J Korean Neurol Assoc.
2010 May;28(2):108-111.
Significance of Early Perfusion Weighted MRI for the Diagnosis of TIA
- Affiliations
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- 1Department of Neurology, Chonbuk National University Medical School and Research Institute of Clinical Medicine, Jeonju, Korea. sbsoo@jbnu.ac.kr
Abstract
- We report on three patients with transient focal neurologic deficits that completely resolved. In all cases, initial perfusion-weighted imaging (PWI) performed 1 hour after being free of symptoms showed a defect in the time-to-peak (TTP) map in the area with normal diffusion-weight imaging (DWI) findings. After 24 hours, DWI showed a high signal intensity in exactly the same area as the TTP defect. Therefore, early PWI provides a rapid evaluation of cerebral hemodynamics in transient ischemic attack.
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