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The intravenous cholangiogram or IVC is a radiologic (x-ray) procedure that is used primarily to look at the larger bile ducts within the liver and the bile ducts outside the liver. The procedure can be used to locate gallstones within these bile ducts. IVC also can be used to identify other causes of obstruction to the flow of bile, for ...
Retrograde pyelography is generally done when an intravenous excretory study (intravenous pyelogram or contrast CT scan) cannot be done because of renal disease or allergy to intravenous contrast. Relative contraindications include the presence of infected urine, pregnancy (because of radiation), or allergy to the contrast. [13]
Contrast CT of a patient with brain metastases from breast cancer, before (left) and after (right) injection of iodinated contrast.. Iodinated contrast is a form of water-soluble, intravenous radiocontrast agent containing iodine, which enhances the visibility of vascular structures and organs during radiographic procedures.
In those with contrast allergy, or allergy to food or medications, the procedure can still be carried out with prednisolone coverage. Other relative contraindications include coagulopathy (abnormal coagulation) or platelet count less than 50x10 9 /L. However, if the port is needed urgently, platelet transfusion may be given while the procedure ...
A patch test relies on the principle of a type IV hypersensitivity reaction.. The first step in becoming allergic is sensitization. When skin is exposed to an allergen, the antigen-presenting cells (APCs) – also known as Langerhans cell or Dermal Dendritic Cell – phagocytize the substance, break it down to smaller components and present them on their surface bound major histocompatibility ...
A small bolus of radio-opaque contrast media is injected into a patient via a peripheral intravenous cannula. Depending on the vessel being imaged, the volume of contrast is tracked using a region of interest (abbreviated "R.O.I.") at a certain level and then followed by the CT scanner once it reaches this level. Images are acquired at a rate ...
The NFL's concussion protocol is designed to ensure a player's safety after suffering a head injury. It's a five-step process that a player has to clear before they can return to play.
Other side effects include itchiness, kidney problems, low blood pressure, and allergic reactions. [1] It is not recommended in people who have an iodine allergy. [1] Diatrizoate is an iodinated ionic radiocontrast agent with high osmolality. [2] Diatrizoate was approved for medical use in the United States in 1954. [4]