SwePub - sökning: WFRF:(Rinne J.O.)

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1.	Leinonen, V, et al. (författare) Positron emission tomography with [18F]flutemetamol and [11C]PiB for in vivo detection of cerebral cortical amyloid in normal pressure hydrocephalus patients. 2013 Ingår i: European Journal of Neurology. - : Wiley. - 1351-5101 .- 1468-1331. ; 20:7, s. 1043-52 Tidskriftsartikel (refereegranskat)abstract BACKGROUND AND PURPOSE: This study determined the correlation between uptake of the amyloid positron emission tomography (PET) imaging agent [(18) F]flutemetamol and amyloid-β measured by immunohistochemical and histochemical staining in a frontal cortical biopsy.METHODS: Fifteen patients with possible normal pressure hydrocephalus (NPH) and previous brain biopsy obtained during intracranial pressure monitoring underwent [18F]flutemetamol PET. Seven of these patients also underwent [11C] Pittsburgh compound B (PiB) PET. [18F]Flutemetamol and [11C]PiB uptake was quantified using standardized uptake value ratio (SUVR) with the cerebellar cortex as a reference region. Tissue amyloid-β was evaluated using the monoclonal antibody 4G8, Thioflavin-S and Bielschowsky silver stain.RESULTS: [18F]Flutemetamol and [11C]PiB SUVRs correlated with biopsy specimen amyloid-β levels contralateral (r = 0.86, P < 0.0001; r = 0.96, P = 0.0008) and ipsilateral (r = 0.82, P = 0.0002; r = 0.87, P = 0.01) to the biopsy site. Association between cortical composite [(18) F]flutemetamol SUVRs and [11C]PiB SUVRs was highly significant (r = 0.97, P = 0.0003).CONCLUSIONS: [18F]Flutemetamol detects brain amyloid-β in vivo with moderate to high sensitivity and high specificity. This agent, therefore, represents a valuable new tool to study and verify the presence of amyloid-β pathology, both in patients with possible NPH and among the wider population.

Leinonen, V, et al. (författare)
Positron emission tomography with [18F]flutemetamol and [11C]PiB for in vivo detection of cerebral cortical amyloid in normal pressure hydrocephalus patients.
2013
Ingår i: European Journal of Neurology. - : Wiley. - 1351-5101 .- 1468-1331. ; 20:7, s. 1043-52
Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND AND PURPOSE: This study determined the correlation between uptake of the amyloid positron emission tomography (PET) imaging agent [(18) F]flutemetamol and amyloid-β measured by immunohistochemical and histochemical staining in a frontal cortical biopsy.METHODS: Fifteen patients with possible normal pressure hydrocephalus (NPH) and previous brain biopsy obtained during intracranial pressure monitoring underwent [18F]flutemetamol PET. Seven of these patients also underwent [11C] Pittsburgh compound B (PiB) PET. [18F]Flutemetamol and [11C]PiB uptake was quantified using standardized uptake value ratio (SUVR) with the cerebellar cortex as a reference region. Tissue amyloid-β was evaluated using the monoclonal antibody 4G8, Thioflavin-S and Bielschowsky silver stain.RESULTS: [18F]Flutemetamol and [11C]PiB SUVRs correlated with biopsy specimen amyloid-β levels contralateral (r = 0.86, P < 0.0001; r = 0.96, P = 0.0008) and ipsilateral (r = 0.82, P = 0.0002; r = 0.87, P = 0.01) to the biopsy site. Association between cortical composite [(18) F]flutemetamol SUVRs and [11C]PiB SUVRs was highly significant (r = 0.97, P = 0.0003).CONCLUSIONS: [18F]Flutemetamol detects brain amyloid-β in vivo with moderate to high sensitivity and high specificity. This agent, therefore, represents a valuable new tool to study and verify the presence of amyloid-β pathology, both in patients with possible NPH and among the wider population.

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