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Patterns of Cerebral Glucose Metabolism in Early and Late Stages of Rasmussen’s Syndrome

Authors
 Joon Soo Lee ; Csaba Juhász ; Harry T. Chugani ; Ahmad K. Kaddurah 
Citation
 Journal of Child Neurology, Vol.16(11) : 798~805, 2001 
Journal Title
 Journal of Child Neurology 
ISSN
 0883-0738 
Issue Date
2001
Abstract
Rasmussen's syndrome is a chronic encephalitis characterized by intractable focal epilepsy and progressive neurologic deterioration with lateralized brain destruction. In the early stages of the disease, the diagnosis can be difficult to make, and brain biopsy is often performed. We evaluated the patterns of cerebral glucose metabolism using 2-deoxy-2-[18F]-fluoro-D-glucose positron emission tomography (PET) in 15 children (age range 2.9-15.4 years, mean age 8.7 +/- 4.3 years) with Rasmussen's syndrome. In 6 patients evaluated early (< or = 1 year of onset of seizures), the PET scan showed areas of abnormal metabolism restricted mostly to the frontal and temporal regions, whereas the posterior cortex was preserved. Pathologic changes seen in the resected cortex were more pronounced in cortical areas of abnormal metabolism than in regions showing normal metabolism. In 9 patients evaluated later (>1 year after onset of seizures), the PET scan showed more diffuse hemispheric metabolic abnormalities including the occipital cortex, but the abnormalities remained highly lateralized. These patterns of glucose metabolic abnormalities in the early and late stages of the disease may facilitate the diagnosis of Rasmussen's syndrome and assist guidance of biopsy in early cases, when structural neuroimaging is still normal.
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/142712
DOI
10.1177/08830738010160110401
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Dept. of Pediatrics
Yonsei Authors
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Link
 http://jcn.sagepub.com/content/16/11/798.long
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