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Isotopes of gadolinium (64Gd) Naturally occurring gadolinium (64 Gd) is composed of 6 stable isotopes, 154 Gd, 155 Gd, 156 Gd, 157 Gd, 158 Gd and 160 Gd, and 1 radioisotope, 152 Gd, with 158 Gd being the most abundant (24.84% natural abundance). The predicted double beta decay of 160 Gd has never been observed; only a lower limit on its half ...
Gadolinium isotopes have four metastable isomers, with the most stable being 143m Gd (t 1/2 = 110 seconds), 145m Gd (t 1/2 = 85 seconds) and 141m Gd (t 1/2 = 24.5 seconds). The isotopes with atomic masses lower than the most abundant stable isotope, 158 Gd, primarily decay by electron capture to isotopes of europium .
Gadolinium (III) containing MRI contrast agents (often termed simply "gado" or "gad") are the most commonly used for enhancement of vessels in MR angiography or for brain tumor enhancement associated with the degradation of the blood–brain barrier (BBB). [3][4] Over 450 million doses have been administered worldwide from 1988 to 2017. [5]
For the first time, researchers have mapped out the very real physical changes of “pregnancy brain,” the changes that a mother’s brain undergoes while carrying a baby.. There’s “so much ...
Researchers said on Monday they have for the first time mapped the changes that unfold as a woman's brain reorganizes in response to pregnancy, based on scans carried out 26 times starting three ...
Pages in category "Isotopes of gadolinium" The following 37 pages are in this category, out of 37 total. This list may not reflect recent changes. ...
A gallium scan is a type of nuclear medicine test that uses either a gallium-67 (67 Ga) or gallium-68 (68 Ga) radiopharmaceutical to obtain images of a specific type of tissue, or disease state of tissue. Gallium salts like gallium citrate and gallium nitrate may be used. The form of salt is not important, since it is the freely dissolved ...
The stable argon isotope 40 Ar is actually more common as a radiogenic nuclide than as a primordial nuclide, forming almost 1% of the Earth's atmosphere, which is regenerated by the beta decay of the extremely long-lived radioactive primordial isotope 40 K, whose half-life is on the order of a billion years and thus has been generating argon ...