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Radiocontrast agents are substances used to enhance the visibility of internal structures in X-ray-based imaging techniques such as computed tomography (contrast CT), projectional radiography, and fluoroscopy. Radiocontrast agents are typically iodine, or more rarely barium sulfate.
Positive contrast agents are substances that increase the X-ray attenuation within the body, making the tissues or structures containing these agents appear whiter or brighter on the X-ray image. These agents are generally radiopaque, meaning they absorb X-rays more readily than surrounding tissues.
Oct 11, 2019 · Radiocontrast media are the agents used to increase the contrast of an image, to enhance the visibility of internal structures in imaging technology. Radiocontrast media can be given orally or intravenously. The agents commonly used are barium-based (orally) and iodinated agents (intravenously).
- Rajiv Mahajan, Pushpinder Singh
- 2019
Oct 14, 2015 · The use of enteric contrast agents and contrast agents during pregnancy and nursing are reviewed briefly. Current knowledge for safe use of contrast media and key concepts that all radiologists should know are summarized in this review.
- Katrina R Beckett, Andrew K Moriarity, Jessica M Langer
- 2015
Dec 29, 2017 · The specific radiocontrast agent that is associated with a patient’s adverse reaction must be displayed in the drug intolerance or drug “allergy” field of their electronic health record to enable effective management and prevention of future reactions.
- Eric M Macy
- 10.7812/TPP/17-072
- 2018
- Perm J. 2018; 22: 17-072.
May 3, 2024 · Contrast media are a group of chemical agents developed to aid in the characterization of pathology by improving the contrast resolution of an imaging modality. Specific contrast media have been developed for every structural imaging modality, and every conceivable route of administration.
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Nov 3, 2020 · Contrast agents are substances used in medical imaging as to enhance the contrast or the distinction between different tissues. aka contrast medium; RADIOGRAPHIC CONTRAST AGENTS. Composition. Currently available agents contain a tri-iodinated benzene ring (either monomeric or dimeric; ionic or non-ionic)
