Comparison of Optimized and Standard Diffusion-Weighted Imaging at 1.5T for the Detection of Acute Lesions in Patients with Transient Ischemic Attack

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Fig 1.
A 59-year-old man referred for aphasia and sensorimotor weakness of the right face and upper limb that lasted 90 minutes. Optimized DWI showed 2 punctate cortical lesions in the left middle cerebral artery territory, not visible on standard DWI. These lesions were located in the left primary sensory motor cortex, corroborating clinical symptoms.
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Fig 2.
A 51-year-old man referred for ataxia and left facial paresthesia that lasted 20 minutes. Standard DWI demonstrated a subtle punctuate hyperintensity in the brain stem. Optimized DWI confirmed a recent ischemic brain stem lesion and revealed additional bright dots in the right cerebral peduncle, matching clinical symptoms.