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Cited by 527

The DOI matches its Crossref record; 39 of the 39 references it cites were found in a registry or an index.

Conversion of amyloid positive and negative MCI to AD over 3 years: An 11 C-PIB PET study

Open access
Okello, A., Koivunen, J., Edison, P., Archer, H. A., Turkheimer, F. E., Någren, K., Bullock, R., Walker, Z., Kennedy, A., Fox, N. C., Rossor, M. N., Rinne, J. O., Brooks, D. J.·2009·Neurology

Abstract

BACKGROUND: Patients with amnestic mild cognitive impairment (MCI) represent an important clinical group as they are at increased risk of developing Alzheimer disease (AD). (11)C-PIB PET is an in vivo marker of brain amyloid load. OBJECTIVE: To assess the rates of conversion of MCI to AD during a 3-year follow-up period and to compare levels of amyloid deposition between MCI converters and nonconverters. METHODS: Thirty-one subjects with MCI with baseline (11)C-PIB PET, MRI, and neuropsychometry have been clinically followed up for 1 to 3 years (2.68 +/- 0.6 years). Raised cortical (11)C-PIB binding in subjects with MCI was detected with region of interest analysis and statistical parametric mapping. RESULTS: Seventeen of 31 (55%) subjects with MCI had increased (11)C-PIB retention at baseline and 14 of these 17 (82%) clinically converted to AD during follow-up. Only one of the 14 PIB-negative MCI cases converted to AD. Of the PIB-positive subjects with MCI, half (47%) converted to AD within 1 year of baseline PIB PET, these faster converters having higher tracer-retention values than slower converters in the anterior cingulate (p = 0.027) and frontal cortex (p = 0.031). Seven of 17 (41%) subjects with MCI with known APOE status were epsilon4 allele carriers, this genotype being associated with faster conversion rates in PIB-positive subjects with MCI (p = 0.035). CONCLUSIONS: PIB-positive subjects with mild cognitive impairment (MCI) are significantly more likely to convert to AD than PIB-negative patients, faster converters having higher PIB retention levels at baseline than slower converters. In vivo detection of amyloid deposition in MCI with PIB PET provides useful prognostic information.

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Metadata

Authors
Okello, A., Koivunen, J., Edison, P., Archer, H. A., Turkheimer, F. E., Någren, K., Bullock, R., Walker, Z., Kennedy, A., Fox, N. C., Rossor, M. N., Rinne, J. O., & Brooks, D. J.
Venue
Neurology
Published
2009-09-08
Volume
73
Issue
10
Pages
754-760
ISSN
  • 0028-3878 (ISSN-L)
  • 1526-632X
OpenAlex
W2087924155
Cited by
527
References
39
FWCI
28.43
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Conversion of amyloid positive and negative MCI to AD over 3 years: An 11 C-PIB PET study. https://app.cochat.ai/papers/10.1212/wnl.0b013e3181b23564
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Okello, A., Koivunen, J., Edison, P., Archer, H. A., Turkheimer, F. E., Någren, K., Bullock, R., Walker, Z., Kennedy, A., Fox, N. C., Rossor, M. N., Rinne, J. O., & Brooks, D. J. (2009). Conversion of amyloid positive and negative MCI to AD over 3 years: An 11 C-PIB PET study. Neurology. https://doi.org/10.1212/wnl.0b013e3181b23564

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