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AJNR - American Journal of Neuroradiology

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American Journal of Neuroradiology 24:1475-1477, August 2003
© 2003 American Society of Neuroradiology

Case Report
PEDIATRIC

Acute Carbon Monoxide Poisoning: Diffusion MR Imaging Findings

R. Nuri Sener^a

^a Department of Radiology, Ege University Hospital, Bornova, Izmir, Turkey

Address reprint requests to Prof. R. Nuri Sener, Ege University Hospital, Department of Radiology, Bornova, Izmir, 35100, Turkey

Summary: During the acute stage of carbon monoxide poisoning, diffusion MR images obtained at b = 1000 s/mm² revealed high signal intensity lesions in the white matter, consistent with restricted diffusion. Low apparent diffusion coefficient values (0.18–0.34 x 10^-3 mm²/s) were noted in the affected white matter regions. Follow-up MR imaging performed 16 days later revealed disappearance of white matter lesions, suggesting that during the acute stage of carbon monoxide poisoning, white matter can be more sensitive than gray matter to ischemia.

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