use a breast pump to obtain milk before the contrast study to feed the infant during the hour period following the examination. Please type your comment or suggestion into the text box below. Note: we are unable to answer specific questions or offer individual medical advice or opinions. A photograph of contrast material, which is also referred to as contrast agent or contrast medium.
Please contact your physician with specific medical questions or for a referral to a radiologist or other physician. To locate a medical imaging or radiation oncology provider in your community, you can search the ACR-accredited facilities database. This website does not provide cost information. The costs for specific medical imaging tests, treatments and procedures may vary by geographic region.
Web page review process: This Web page is reviewed regularly by a physician with expertise in the medical area presented and is further reviewed by committees from the Radiological Society of North America RSNA and the American College of Radiology ACR , comprising physicians with expertise in several radiologic areas. Outside links: For the convenience of our users, RadiologyInfo. Toggle navigation. What are contrast materials and how do they work? Which imaging exams use contrast materials?
How safe are contrast materials? How should I prepare for my imaging procedure with contrast material? Side effects and adverse and allergic reactions What will I experience before and after receiving contrast material? Pregnancy and contrast materials. Contrast materials enter the body in one of three ways. They can be: swallowed taken by mouth or orally administered by enema given rectally injected into a blood vessel vein or artery; also referred to as being given intravenously or intra-arterially Following an imaging exam with contrast material, the material is absorbed by the body or eliminated through urine or bowel movements.
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