BOLD fMRI at 9.4T with 3D stack-of-spirals readouts.

Alejandro Monreal-Madrigal, Denizhan Kurban, Desmond H Y Tse, Dimo Ivanov, Nicolas Boulant, Benedikt A Poser

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Article in Magma (New York, N.Y.), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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Authors and funding

6 authors.

Alejandro Monreal-MadrigalMaastricht Brain Imaging Centre, Faculty of Psychology and Neuroscience, Maastricht University, Maastricht, The Netherlands. alejandromonreal93@outlook.com.ORCID http://orcid.org/0009-0001-7757-2619

Denizhan KurbanMaastricht Brain Imaging Centre, Faculty of Psychology and Neuroscience, Maastricht University, Maastricht, The Netherlands.

Desmond H Y TseScannexus BV, Maastricht, The Netherlands.

Dimo IvanovMaastricht Brain Imaging Centre, Faculty of Psychology and Neuroscience, Maastricht University, Maastricht, The Netherlands.

Nicolas BoulantUniversity Paris-Saclay, CEA, CNRS, BAOBAB, NeuroSpin, Gif-Sur-Yvette, France.

Benedikt A PoserMaastricht Brain Imaging Centre, Faculty of Psychology and Neuroscience, Maastricht University, Maastricht, The Netherlands.

Funding

Horizon 2020 Framework Programme 885876

6 · The paper itself

Abstract

objectiveTo investigate the use of spiral readouts for sub-millimeter BOLD fMRI at 9.4T and to verify simulations of the BOLD point spread function (PSF) with functional experiments. MATERIALS AND

methodsSpiral readouts were evaluated through simulations and functional experiments to test their performance in sub-millimeter BOLD fMRI. Both spiral-out and spiral-in readout strategies were considered, with attention to echo time (TE) relative to T

resultsWe confirmed that a TE shorter than T DISCUSSION: Spiral-in readouts were found to be mainly useful for lower-resolution applications at ultra-high field (UHF). In contrast, segmented spiral-out readouts demonstrated strong potential for mesoscopic BOLD fMRI at ultra-high fields (> 7T).

Indexed as

Imaging, Three-DimensionalMagnetic Resonance ImagingAlgorithmsBrainBrain MappingComputer SimulationHumansImage Processing, Computer-AssistedOxygenPhantoms, ImagingSignal-To-Noise RatioOxygenBOLD fMRINon-Cartesian readoutsOpen-sourcePulseqUltra High Field

Identifiers

PMID41021105

DOI10.1007/s10334-025-01298-4

PMCPMC13124969

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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.