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KMID : 0359720100280020108
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Journal of the Korean Neurological Association
2010 Volume.28 No. 2 p.108 ~ p.111
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Significance of Early Perfusion Weighted MRI for the Diagnosis of TIA
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Kim Ki-Joo
Kim Eui-Joong
Seo Jin-Young
Oh Sun-Young
Shin Byoung-Soo
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Abstract
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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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KEYWORD
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Ischemic attack, transient, MRI, perfusion-weighted imaging
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