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Ann Neurol. 2008 Nov;64(5):587-91. doi: 10.1002/ana.21528.

Detection of isolated cerebrovascular beta-amyloid with Pittsburgh compound B.

Author information

  • 1Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA. sgreenberg@partners.org

Abstract

Imaging of cerebrovascular beta-amyloid (cerebral amyloid angiopathy) is complicated by the nearly universal overlap of this pathology with Alzheimer's pathology. We performed positron emission tomographic imaging with Pittsburgh Compound B on 42-year-old man with early manifestations of Iowa-type hereditary cerebral amyloid angiopathy, a form of the disorder with little or no plaque deposits of fibrillar beta-amyloid. The results demonstrated increased Pittsburgh Compound B retention selectively in occipital cortex, sparing regions typically labeled in Alzheimer's disease. These results offer compelling evidence that Pittsburgh Compound B positron emission tomography can noninvasively detect isolated cerebral amyloid angiopathy before overt signs of tissue damage such as hemorrhage or white matter lesions.

PMID:
19067370
[PubMed - indexed for MEDLINE]
PMCID:
PMC2605158
Free PMC Article

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