His team pointed to several ways imaging centers could prevent inadvertent
gadolinium exposure in pregnant women.
"While there is clear evidence that all types of [gadolinium contrast agents], both linear and macrocyclic, may result in trace amounts of
gadolinium in the brain, there exists no clinical evidence that this leads to an increase in risk or harm to patients," a press release from GE Healthcare defended the company's MRI contrast agent Omniscan; and continued stating that "Omniscan has a specific cardiac indication in several European Member States; removing it would limit clinical choice."
Dr Walsh claims
gadolinium contrast agents should not have been granted licences without more research.
Omniscan possesses a linear molecular structure, which is less stable and has greater
gadolinium dissociation.
Preparation of
Gadolinium Aluminate (GdAl[O.sub.3]) Nanoparticles
We measured the signal intensity of each cell pallets to obtain quantitative data, which is also an indirect method to determine the
gadolinium deposition in the cells.
Most of the patterns (excluding those for the samples with
gadolinium doping of 2.5 and 4.3 mol.%) contain the same sequence of the reflections at 2[theta] = 30.2, 35.5, 43.2, 53.5, 57.2, and 62.7[degrees] indicative for an inverse spinel phase and corresponding to (220), (311), (400), (422), (511), and (440) crystallographic planes, respectively, which is immanent to both magnetite and maghemite [1].
[5] have used all these performance indicators to numerically determine the cooling and overall performance of a micro-channel AMR magnetic refrigerator using
gadolinium and water as MCM and heat transfer fluid respectively.
The consensual use of the 3 criteria "Lake Louise Criteria" (signal intensity increase in T2-weighted images "edema," early
gadolinium enhancement in T1-weighted images "hyperemia," and late
gadolinium enhancement in T1-weighted images "necrosis and fibrosis") has standardized the CMR protocol for myocarditis diagnosis [12].
Fiorentino, "Nephrogenic systemic fibrosis: relationship to
gadolinium and response to photopheresis," Archives of Dermatology, vol.
Therefore,
gadolinium oxysulfide nanophosphors ([Gd.sub.2][O.sub.2]S-NPs) were chosen due to its high chemical and thermal stability as well as wide band gap energy in the range of 4.6 to 4.8 eV, which is suitable for ionic doped activation [4] and efficiently reacted to become as a luminescent emitting material [5].
A contrast-enhancing agent, such as
gadolinium, is injected into a vein in the arm.
