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  2. MRI contrast agent - Wikipedia

    en.wikipedia.org/wiki/MRI_contrast_agent

    The spectrum of adverse drug reactions is greater with gadolinium-based contrast agents than with iodinated contrast agents (radiocontrast agents). [ 20 ] The use of Gd 3+ chelates in persons with acute or chronic kidney disease can cause nephrogenic systemic fibrosis (NSF), [ 21 ] [ 22 ] [ 23 ] a rare but severe systemic disease resembling ...

  3. Gadolinium - Wikipedia

    en.wikipedia.org/wiki/Gadolinium

    Gadolinium is a chemical element; it has symbol Gd and atomic number 64. Gadolinium is a silvery-white metal when oxidation is removed. It is a malleable and ductile rare-earth element. Gadolinium reacts with atmospheric oxygen or moisture slowly to form a black coating. Gadolinium below its Curie point of 20 °C (68 °F) is ferromagnetic, with ...

  4. Gadodiamide - Wikipedia

    en.wikipedia.org/wiki/Gadodiamide

    Gadodiamide is a contrast medium used for cranial and spinal magnetic resonance imaging (MRI) and for general MRI of the body after intravenous administration. It provides contrast enhancement and facilitates visualisation of abnormal structures or lesions in various parts of the body including the central nervous system (CNS).

  5. Contrast agent - Wikipedia

    en.wikipedia.org/wiki/Contrast_agent

    A contrast agent (or contrast medium) is a substance used to increase the contrast of structures or fluids within the body in medical imaging. [1] Contrast agents absorb or alter external electromagnetism or ultrasound, which is different from radiopharmaceuticals, which emit radiation themselves. In X-ray imaging, contrast agents enhance the ...

  6. Nephrogenic systemic fibrosis - Wikipedia

    en.wikipedia.org/wiki/Nephrogenic_systemic_fibrosis

    Nephrogenic systemic fibrosis is a rare syndrome that involves fibrosis of the skin, joints, eyes, and internal organs. NSF is caused by exposure to gadolinium in gadolinium-based MRI contrast agents (GBCAs) in patients with impaired kidney function. [1][2] Epidemiological studies suggest that the incidence of NSF is unrelated to gender or ...

  7. Gadoteric acid - Wikipedia

    en.wikipedia.org/wiki/Gadoteric_acid

    Gadoteric acid, sold under the brand name Dotarem among others, is a macrocycle -structured gadolinium-based MRI contrast agent (GBCA). It consists of the organic acid DOTA as a chelating agent, and gadolinium (Gd 3+), and is used in form of the meglumine salt (gadoterate meglumine). [4][5] The paramagnetic property of gadoteric acid reduces ...

  8. Gadolinium(III) oxide - Wikipedia

    en.wikipedia.org/wiki/Gadolinium(III)_oxide

    Nanoparticles of gadolinium oxide is a potential contrast agent for magnetic resonance imaging (MRI). A dextran-coated preparation of 20–40 nm sized gadolinium oxide particles had a relaxivity of 4.8 s −1 mM −1 per gadolinium ion at 7.05 T (an unusually high field compared to the clinically used MRI scanners which mostly range from 0.5 to ...

  9. Gadopentetic acid - Wikipedia

    en.wikipedia.org/wiki/Gadopentetic_acid

    Gadopentetic acid, sold under the brand name Magnevist, is a gadolinium-based MRI contrast agent. [2]It is usually administered as a salt of a complex of gadolinium with DTPA (diethylenetriaminepentacetate) with the chemical formula A 2 [Gd(DTPA)(H 2 O)]; when cation A is the protonated form of the amino sugar meglumine the salt goes under the name "gadopentetate dimeglumine".