RT Journal Article
SR Electronic
T1 Gadolinium-Based Contrast Agent Accumulation and Toxicity: An Update
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 1192
OP 1198
DO 10.3174/ajnr.A4615
VO 37
IS 7
A1 J. Ramalho
A1 R.C. Semelka
A1 M. Ramalho
A1 R.H. Nunes
A1 M. AlObaidy
A1 M. Castillo
YR 2016
UL http://www.ajnr.org/content/37/7/1192.abstract
AB SUMMARY: In current practice, gadolinium-based contrast agents have been considered safe when used at clinically recommended doses in patients without severe renal insufficiency. The causal relationship between gadolinium-based contrast agents and nephrogenic systemic fibrosis in patients with renal insufficiency resulted in new policies regarding the administration of these agents. After an effective screening of patients with renal disease by performing either unenhanced or reduced-dose-enhanced studies in these patients and by using the most stable contrast agents, nephrogenic systemic fibrosis has been largely eliminated since 2009. Evidence of in vivo gadolinium deposition in bone tissue in patients with normal renal function is well-established, but recent literature showing that gadolinium might also deposit in the brain in patients with intact blood-brain barriers caught many individuals in the imaging community by surprise. The purpose of this review was to summarize the literature on gadolinium-based contrast agents, tying together information on agent stability and animal and human studies, and to emphasize that low-stability agents are the ones most often associated with brain deposition.DNdentate nucleiGBCAgadolinium-based contrast agentNSFnephrogenic systemic fibrosis