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A through C show the target (yellow), simulated (green) and gadolinium (red) volumes in infusions in the (A) caudate, (B) putamen) and (C) thalamus. The MRI images are the T1-weighted FLASH images showing the distribution of gadolinium. (D) There was strong agreement between the simulated and gadolinium coverage of the target structure. The dotted lines are drawn at ±30% and open dots show the very small infusion volumes <100 μL.
