ArticleMagnetic resonance in medicine2016
Variable flip angle 3D-GRASE for high resolution fMRI at 7 tesla.
Article in Magnetic resonance in medicine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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.
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.
Who cites it
15 citing papers in PubMed.
- Layer-dependent functional connectivity methods.Progress in neurobiology · 2021Review
- A plug-and-play, lightweight, single-axis gradient insert design for increasing spatiotemporal resolution in echo planar imaging-based brain imaging.NMR in biomedicine · 2021Article
- Highly accelerated submillimeter resolution 3D GRASE with controlledMagnetic resonance in medicine · 2021Article
- Comparison of BOLD and CBV using 3D EPI and 3D GRASE for cortical layer functional MRI at 7 T.Magnetic resonance in medicine · 2020Article
- Article
- Compressed Sensing 3D-GRASE for faster High-Resolution MRI.Magnetic resonance in medicine · 2019Article
- Gradient- and spin-echo (GRASE) MR imaging: a long-existing technology that may find wide applications in modern era.Quantitative imaging in medicine and surgery · 2019Article
- Non-BOLD contrast for laminar fMRI in humans: CBF, CBV, and CMRNeuroImage · 2019Review
- Controlling TMagnetic resonance in medicine · 2018Article
- Cortical depth profiles of luminance contrast responses in human V1 and V2 using 7 T fMRI.Human brain mapping · 2018Article
- Visually-Driven Maps in Area 3b.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2018Article
- High resolution data analysis strategies for mesoscale human functional MRI at 7 and 9.4T.NeuroImage · 2018Article
- Pushing the limits of ultra-high resolution human brain imaging with SMS-EPI demonstrated for columnar level fMRI.NeuroImage · 2018Article
- Techniques for blood volume fMRI with VASO: From low-resolution mapping towards sub-millimeter layer-dependent applications.NeuroImage · 2018Article
- Sensitivity and specificity considerations for fMRI encoding, decoding, and mapping of auditory cortex at ultra-high field.NeuroImage · 2018Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
Abstract
purposeTo evaluate the use of variable flip angle refocusing pulse trains in single-shot three-dimensional gradient and spin-echo (3D-GRASE) to reduce blurring and increase the spatial coverage for high spatial resolution T2 -weighted functional MRI at 7 Tesla.
methodsVariable flip angle refocusing schemes in 3D-GRASE were calculated based on extended phase graph theory. The blurring along the slice (partition) direction was evaluated in simulations, as well as phantom and in vivo experiments. Furthermore, temporal stability and functional sensitivity at 0.8 mm isotropic resolution were assessed.
resultsVariable flip angle refocusing schemes yielded significantly reduced blurring compared with conventional refocusing schemes, with the full width at half maximum being approximately 30-40% narrower. Simultaneously, spatial coverage could be increased by 80%. The temporal signal-to-noise ratio was slightly reduced, but functional sensitivity was largely maintained due to increased functional contrast in the variable flip angle acquisitions. Signal-to-noise ratio and functional sensitivity were reduced more strongly in areas with insufficient radiofrequency transmission indicating higher sensitivity to experimental imperfections.
conclusionVariable flip angle refocusing schemes increase usability of 3D-GRASE for high-resolution functional MRI by reducing blurring and allowing increased spatial coverage. Magn Reson Med 76:897-904, 2016. © 2015 Wiley Periodicals, Inc.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.