ArticlePloS one2012
Multishot versus single-shot pulse sequences in very high field fMRI: a comparison using retinotopic mapping.
Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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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.
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Who cites it
15 citing papers in PubMed, 22 citations in OpenAlex.
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- Impact of autocalibration method on accelerated EPI of the cervical spinal cord at 7 T.Magnetic resonance in medicine · 2022Article
- Continuous theta-burst stimulation over the left posterior inferior frontal gyrus induced compensatory plasticity in the language network.Frontiers in neurology · 2022Article
- The utility of maraviroc, an antiretroviral agent used to treat HIV, as treatment for opioid abuse? Data from MRI and behavioural testing in rats.Journal of psychiatry & neuroscience : JPN · 2021Article
- Inhaled Cannabis Suppresses Chemotherapy-Induced Neuropathic Nociception by Decoupling the Raphe Nucleus: A Functional Imaging Study in Rats.Biological psychiatry. Cognitive neuroscience and neuroimaging · 2021Article
- Multi-shot acquisitions for stimulus-evoked spinal cord BOLD fMRI.Magnetic resonance in medicine · 2021Article
- Exposure to methylphenidate during peri-adolescence decouples the prefrontal cortex: a multimodal MRI study.American journal of translational research · 2021Article
- Using multimodal MRI to investigate alterations in brain structure and function in the BBZDR/Wor rat model of type 2 diabetes.Animal models and experimental medicine · 2020Article
- Resolving the Spatial Profile of Figure Enhancement in Human V1 through Population Receptive Field Modeling.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2020Article
- Segmented Echo Planar Imaging Improves Detection of Subcortical Functional Connectivity Networks in the Rat Brain.Scientific reports · 2019Article
- Neuroradiological Changes Following Single or Repetitive Mild TBI.Frontiers in systems neuroscience · 2019Article
- Evaluation of 2D multiband EPI imaging for high-resolution, whole-brain, task-based fMRI studies at 3T: Sensitivity and slice leakage artifacts.NeuroImage · 2016Article
- Distinct fine-scale fMRI activation patterns of contra- and ipsilateral somatosensory areas 3b and 1 in humans.Human brain mapping · 2014Article
- Enhanced phase regression with Savitzky-Golay filtering for high-resolution BOLD fMRI.Human brain mapping · 2014Article
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
Abstract
High-resolution functional MRI is a leading application for very high field (7 Tesla) human MR imaging. Though higher field strengths promise improvements in signal-to-noise ratios (SNR) and BOLD contrast relative to fMRI at 3 Tesla, these benefits may be partially offset by accompanying increases in geometric distortion and other off-resonance effects. Such effects may be especially pronounced with the single-shot EPI pulse sequences typically used for fMRI at standard field strengths. As an alternative, one might consider multishot pulse sequences, which may lead to somewhat lower temporal SNR than standard EPI, but which are also often substantially less susceptible to off-resonance effects. Here we consider retinotopic mapping of human visual cortex as a practical test case by which to compare examples of these sequence types for high-resolution fMRI at 7 Tesla. We performed polar angle retinotopic mapping at each of 3 isotropic resolutions (2.0, 1.7, and 1.1 mm) using both accelerated single-shot 2D EPI and accelerated multishot 3D gradient-echo pulse sequences. We found that single-shot EPI indeed led to greater temporal SNR and contrast-to-noise ratios (CNR) than the multishot sequences. However, additional distortion correction in postprocessing was required in order to fully realize these advantages, particularly at higher resolutions. The retinotopic maps produced by both sequence types were qualitatively comparable, and showed equivalent test/retest reliability. Thus, when surface-based analyses are planned, or in other circumstances where geometric distortion is of particular concern, multishot pulse sequences could provide a viable alternative to single-shot EPI.
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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.