Items tagged “contrast”
4 results found
Vicarious contrast material excretion
Vicarious contrast material excretion (VCME) defines excretion of water-soluble contrast material in a way other than via normal renal excretion. The most common vicarious excretion of water-soluble contrast material is via the liver, resulting in increased bile density seen in the gallbladder...
Contrast media extravasation
Contrast media extravasation (CMEV) refers to the leakage of contrast media from the normal intravascular compartment into surrounding soft tissues; it is a well-known complication of contrast-enhanced CT scanning. It can also occur in MRI studies, but the complications are rare given the low vo...
Gadolinium contrast agents
Molecular complexes containing the rare earth metal gadolinium, chelated to a carrier ligand, form the gadolinium contrast agents (a type of paramagnetic contrast agent) which are the primary class of MRI contrast media. The intravenous route of administration is the commonest. Chemistry The g...
Iodinated contrast-induced thyrotoxicosis
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. Patients with existing thyrotoxicosis should no...