Iodinated contrast media | Radiology Reference Article - Radiopaedia. org Iodinated contrast media are contrast agents that contain iodine atoms used for x-ray-based imaging modalities such as computed tomography (CT) They can also be used in fluoroscopy, angiography and venography, and even occasionally, plain radiography
Iodinated contrast media adverse reactions - Radiopaedia. org Since their discovery in the early years of radiology, the iodinated contrast media have evolved and become progressively safer This article will review the adverse reactions based on the use of non-ionic low-osmolar contrast agents, which are the state-of-the-art option in radiology
Iodinated contrast-induced thyrotoxicosis - Radiopaedia. org Iodinated contrast-induced thyrotoxicosis is rare and may occur in patients with pre-existing thyroid disease and through complications of thyrotoxicosis (e g cardiac arrhythmia) may be fatal Patients with a normal thyroid gland are unaffected
Contrast media extravasation | Radiology Reference Article . . . Contrast media extravasation refers to the leakage of intravenously administered contrast media from the normal intravascular compartment into surrounding soft tissues It is a known complication of contrast-enhanced CT It can also occur in MRI, but the complications are rare given the low volumes and injection rates that are used
MRI contrast agent safety | Radiology Reference Article - Radiopaedia. org Though considered safer than the frequently used iodinated contrast agents used in x-ray and CT studies, there are safety issues with MRI contrast agents as well Paramagnetic metal ions suitable as MRI contrast agents are all potentially toxic when injected IV at or near doses needed for clinical imaging
Iodine | Radiology Reference Article | Radiopaedia. org Iodine (chemical symbol I) is one of the trace elements Its biological importance is its central place in the physiology of the thyroid gland and, in radiology, as the key chemical constituent of most of the radiographic, fluoroscopic, and CT contrast media
Contrast medium | Radiology Reference Article - Radiopaedia. org Iodinated contrast media are the mainstay contrast agents for use in radiographic, fluoroscopic, angiographic and CT imaging They are a versatile group of agents used for intravenous, oral and other routes of administration, such as urethral and intra-articular
Vicarious contrast media excretion - Radiopaedia. org Vicarious contrast media excretion (VCME) refers to the excretion of intravascularly-administered water-soluble iodinated contrast media in a way other than via normal renal excretion More rarely it may occur following oral contrast medium administration 6
Barium sulfate contrast medium | Radiology Reference Article . . . Barium sulfate forms the basis for a range of contrast media used in fluoroscopic examinations of the gastrointestinal tract Unlike barium and many of its other salts, barium sulfate is insoluble in water and therefore very little of the toxic barium metal is absorbed into the body
Contrast media and breastfeeding - Radiopaedia. org Iodinated contrast media The plasma half-life of IV iodinated contrast agents is two hours, with ~100% excreted in 24 hours Contrast agents have poor lipid solubility and <1% of dose enters breast milk