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Performance of a [1...
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Coomans, Emma M.Vrije Universiteit Amsterdam,Amsterdam Neuroscience
(författare)
Performance of a [18F]Flortaucipir PET Visual Read Method Across the Alzheimer Disease Continuum and in Dementia with Lewy Bodies
- Artikel/kapitelEngelska2023
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Nummerbeteckningar
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LIBRIS-ID:oai:lup.lub.lu.se:b6fd5f32-39dc-491d-bff5-19bb09e61f39
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https://lup.lub.lu.se/record/b6fd5f32-39dc-491d-bff5-19bb09e61f39URI
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https://doi.org/10.1212/WNL.0000000000207794DOI
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http://kipublications.ki.se/Default.aspx?queryparsed=id:154196204URI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:art swepub-publicationtype
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Ämneskategori:ref swepub-contenttype
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Background and ObjectivesRecently, the US Food and Drug Administration approved the tau-binding radiotracer [18F]flortaucipir and an accompanying visual read method to support the diagnostic process in cognitively impaired patients assessed for Alzheimer disease (AD). Studies evaluating this visual read method are limited. In this study, we evaluated the performance of the visual read method in participants along the AD continuum and dementia with Lewy bodies (DLB) by determining its reliability, accordance with semiquantitative analyses, and associations with clinically relevant variables.MethodsWe included participants who underwent tau-PET at Amsterdam University Medical Center. A subset underwent follow-up tau-PET. Two trained nuclear medicine physicians visually assessed all scans. Inter-reader agreement was calculated using Cohen . To examine the concordance of visual read tau positivity with semiquantification, we defined standardized uptake value ratio (SUVr) positivity using different threshold approaches. To evaluate the prognostic value of tau-PET visual read, we performed linear mixed models with longitudinal Mini-Mental State Examination (MMSE).ResultsWe included 263 participants (mean age 68.5 years, 45.6% female), including 147 cognitively unimpaired (CU) participants, 97 amyloid-positive participants with mild cognitive impairment or AD dementia (AD), and 19 participants with DLB. The visual read inter-reader agreement was excellent ( = 0.95, CI 0.91-0.99). None of the amyloid-negative CU participants (0/92 [0%]) and 1 amyloid-negative participant with DLB (1/12 [8.3%]) were tau-positive. Among amyloid-positive participants, 13 CU participants (13/52 [25.0%]), 85 with AD (85/97 [87.6%]), and 3 with DLB (3/7 [42.9%]) were tau-positive. Two-year follow-up visual read status was identical to baseline. Tau-PET visual read corresponded strongly to SUVr status, with up to 90.4% concordance. Visual read tau positivity was associated with a decline on the MMSE in CU participants (β =-0.52, CI-0.74 to-0.30, p < 0.001) and participants with AD (β =-0.30, CI-0.58 to-0.02, p = 0.04).DiscussionThe excellent inter-reader agreement, strong correspondence with SUVr, and longitudinal stability indicate that the visual read method is reliable and robust, supporting clinical application. Furthermore, visual read tau positivity was associated with prospective cognitive decline, highlighting its additional prognostic potential. Future studies in unselected cohorts are needed for a better generalizability to the clinical population.Classification of EvidenceThis study provides Class II evidence that [18F]flortaucipir visual read accurately distinguishes patients with low tau-Tracer binding from those with high tau-Tracer binding and is associated with amyloid positivity and cognitive decline.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
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De Koning, Lotte A.Vrije Universiteit Amsterdam,Amsterdam Neuroscience
(författare)
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Rikken, Roos M.Vrije Universiteit Amsterdam,Amsterdam Neuroscience
(författare)
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Verfaillie, Sander C.J.Academic Medical Center of University of Amsterdam (AMC),Vrije Universiteit Amsterdam,Amsterdam Neuroscience
(författare)
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Visser, DeniseVrije Universiteit Amsterdam,Amsterdam Neuroscience
(författare)
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Den Braber, AnoukAmsterdam Neuroscience,Vrije Universiteit Amsterdam
(författare)
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Tomassen, JoriAmsterdam Neuroscience,Vrije Universiteit Amsterdam
(författare)
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Van De Beek, MarleenVrije Universiteit Amsterdam,Amsterdam Neuroscience
(författare)
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Collij, Lyduine E.Vrije Universiteit Amsterdam,Amsterdam Neuroscience
(författare)
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Lemstra, Afina W.Vrije Universiteit Amsterdam,Amsterdam Neuroscience
(författare)
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Windhorst, Albert D.Vrije Universiteit Amsterdam,Amsterdam Neuroscience
(författare)
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Barkhof, FrederikUniversity College London,Amsterdam Neuroscience,Vrije Universiteit Amsterdam
(författare)
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Golla, Sandeep S.V.Vrije Universiteit Amsterdam,Amsterdam Neuroscience
(författare)
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Visser, Pieter JelleKarolinska Institute,Maastricht University,Vrije Universiteit Amsterdam,Amsterdam Neuroscience
(författare)
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Scheltens, PhilipAmsterdam Neuroscience,Vrije Universiteit Amsterdam
(författare)
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Van Der Flier, Wiesje M.Vrije Universiteit Amsterdam,Amsterdam Neuroscience
(författare)
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Ossenkoppele, RikLund University,Lunds universitet,Klinisk minnesforskning,Forskargrupper vid Lunds universitet,LU profilområde: Proaktivt åldrande,Lunds universitets profilområden,Clinical Memory Research,Lund University Research Groups,LU Profile Area: Proactive Ageing,Lund University Profile areas(Swepub:lu)ri1513os
(författare)
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Van Berckel, Bart N.M.Vrije Universiteit Amsterdam,Amsterdam Neuroscience
(författare)
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Van De Giessen, ElsmariekeAmsterdam Neuroscience,Vrije Universiteit Amsterdam
(författare)
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Vrije Universiteit AmsterdamAmsterdam Neuroscience
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Neurology101:19, s. 1850-18620028-38781526-632X
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Coomans, Emma M.
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De Koning, Lotte ...
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Rikken, Roos M.
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Verfaillie, Sand ...
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Visser, Denise
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Den Braber, Anou ...
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Tomassen, Jori
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Van De Beek, Mar ...
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Collij, Lyduine ...
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Lemstra, Afina W ...
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Windhorst, Alber ...
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Barkhof, Frederi ...
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Golla, Sandeep S ...
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Visser, Pieter J ...
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Scheltens, Phili ...
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Van Der Flier, W ...
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Ossenkoppele, Ri ...
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