BACKGROUND AND PURPOSE:Gadobenate dimeglumine (MultiHance) has higher r1 relaxivity than gadoterate meglumine (Dotarem) which may permit the use of lower doses for MR imaging applications. Our aim was to compare 0.1-and 0.05-mmol/kg body weight gadobenate with 0.1-mmol/kg body weight gadoterate for MR imaging assessment of brain tumors.

Headache is one of the most commonly encountered neurologically related complaints in HIV patients. The authors review the relationship between HIV infection and headache and discuss the role of neuroimaging in this select patient group.

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