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Summary of targeting and BBB opening using constant acoustic pressure (no feedback control). Representative coronal MR images showing targeting on T2-weighted MR images (top) acquired prior to sonications and T1-weighted contrast enhanced MR images (bottom) acquired 30 min after sonication illustrating the presence (sessions 1, 3, 4) or absence (session 2) of BBB opening using low (green) and high (red) acoustic pressures.
