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62-year-old woman who presented with right-sided acute stroke.
A, Initial axial 1.5-T DWI obtained at 5-mm slice thickness shows acute left middle cerebral artery infarct.
B, Axial 7-T readout segmentation of long variable echo trains (RESOLVE) DWI at 2-mm slice thickness obtained 11 days after A shows expected resolution of infarct, which is now subacute. Image at 7 T exhibits markedly improved spatial resolution and contrast resolution compared with 1.5-T image.
