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Test–retest repeata...
Test–retest repeatability of [18F]Flortaucipir PET in Alzheimer’s disease and cognitively normal individuals
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- Timmers, Tessa (author)
- Amsterdam UMC - Vrije Universiteit Amsterdam,Vrije Universiteit Amsterdam
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- Ossenkoppele, Rik (author)
- Lund University,Lunds universitet,Klinisk minnesforskning,Forskargrupper vid Lunds universitet,Clinical Memory Research,Lund University Research Groups,Vrije Universiteit Amsterdam,Amsterdam UMC - Vrije Universiteit Amsterdam
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- Visser, Denise (author)
- Vrije Universiteit Amsterdam,Amsterdam UMC - Vrije Universiteit Amsterdam
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- Tuncel, Hayel (author)
- Amsterdam UMC - Vrije Universiteit Amsterdam,Vrije Universiteit Amsterdam
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- Wolters, Emma E. (author)
- Amsterdam UMC - Vrije Universiteit Amsterdam,Vrije Universiteit Amsterdam
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- Verfaillie, Sander C.J. (author)
- Amsterdam UMC - Vrije Universiteit Amsterdam,Vrije Universiteit Amsterdam
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- van der Flier, Wiesje M. (author)
- Vrije Universiteit Amsterdam,Amsterdam UMC - Vrije Universiteit Amsterdam
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- Boellaard, Ronald (author)
- Amsterdam UMC - Vrije Universiteit Amsterdam,Vrije Universiteit Amsterdam
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- Golla, Sandeep S.V. (author)
- Amsterdam UMC - Vrije Universiteit Amsterdam,Vrije Universiteit Amsterdam
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- van Berckel, Bart N.M. (author)
- Vrije Universiteit Amsterdam,Amsterdam UMC - Vrije Universiteit Amsterdam
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(creator_code:org_t)
- 2020
- 2020
- English 11 s.
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In: Journal of Cerebral Blood Flow and Metabolism. - 0271-678X. ; 40:12, s. 2464-2474
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Abstract
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- The aim of this study was to investigate the test–retest (TRT) repeatability of various parametric quantification methods for [18F]Flortaucipir positron emission tomography (PET). We included eight subjects with dementia or mild cognitive impairment due to Alzheimer’s disease and six cognitively normal subjects. All underwent two 130-min dynamic [18F]Flortaucipir PET scans within 3 ± 1 weeks. Data were analyzed using reference region models receptor parametric mapping (RPM), simplified reference tissue method 2 (SRTM2) and reference logan (RLogan), as well as standardized uptake value ratios (SUVr, time intervals 40–60, 80–100 and 110–130 min post-injection) with cerebellar gray matter as reference region. We obtained distribution volume ratio or SUVr, first for all brain regions and then in three tau-specific regions-of-interest (ROIs). TRT repeatability (%) was defined as |retest–test|/(average (test + retest)) × 100. For all methods and across ROIs, TRT repeatability ranged from (median (IQR)) 0.84% (0.68–2.15) to 6.84% (2.99–11.50). TRT repeatability was good for all reference methods used, although semi-quantitative models (i.e. SUVr) performed marginally worse than quantitative models, for instance TRT repeatability of RPM: 1.98% (0.78–3.58) vs. SUVr80–100: 3.05% (1.28–5.52), p < 0.001. Furthermore, for SUVr80–100 and SUVr110–130, with higher average SUVr, more variation was observed. In conclusion, while TRT repeatability was good for all models used, quantitative methods performed slightly better than semi-quantitative methods.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Neurologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Neurology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Radiologi och bildbehandling (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Radiology, Nuclear Medicine and Medical Imaging (hsv//eng)
Keyword
- Alzheimer’s disease
- parametric methods
- test–retest repeatability
- [F]Flortaucipir
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Timmers, Tessa
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Ossenkoppele, Ri ...
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Visser, Denise
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Tuncel, Hayel
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Wolters, Emma E.
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Verfaillie, Sand ...
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show more...
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van der Flier, W ...
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Boellaard, Ronal ...
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Golla, Sandeep S ...
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van Berckel, Bar ...
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- About the subject
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Clinical Medicin ...
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and Neurology
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Clinical Medicin ...
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and Radiology Nuclea ...
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Journal of Cereb ...
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Lund University