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Abstract #5572

T1-signal increases as a marker of Gd-deposition in pediatric brain: findings after multiple exposures to gadobenate dimeglumine

Guenther Schneider1, Paul Raczeck1, Arno Buecker1, and Jonas Stroeder1

1Saarland University Medical Center, Homburg, Germany

The possibility of Gd deposition in the pediatric brain following exposure to GBCAs is a potentially serious issue. Our study of 34 pediatric patients that received between 5 and 15 administrations of low dose (0.05 mmol/kg bodyweight) gadobenate dimeglumine (MultiHance; Bracco) revealed no differences in T1-signal in the DN, GP, pons and thalamus relative to measurements made in 24 age- and weight-matched control subjects that had never been exposed to any GBCA. Likewise no meaningful differences were seen in DN–pons and GP–thalamus SI ratios. We consider low dose gadobenate to be safe and effective for diagnosis and routine follow-up of pediatric oncologic patients.

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