J Korean Soc Magn Reson Med.  2013 Dec;17(4):312-315. 10.13104/jksmrm.2013.17.4.312.

Perfusion MR Imaging of Seizure-related Cerebral Cortical Lesion: A Case Report

• Seo H
• Choi DS
• Shin HS
• Son S

• KMID: 2144333
• DOI: http://doi.org/10.13104/jksmrm.2013.17.4.312

Abstract

When cerebral cortical hyperintensities on diffusion-weighted image are seen in patients with suspected acute stroke accompanying seizure, it is necessary to differentiate whether they are caused by infarction or seizure-related change. We report a case of seizure-related cortical hypertensities in a patient with suspected acute infarction. With perfusion MR imaging, we could differentiate from acute infarction.

Keyword

Seizure; Cortical hyperintensities; Diffusion-weighted image (DWI); Perfusion MR

MeSH Terms

Humans
Infarction
Magnetic Resonance Imaging*
Perfusion*
Seizures
Stroke

Figure

• 

  Fig. 1 A 45-year-old male patient with left hemiparesis and seizure. Diffusion-weighted images (a, b) show hyperintense lesion in the right temporoparietal lobe cortices (arrows). On fluid-attenuated inversion recovery image (c), the lesion shows subtle hyperintensity (arrows). Apparent diffusion coefficient map images (d, e) show restricted water diffusion of the lesion (arrows). There is tissue loss due to old hemorrhage in the parietal lobe on susceptibility-weighted image (f) (arrow). Perfusion MR images show increased cerebral blood flow (g) and shortened mean transit time (h) in the corresponding area (arrows). On follow-up diffusion image 3 days later (i), the lesion has disappeared.

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