Full Text Journal Articles by
Author Richard G Wise

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Graded fMRI Neurofeedback Training of Motor Imagery in Middle Cerebral Artery Stroke Patients: A Preregistered Proof-of-Concept Study.

David M A Mehler, Angharad N Williams, Joseph R Whittaker, Florian Krause, Michael Lührs, Stefanie Kunas, Richard G Wise, Hamsaraj G M Shetty, Duncan L Turner, David E J Linden,

Ischemic stroke of the middle cerebral artery (MCA), a major brain vessel that supplies the primary motor and premotor cortex, is one of the most common causes for severe upper limb impairment. Currently available motor rehabilitation training largely lacks satisfying efficacy with over 70% of stroke survivors showing residual upper ... Read more >>

Front Hum Neurosci (Frontiers in human neuroscience)
[2020, 14:226]

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Predictors of training-related improvement in visuomotor performance in patients with multiple sclerosis: A behavioural and MRI study.

Ilona Lipp, Catherine Foster, Rachael Stickland, Eleonora Sgarlata, Emma C Tallantyre, Alison E Davidson, Neil P Robertson, Derek K Jones, Richard G Wise, Valentina Tomassini,

BACKGROUND:The development of tailored recovery-oriented strategies in multiple sclerosis requires early identification of an individual's potential for functional recovery. OBJECTIVE:To identify predictors of visuomotor performance improvements, a proxy of functional recovery, using a predictive statistical model that combines demographic, clinical and magnetic resonance imaging (MRI) data. METHODS:Right-handed multiple sclerosis patients ... Read more >>

Mult. Scler. (Multiple sclerosis (Houndmills, Basingstoke, England))
[2020, :1352458520943788]

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Brain Network Modularity During a Sustained Working-Memory Task.

Marta Moraschi, Daniele Mascali, Silvia Tommasin, Tommaso Gili, Ibrahim Eid Hassan, Michela Fratini, Mauro DiNuzzo, Richard G Wise, Silvia Mangia, Emiliano Macaluso, Federico Giove,

Spontaneous oscillations of the blood oxygenation level-dependent (BOLD) signal are spatially synchronized within specific brain networks and are thought to reflect synchronized brain activity. Networks are modulated by the performance of a task, even if the exact features and degree of such modulations are still elusive. The presence of networks ... Read more >>

Front Physiol (Frontiers in physiology)
[2020, 11:422]

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Cerebral Metabolic Changes During Visuomotor Adaptation Assessed Using Quantitative fMRI.

Catherine Foster, Jessica J Steventon, Daniel Helme, Valentina Tomassini, Richard G Wise,

The brain retains a lifelong ability to adapt through learning and in response to injury or disease-related damage, a process known as functional neuroplasticity. The neural energetics underlying functional brain plasticity have not been thoroughly investigated experimentally in the healthy human brain. A better understanding of the blood flow and ... Read more >>

Front Physiol (Frontiers in physiology)
[2020, 11:428]

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Most Small Cerebral Cortical Veins Demonstrate Significant Flow Pulsatility: A Human Phase Contrast MRI Study at 7T.

Ian D Driver, Maarika Traat, Fabrizio Fasano, Richard G Wise,

Phase contrast MRI (pcMRI) has been used to investigate flow pulsatility in cerebral arteries, larger cerebral veins, and the cerebrospinal fluid (CSF). Such measurements of intracranial pulsatility and compliance are beginning to inform understanding of the pathophysiology of conditions including normal pressure hydrocephalus, multiple sclerosis, and dementias. We demonstrate the ... Read more >>

Front Neurosci (Frontiers in neuroscience)
[2020, 14:415]

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Specific absorption rate implications of within-scan patient head motion for ultra-high field MRI.

Emre Kopanoglu, Cem M Deniz, M Arcan Erturk, Richard G Wise,

PURPOSE:This study investigates the implications of all degrees of freedom of within-scan patient head motion on patient safety. METHODS:Electromagnetic simulations were performed by displacing and/or rotating a virtual body model inside an 8-channel transmit array to simulate 6 degrees of freedom of motion. Rotations of up to 20° and displacements of ... Read more >>

Magn Reson Med (Magnetic resonance in medicine)
[2020, 84(5):2724-2738]

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Altered cerebrovascular response to acute exercise in patients with Huntington's disease.

Jessica J Steventon, Hannah Furby, James Ralph, Peter O'Callaghan, Anne E Rosser, Richard G Wise, Monica Busse, Kevin Murphy,

The objective of this study was to determine whether a single session of exercise was sufficient to induce cerebral adaptations in individuals with Huntington's disease and to explore the time dynamics of any acute cerebrovascular response. In this case-control study, we employed arterial-spin labelling MRI in 19 Huntington's disease gene-positive ... Read more >>

Brain Commun (Brain communications)
[2020, 2(1):fcaa044]

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Assessment of the Effects of Aerobic Fitness on Cerebrovascular Function in Young Adults Using Multiple Inversion Time Arterial Spin Labeling MRI.

Catherine Foster, Jessica J Steventon, Daniel Helme, Valentina Tomassini, Richard G Wise,

This cross-sectional study investigated the effects of aerobic fitness on cerebrovascular function in the healthy brain. Gray matter cerebral blood flow (CBF) and cerebrovascular reactivity (CVR) were quantified in a sample of young adults within a normal fitness range. Based on existing Transcranial Doppler ultrasound and fMRI evidence, we predicted ... Read more >>

Front Physiol (Frontiers in physiology)
[2020, 11:360]

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Retrograde blood flow in the internal jugular veins of humans with hypertension may have implications for cerebral arterial blood flow.

Jonathan C L Rodrigues, Galina Strelko, Esther A H Warnert, Amy E Burchell, Sandra Neumann, Laura E K Ratcliffe, Ashley D Harris, Benjamin Chant, Ruth Bowles, Angus K Nightingale, Richard G Wise, Julian F R Paton, Emma C Hart,

OBJECTIVES:To use multi-parametric magnetic resonance imaging (MRI) to test the hypothesis that hypertensives would have higher retrograde venous blood flow (RVBF) in the internal jugular veins (IJV) vs. normotensives, and that this would inversely correlate with arterial inflow and gray matter, white matter, and cerebrospinal fluid volumes. METHODS:Following local institutional ... Read more >>

Eur Radiol (European radiology)
[2020, 30(7):3890-3899]

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Mild Propofol Sedation Reduces Frontal Lobe and Thalamic Cerebral Blood Flow: An Arterial Spin Labeling Study.

Neeraj Saxena, Tommaso Gili, Ana Diukova, Danielle Huckle, Judith E Hall, Richard G Wise,

Mechanisms of anesthetic drug-induced sedation and unconsciousness are still incompletely understood. Functional neuroimaging modalities provide a window to study brain function changes during anesthesia allowing us to explore the sequence of neuro-physiological changes associated with anesthesia. Cerebral perfusion change under an assumption of intact neurovascular coupling is an indicator of ... Read more >>

Front Physiol (Frontiers in physiology)
[2019, 10:1541]

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Multi-site harmonization of 7 tesla MRI neuroimaging protocols.

William T Clarke, Olivier Mougin, Ian D Driver, Catarina Rua, Andrew T Morgan, Michael Asghar, Stuart Clare, Susan Francis, Richard G Wise, Christopher T Rodgers, Adrian Carpenter, Keith Muir, Richard Bowtell,

Increasing numbers of 7 T (7 T) magnetic resonance imaging (MRI) scanners are in research and clinical use. 7 T MRI can increase the scanning speed, spatial resolution and contrast-to-noise-ratio of many neuroimaging protocols, but technical challenges in implementation have been addressed in a variety of ways across sites. In order to facilitate ... Read more >>

Neuroimage (NeuroImage)
[2020, 206:116335]

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Venous contribution to sodium MRI in the human brain.

Ian D Driver, Robert W Stobbe, Richard G Wise, Christian Beaulieu,

PURPOSE:Sodium MRI shows great promise as a marker for cerebral metabolic dysfunction in stroke, brain tumor, and neurodegenerative pathologies. However, cerebral blood vessels, whose volume and function are perturbed in these pathologies, have elevated sodium concentrations relative to surrounding tissue. This study aims to assess whether this fluid compartment could ... Read more >>

Magn Reson Med (Magnetic resonance in medicine)
[2020, 83(4):1331-1338]

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Cardiorespiratory fitness is associated with increased middle cerebral arterial compliance and decreased cerebral blood flow in young healthy adults: A pulsed ASL MRI study.

Hannah V Furby, Esther Ah Warnert, Christopher J Marley, Damian M Bailey, Richard G Wise,

Cardiorespiratory fitness is thought to have beneficial effects on systemic vascular health, in part, by decreasing arterial stiffness. However, in the absence of non-invasive methods, it remains unknown whether this effect extends to the cerebrovasculature. The present study uses a novel pulsed arterial spin labelling (pASL) technique to explore the ... Read more >>

J. Cereb. Blood Flow Metab. (Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism)
[2019, :271678X19865449]

Cited: 1 time

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Regional Cerebral Activation Accompanies Sympathoexcitation in Women With Polycystic Ovary Syndrome.

Andrew J Lansdown, Esther A H Warnert, Yrsa Sverrisdóttir, Richard G Wise, D Aled Rees,

CONTEXT:Polycystic ovary syndrome (PCOS) is associated with increased sympathetic nervous system activation, but the cerebral pathways involved are unclear. OBJECTIVE:To compare cerebral [blood oxygen level-dependent (BOLD) functional MRI], pressor [blood pressure (BP), heart rate (HR], and muscle sympathetic nerve activity (MSNA) responses to isometric forearm contraction (IFC) in women with ... Read more >>

J. Clin. Endocrinol. Metab. (The Journal of clinical endocrinology and metabolism)
[2019, 104(9):3614-3623]

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Whole brain 31 P MRSI at 7T with a dual-tuned receive array.

Benjamin C Rowland, Ian D Driver, Mohamed Tachrount, Dennis W J Klomp, Debra Rivera, Ria Forner, Anh Pham, Michel Italiaander, Richard G Wise,

PURPOSE:The design and performance of a novel head coil setup for 31 P spectroscopy at ultra-high field strengths (7T) is presented. The described system supports measurements at both the 1 H and 31 P resonance frequencies. METHODS:The novel coil consists of 2, actively detunable, coaxial birdcage coils to give homogeneous ... Read more >>

Magn Reson Med (Magnetic resonance in medicine)
[2020, 83(2):765-775]

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Traumatic imagery following glucocorticoid administration in earthquake-related post-traumatic stress disorder: A preliminary functional magnetic resonance imaging study.

Katie M Douglas, Samantha Groves, Richard J Porter, Jenny Jordan, Lynere Wilson, Tracy R Melzer, Richard G Wise, Jonathan I Bisson, Caroline J Bell,

OBJECTIVE:Post-traumatic stress disorder involves excessive retrieval of traumatic memories. Glucocorticoids impair declarative memory retrieval. This preliminary study examined the effect of acute hydrocortisone administration on brain activation in individuals with earthquake-related post-traumatic stress disorder compared with earthquake-exposed healthy individuals, during retrieval of traumatic memories. METHOD:Participants exposed to earthquakes with (n = 11) ... Read more >>

Aust N Z J Psychiatry (The Australian and New Zealand journal of psychiatry)
[2019, 53(12):1167-1178]

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Comparing MRI metrics to quantify white matter microstructural damage in multiple sclerosis.

Ilona Lipp, Derek K Jones, Sonya Bells, Eleonora Sgarlata, Catherine Foster, Rachael Stickland, Alison E Davidson, Emma C Tallantyre, Neil P Robertson, Richard G Wise, Valentina Tomassini,

Quantifying white matter damage in vivo is becoming increasingly important for investigating the effects of neuroprotective and repair strategies in multiple sclerosis (MS). While various approaches are available, the relationship between MRI-based metrics of white matter microstructure in the disease, that is, to what extent the metrics provide complementary versus ... Read more >>

Hum Brain Mapp (Human brain mapping)
[2019, 40(10):2917-2932]

Cited: 2 times

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Polygenic impact of common genetic risk loci for Alzheimer's disease on cerebral blood flow in young individuals.

Hannah L Chandler, Richard G Wise, Kevin Murphy, Katherine E Tansey, David E J Linden, Thomas M Lancaster,

Genome-wide association studies (GWAS) show that many common alleles confer risk for developing Alzheimer's disease (AD). These risk loci may contribute to MRI alterations in young individuals, preceding the clinical manifestations of AD. Prior evidence identifies vascular dysregulation as the earliest marker of disease progression. However, it remains unclear whether ... Read more >>

Sci Rep (Scientific reports)
[2019, 9(1):467]

Cited: 2 times

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Can Blood Oxygenation Level Dependent Functional Magnetic Resonance Imaging Be Used Accurately to Compare Older and Younger Populations? A Mini Literature Review.

Melissa E Wright, Richard G Wise,

A wealth of research has investigated the aging brain using blood oxygenation level dependent functional MRI [Blood oxygen level dependent (BOLD) functional magnetic resonance imaging (fMRI)]. However, many studies do not consider the aging of the cerebrovascular system, which can influence the BOLD signal independently from neural activity, limiting what ... Read more >>

Front Aging Neurosci (Frontiers in aging neuroscience)
[2018, 10:371]

Cited: 3 times

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Modeling of dynamic cerebrovascular reactivity to spontaneous and externally induced CO2 fluctuations in the human brain using BOLD-fMRI.

Prokopis C Prokopiou, Kyle T S Pattinson, Richard G Wise, Georgios D Mitsis,

In this work, we investigate the regional characteristics of the dynamic interactions between arterial CO2 and BOLD (dynamic cerebrovascular reactivity - dCVR) during normal breathing and hypercapnic, externally induced step CO2 challenges. To obtain dCVR curves at each voxel, we use a custom set of basis functions based on the ... Read more >>

Neuroimage (NeuroImage)
[2019, 186:533-548]

Cited: 1 time

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The BOLD response in primary motor cortex and supplementary motor area during kinesthetic motor imagery based graded fMRI neurofeedback.

David M A Mehler, Angharad N Williams, Florian Krause, Michael Lührs, Richard G Wise, Duncan L Turner, David E J Linden, Joseph R Whittaker,

There is increasing interest in exploring the use of functional MRI neurofeedback (fMRI-NF) as a therapeutic technique for a range of neurological conditions such as stroke and Parkinson's disease (PD). One main therapeutic potential of fMRI-NF is to enhance volitional control of damaged or dysfunctional neural nodes and networks via ... Read more >>

Neuroimage (NeuroImage)
[2019, 184:36-44]

Cited: 3 times

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Scale-invariant rearrangement of resting state networks in the human brain under sustained stimulation.

Silvia Tommasin, Daniele Mascali, Marta Moraschi, Tommaso Gili, Ibrahim Eid Hassan, Michela Fratini, Mauro DiNuzzo, Richard G Wise, Silvia Mangia, Emiliano Macaluso, Federico Giove,

Brain activity at rest is characterized by widely distributed and spatially specific patterns of synchronized low-frequency blood-oxygenation level-dependent (BOLD) fluctuations, which correspond to physiologically relevant brain networks. This network behaviour is known to persist also during task execution, yet the details underlying task-associated modulations of within- and between-network connectivity are ... Read more >>

Neuroimage (NeuroImage)
[2018, 179:570-581]

Cited: 3 times

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Neurovascular Coupling During Visual Stimulation in Multiple Sclerosis: A MEG-fMRI Study.

Rachael Stickland, Marek Allen, Lorenzo Magazzini, Krish D Singh, Richard G Wise, Valentina Tomassini,

The process of neurovascular coupling ensures that increases in neuronal activity are fed by increases in cerebral blood flow. Evidence suggests that neurovascular coupling may be impaired in Multiple Sclerosis (MS) due to a combination of brain hypoperfusion, altered cerebrovascular reactivity and oxygen metabolism, and altered levels of vasoactive compounds. ... Read more >>

Neuroscience (Neuroscience)
[2019, 403:54-69]

Cited: 2 times

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Assessing the repeatability of absolute CMRO2, OEF and haemodynamic measurements from calibrated fMRI.

Alberto Merola, Michael A Germuska, Kevin Murphy, Richard G Wise,

As energy metabolism in the brain is largely oxidative, the measurement of cerebral metabolic rate of oxygen consumption (CMRO2) is a desirable biomarker for quantifying brain activity and tissue viability. Currently, PET techniques based on oxygen isotopes are the gold standard for obtaining whole brain CMRO2 maps. Among MRI techniques ... Read more >>

Neuroimage (NeuroImage)
[2018, 173:113-126]

Cited: 1 time

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Calcium channel blockade with nimodipine reverses MRI evidence of cerebral oedema following acute hypoxia.

Matthew J Rowland, Martyn Ezra, Anderson Winkler, Payashi Garry, Catherine Lamb, Michael Kelly, Thomas W Okell, Jon Westbrook, Richard G Wise, Gwenaëlle Douaud, Kyle Ts Pattinson,

Acute cerebral hypoxia causes rapid calcium shifts leading to neuronal damage and death. Calcium channel antagonists improve outcomes in some clinical conditions, but mechanisms remain unclear. In 18 healthy participants we: (i) quantified with multiparametric MRI the effect of hypoxia on the thalamus, a region particularly sensitive to hypoxia, and ... Read more >>

J. Cereb. Blood Flow Metab. (Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism)
[2019, 39(2):285-301]

Cited: 2 times

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