Prospective slice-by-slice motion correction reduces false positive activations in fMRI with task-correlated motion

Schulz, Jessica; Siegert, Thomas; Bazin, Pierre-Louis; Maclaren, Julian; Herbst, M.; Zaitsev, Maxim; Turner, Robert

doi:10.1016/j.neuroimage.2013.08.006

Cited by 34 publications

(44 citation statements)

References 40 publications

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“…Rotenberg et al (2013) and Schulz et al (2014) both demonstrated improvements in data quality when subject motion, both deliberate and task‐correlated, was present. Zaitsev et al (2016) conducted an experiment with a similar paradigm but did not find any significant differences, likely due to the smaller sample size, choice of robust activation pattern and poor marker adhesion.…”

Section: Discussionmentioning

confidence: 99%

“…Most previous studies that investigated the effectiveness of PMC used deliberate subject motion (Ooi, Krueger, Muraskin, Thomas, & Brown, 2011; Schulz et al, 2014; Todd et al, 2015), which may not be representative of actual participant behavior in the scanner. For instance, deliberate motion is likely to result in larger head displacements than what would be observed in a typical participant instructed to remain still, and thus result in an overestimation of the benefit of PMC.…”

Section: Introductionmentioning

confidence: 99%

“…For task‐based fMRI, Rotenberg et al (2013) demonstrated that using a stereo optical tracking setup can significantly reduce false‐positive rates in actively moving participants. Schulz et al (2014) adopted an experimental design where participants were asked to keep their head still while moving their legs and also demonstrated a reduction in false positives. While no deliberate head motion is carried out by the participant, task correlated motion is still present and hence, unlikely to be representative of typical participant behavior in the scanner.…”

Section: Introductionmentioning

confidence: 99%

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Prospective motion correction improves the sensitivity of fMRI pattern decoding

Huang

Carlin

Alink

et al. 2018

Human Brain Mapping

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We evaluated the effectiveness of prospective motion correction (PMC) on a simple visual task when no deliberate subject motion was present. The PMC system utilizes an in‐bore optical camera to track an external marker attached to the participant via a custom‐molded mouthpiece. The study was conducted at two resolutions (1.5 mm vs 3 mm) and under three conditions (PMC On and Mouthpiece On vs PMC Off and Mouthpiece On vs PMC Off and Mouthpiece Off). Multiple data analysis methods were conducted, including univariate and multivariate approaches, and we demonstrated that the benefit of PMC is most apparent for multi‐voxel pattern decoding at higher resolutions. Additional testing on two participants showed that our inexpensive, commercially available mouthpiece solution produced comparable results to a dentist‐molded mouthpiece. Our results showed that PMC is increasingly important at higher resolutions for analyses that require accurate voxel registration across time.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Prospective motion correction improves the sensitivity of fMRI pattern decoding

Huang

Carlin

Alink

et al. 2018

Human Brain Mapping

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“…The topic of prospective motion correction has gained popularity in the last few years resulting in numerous new applications including fMRI (101, 102), DWI (103, 104), and spectroscopy (105-107). Although it is an extremely promising approach for neuroimaging, it does have some limitations, including practical considerations (e.g., marker fixation for external tracking systems) and uncorrectable effects (e.g., motion-related B0 distortions (108)).…”

Section: Artefact Mitigation Strategiesmentioning

confidence: 99%

Motion artifacts in MRI: A complex problem with many partial solutions

Zaitsev

Maclaren

Herbst

2015

Magnetic Resonance Imaging

551

481

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Subject motion during magnetic resonance imaging (MRI) has been problematic since its introduction as a clinical imaging modality. While sensitivity to particle motion or blood flow can be used to provide useful image contrast, bulk motion presents a considerable problem in the majority of clinical applications. It is one of the most frequent sources of artefacts. Over 30 years of research have produced numerous methods to mitigate or correct for motion artefacts, but no single method can be applied in all imaging situations. Instead, a ‘toolbox’ of methods exists, where each tool is suitable for some tasks, but not for others. This article reviews the origins of motion artefacts and presents current mitigation and correction methods. In some imaging situations, the currently available motion correction tools are highly effective; in other cases, appropriate tools still need to be developed. It seems likely that this multifaceted approach will be what eventually solves the motion sensitivity problem in MRI, rather than a single solution that is effective in all situations. This review places a strong emphasis on explaining the physics behind the occurrence of such artefacts, with the aim of aiding artefact detection and mitigation in particular clinical situations.

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“…The fixation device in combination with the sphinx position reduces normal motion artifacts and artifacts from breathing, but not those from jaw motion. The latter artifacts can be reduced by intensive conditioning of the monkey and a jaw motion sensor in combination with image motion correction technics, as shown by Keliris et al 2007 [14,34,35]. This issue could be more relevant when using the horizontal MRI system with a sphinx position in comparison to vertical MRI systems with the monkey in a more natural sitting position.…”

Section: Discussionmentioning

confidence: 99%

The Travelling-Wave Primate System: A New Solution for Magnetic Resonance Imaging of Macaque Monkeys at 7 Tesla Ultra-High Field

Herrmann¹,

Mallow²,

Plaumann³

et al. 2015

PLoS ONE

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IntroductionNeuroimaging of macaques at ultra-high field (UHF) is usually conducted by combining a volume coil for transmit (Tx) and a phased array coil for receive (Rx) tightly enclosing the monkey’s head. Good results have been achieved using vertical or horizontal magnets with implanted or near-surface coils. An alternative and less costly approach, the travelling-wave (TW) excitation concept, may offer more flexible experimental setups on human whole-body UHF magnetic resonance imaging (MRI) systems, which are now more widely available. Goal of the study was developing and validating the TW concept for in vivo primate MRI.MethodsThe TW Primate System (TWPS) uses the radio frequency shield of the gradient system of a human whole-body 7 T MRI system as a waveguide to propagate a circularly polarized B1 field represented by the TE11 mode. This mode is excited by a specifically designed 2-port patch antenna. For receive, a customized neuroimaging monkey head receive-only coil was designed. Field simulation was used for development and evaluation. Signal-to-noise ratio (SNR) was compared with data acquired with a conventional monkey volume head coil consisting of a homogeneous transmit coil and a 12-element receive coil.ResultsThe TWPS offered good image homogeneity in the volume-of-interest Turbo spin echo images exhibited a high contrast, allowing a clear depiction of the cerebral anatomy. As a prerequisite for functional MRI, whole brain ultrafast echo planar images were successfully acquired.ConclusionThe TWPS presents a promising new approach to fMRI of macaques for research groups with access to a horizontal UHF MRI system.

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Prospective slice-by-slice motion correction reduces false positive activations in fMRI with task-correlated motion

Cited by 34 publications

References 40 publications

Prospective motion correction improves the sensitivity of fMRI pattern decoding

Prospective motion correction improves the sensitivity of fMRI pattern decoding

Motion artifacts in MRI: A complex problem with many partial solutions

The Travelling-Wave Primate System: A New Solution for Magnetic Resonance Imaging of Macaque Monkeys at 7 Tesla Ultra-High Field

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