Journal of Korean Neurosurgical Society

The Korean Neurosurgical Society (대한신경외과학회)
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Serial Magnetic Resonance Images of a Right Middle Cerebral Artery Infarction : Persistent Hyperintensity on Diffusion-Weighted MRI Over 8 Months

  • Son, Seung-Nam (Department of Neurology, Gyeongsang National University School of Medicine) ;
  • Choi, Dae-Seob (Department of Radiology, Gyeongsang National University School of Medicine) ;
  • Choi, Nack-Cheon (Department of Neurology, Gyeongsang National University School of Medicine) ;
  • Lim, Byeong-Hoon (Department of Neurology, Gyeongsang National University School of Medicine)
  • Received : 2011.03.21
  • Accepted : 2011.10.06
  • Published : 2011.10.28
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Abstract

A lesion that is hyperintense on diffusion-weighted imaging (DWI) and hypointense on the apparent diffusion coefficient (ADC) map is a characteristic magnetic resonance imaging (MRI) finding in acute ischemic infarction. In some cases, however, these findings can persist for a few months after infarct onset. It is thought that these finding reflect the different evolution speeds of the infarcted tissue. We report a patient with a right middle cerebral artery territory infarction with persistent hyperintensity on DWI and hypointensity on the ADC map for over 8 months. To our knowledge, this is the most persistent case of hyperintensity lesion on DWI and the serial MRI images of this patient provide important information on the evolution of infarcted tissue.

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References

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