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Comparison of small acute infarction on conventional DWI and DL-DWI. A 71-year-old male visited the emergency room complaining transient right-sided weakness. Conventional DWI revealed a small (≤ 5 mm) indistinct DWI high-signal-intensity lesion in the left frontal lobe (a) with a severely blurred ADC map (b) due to motion artifact. However, DL-DWI demonstrated a discrete lesion (c) with clear ADC map (d).
