Evidence map›Paper›PMID 34078145›Full record

ArticleJournal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism2021

Reliability of task-specific neuronal activation assessed with functional PET, ASL and BOLD imaging.

Lucas Rischka, Godber M Godbersen, Verena Pichler, Paul Michenthaler, Sebastian Klug, Manfred Klöbl, Vera Ritter, Wolfgang Wadsak, Marcus Hacker, Siegfried Kasper and 2 more

Open access · hybridAbstract readComparative Study
In one paragraph

Article in Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
3.9field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 33 citations in OpenAlex.

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  4. Optimal filtering strategies for task-specific functional PET imaging.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2025
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  11. Nature biomedical engineering · 2023
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors at 2 institutions in 1 country.

Lucas RischkaDepartment of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria.ORCID 0000-0002-6766-857X
Godber M GodbersenDepartment of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria.
Verena PichlerDepartment of Biomedical Imaging and Image-guided Therapy, Division of Nuclear Medicine, Medical University of Vienna, Vienna, Austria.
Paul MichenthalerDepartment of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria.
Sebastian KlugDepartment of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria.ORCID 0000-0001-8714-6608
Manfred KlöblDepartment of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria.ORCID 0000-0003-2107-8803
Vera RitterDepartment of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria.
Wolfgang WadsakDepartment of Biomedical Imaging and Image-guided Therapy, Division of Nuclear Medicine, Medical University of Vienna, Vienna, Austria.
Marcus HackerDepartment of Biomedical Imaging and Image-guided Therapy, Division of Nuclear Medicine, Medical University of Vienna, Vienna, Austria.
Siegfried KasperDepartment of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria.
Rupert LanzenbergerDepartment of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria.
Andreas HahnDepartment of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria.ORCID 0000-0001-9727-7580
Medical University of Vienna · ATUniversity of Vienna · AT

Funding

Austrian Science Fund FWF KLI 610
6 · The paper itself

Abstract

Mapping the neuronal response during cognitive processing is of crucial importance to gain new insights into human brain function. BOLD imaging and ASL are established MRI methods in this endeavor. Recently, the novel approach of functional PET (fPET) was introduced, enabling absolute quantification of glucose metabolism at rest and during task execution in a single measurement. Here, we report test-retest reliability of fPET in direct comparison to BOLD imaging and ASL. Twenty healthy subjects underwent two PET/MRI measurements, providing estimates of glucose metabolism, cerebral blood flow (CBF) and blood oxygenation. A cognitive task was employed with different levels of difficulty requiring visual-motor coordination. Task-specific neuronal activation was robustly detected with all three imaging approaches. The highest reliability was obtained for glucose metabolism at rest. Although this dropped during task performance it was still comparable to that of CBF. In contrast, BOLD imaging yielded high performance only for qualitative spatial overlap of task effects but not for quantitative comparison. Hence, the combined assessment of fPET and ASL offers reliable and simultaneous absolute quantification of glucose metabolism and CBF at rest and task.

Indexed as

AdultBrain MappingCerebrovascular CirculationCognitionEvaluation Studies as TopicFemaleGlucoseHumansMagnetic Resonance ImagingMaleOxygen SaturationPositron-Emission TomographyPsychomotor PerformanceReproducibility of ResultsRestSpin LabelsGlucoseSpin LabelsfMRIfunctional PET (fPET)PET/MRItask-specific activationtest-retest reliability

Identifiers

PMID34078145
PMCPMC8545051
OpenAlexW3164783311

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.