T. Okell

发表

Multimodal population brain imaging in the UK Biobank prospective epidemiological study

P. Matthews, R. Collins, M. Jenkinson, 2016, Nature Neuroscience.

Consensus statement on current and emerging methods for the diagnosis and evaluation of cerebrovascular disease

M. Wintermark, Weili Lin, G. Zaharchuk, 2017, Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism.

Optimization and Reliability of Multiple Postlabeling Delay Pseudo-Continuous Arterial Spin Labeling during Rest and Stimulus-Induced Functional Task Activation

I. Tracey, M. Chappell, T. Okell, 2014, Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism.

The dorsal posterior insula subserves a fundamental role in human pain

J. Farrar, I. Tracey, T. Okell, 2015, Nature Neuroscience.

Cerebral blood flow quantification using vessel-encoded arterial spin labeling

P. Jezzard, M. Chappell, T. Okell, 2013, Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism.

Visual activation of extra-striate cortex in the absence of V1 activation

Christopher Kennard, Stephen L. Hicks, Thomas W. Okell, 2010, Neuropsychologia.

Steady-state MRI : methods for neuroimaging REVIEW

K. Miller, T. Okell, R. Tijssen, 2011 .

Relationship between haemodynamic impairment and collateral blood flow in carotid artery disease

M. Chappell, T. Okell, E. Petersen, 2017, Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism.

Combined angiography and perfusion using radial imaging and arterial spin labeling

Thomas W Okell, T. Okell, 2018, Magnetic resonance in medicine.

The advantages of radial trajectories for vessel-selective dynamic angiography with arterial spin labeling

P. Jezzard, T. Okell, E. Berry, 2019, bioRxiv.

Arterial spin labeling for the measurement of cerebral perfusion and angiography

P. Jezzard, M. Chappell, T. Okell, 2017, Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism.

Assessment of collateral blood flow in the brain using magnetic resonance imaging

T. Okell, 2011 .

Volume‐localized measurement of oxygen extraction fraction in the brain using MRI

P. Jezzard, T. Okell, M. Chiew, 2019, Magnetic resonance in medicine.

Serial quantification of brain oxygenation in acute stroke using streamlined-qBOLD

T. Okell, N. Blockley, D. Carone, 2017, bioRxiv.

Measurement of collateral perfusion in acute stroke: a vessel-encoded arterial spin labeling study

P. Jezzard, M. Chappell, T. Okell, 2019, Scientific Reports.

Quantitative blood flow measurement in rat brain with multiphase arterial spin labelling magnetic resonance imaging

Peter Jezzard, Michael A Chappell, Thomas W Okell, 2018, Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism.

Robust estimation of quantitative perfusion from multi‐phase pseudo‐continuous arterial spin labeling

M. Chappell, T. Okell, J. Larkin, 2019, Magnetic resonance in medicine.

Examination of optimized protocols for pCASL: Sensitivity to macrovascular contamination, flow dispersion, and prolonged arterial transit time

Joseph G. Woods, M. Chappell, T. Okell, 2021, Magnetic resonance in medicine.

Optimization of the spatial modulation function of vessel‐encoded pseudo‐continuous arterial spin labeling and its application to dynamic angiography

M. V. van Osch, T. Okell, Yuriko Suzuki, 2018, Magnetic resonance in medicine.

Pseudo-Continuous Arterial Spin Labelling MRI for Non-Invasive, Whole-Brain, Serial Quantification of Cerebral Blood Flow Following Aneurysmal Subarachnoid Haemorrhage

P. Jezzard, M. Chappell, K. Pattinson, 2013, Translational Stroke Research.

Quantification of CBF Changes in the Human Brain During Moderate Exercise With pCASL

N. Shah, T. Okell, E. Maggioni, 2013 .

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

G. Douaud, A. Winkler, R. Wise, 2017, Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism.

Optimization of 4D Combined Angiography and Perfusion using Radial Imaging and Arterial Spin Labeling

T. Okell, M. Chiew, 2022, bioRxiv.

ASL-BIDS, the brain imaging data structure extension for arterial spin labeling

Joseph G. Woods, David L. Thomas, J. Detre, 2021, Scientific data.

Recent Technical Developments in ASL: A Review of the State of the Art

Joseph G. Woods, Moss Y. Zhao, David L. Thomas, 2022, Magnetic resonance in medicine.

Reliability of multi-site UK Biobank MRI brain phenotypes for the assessment of neuropsychiatric complications of SARS-CoV-2 infection: The COVID-CNS travelling heads study

Thomas E. Nichols, E. Bullmore, G. Breen, 2022, PloS one.

1 1 2 Multimodal population brain imaging 3 in the UK Biobank prospective epidemiological study 4 5

P. Matthews, R. Collins, M. Jenkinson, 2017 .

REPORT Identifying the ischaemic penumbra using pH-weighted magnetic resonance imaging

P. Jezzard, T. Okell, N. Blockley, 2014 .

Corrigendum: The dorsal posterior insula subserves a fundamental role in human pain

J. Farrar, I. Tracey, T. Okell, 2015, Nature Neuroscience.

Time‐encoded pseudo‐continuous arterial spin labeling: Increasing SNR in ASL dynamic angiography

Joseph G. Woods, M. Chappell, T. Okell, 2022, Magnetic resonance in medicine.

The effects of altered intrathoracic pressure on resting cerebral blood flow and its response to visual stimulation

Richard G. Wise, Kevin Murphy, Thomas W. Okell, 2013, NeuroImage.

Designing and comparing optimized pseudo-continuous Arterial Spin Labeling protocols for measurement of cerebral blood flow

Michael A. Chappell, Thomas W. Okell, Joseph G. Woods, 2020, NeuroImage.

Single-dose effects of Citalopram on neural responses to affective stimuli in borderline personality disorder: A randomized clinical trial.

C. Beckmann, M. Mennes, S. Grimm, 2021, Biological psychiatry. Cognitive neuroscience and neuroimaging.

Quantification of Serial Cerebral Blood Flow in Acute Stroke Using Arterial Spin Labeling

Michael A. Chappell, Peter Jezzard, Gary A. Ford, 2016, Stroke.

Medium-term effects of SARS-CoV-2 infection on multiple vital organs, exercise capacity, cognition, quality of life and mental health, post-hospital discharge

M. Jenkinson, P. Klenerman, N. Filippini, 2020, EClinicalMedicine.

Quantitative measurement of cerebral physiology using respiratory-calibrated MRI

P. Jezzard, D. P. Bulte, M. Kelly, 2012, NeuroImage.

Quantitative chemical exchange saturation transfer imaging of nuclear overhauser effects in acute ischemic stroke

P. Jezzard, M. Chappell, T. Okell, 2022, Magnetic resonance in medicine.

Quantitative CEST imaging of amide proton transfer in acute ischaemic stroke

P. Jezzard, M. Chappell, T. Okell, 2019, NeuroImage: Clinical.

Association of Midlife Cardiovascular Risk Profiles With Cerebral Perfusion at Older Ages

Klaus P. Ebmeier, S. Suri, M. Kivimäki, 2019, JAMA network open.

Identifying the ischaemic penumbra using pH-weighted magnetic resonance imaging

Peter Jezzard, Thomas W. Okell, Nicholas Blockley, 2014, Brain : a journal of neurology.

Comparing different analysis methods for quantifying the MRI amide proton transfer (APT) effect in hyperacute stroke patients

P. Jezzard, Thomas W. Okell, J. Kennedy, 2014, NMR in biomedicine.

The dorsal posterior insula is not an island in pain but subserves a fundamental role - Response to: “Evidence against pain specificity in the dorsal posterior insula” by Davis et al.

Thomas W Okell, Irene Tracey, Melvin Mezue, 2015, F1000Research.

A systematic study of the sensitivity of partial volume correction methods for the quantification of perfusion from pseudo-continuous arterial spin labeling MRI

Irene Tracey, Michael A. Chappell, Thomas W. Okell, 2017, NeuroImage.

Association of Cardiovascular Risk Factors With MRI Indices of Cerebrovascular Structure and Function and White Matter Hyperintensities in Young Adults

Ludovica Griffanti, Christina Malamateniou, Mark Jenkinson, 2018, JAMA.

Aerobic exercise increases brain vessel lumen size and blood flow in young adults with elevated blood pressure. Secondary analysis of the TEPHRA randomized clinical trial

H. Dawes, T. Okell, P. Leeson, 2023, NeuroImage: Clinical.

ICA-based denoising for ASL perfusion imaging

Ludovica Griffanti, Michael A. Chappell, Thomas W. Okell, 2019, NeuroImage.

Partial volume correction for quantitative CEST imaging of acute ischemic stroke

P. Jezzard, M. Chappell, T. Okell, 2019, Magnetic resonance in medicine.

Steady-state MRI: methods for neuroimaging

Karla L. Miller, Thomas W. Okell, Nikola Stikov, 2011 .

Measurement of collateral perfusion in acute stroke: a vessel-encoded arterial spin labeling study

P. Jezzard, M. Chappell, T. Okell, 2019, Scientific Reports.

Prospects for investigating brain oxygenation in acute stroke: Experience with a non‐contrast quantitative BOLD based approach

Thomas W Okell, T. Okell, N. Blockley, 2019, Human brain mapping.

Vessel‐encoded dynamic magnetic resonance angiography using arterial spin labeling

Matthias Günther, Peter Jezzard, Michael A Chappell, 2010, Magnetic resonance in medicine.

Structural Connectivity Variances Underlie Functional and Behavioral Changes During Pain Relief Induced by Neuromodulation

Nicola Filippini, Thomas W. Okell, Charlotte J. Stagg, 2017, Scientific Reports.

Study Protocol: The Heart and Brain Study

S. W. Rieger, Klaus P. Ebmeier, Sebastian W. Rieger, 2021, Frontiers in Physiology.

Acceleration of vessel‐selective dynamic MR Angiography by pseudocontinuous arterial spin labeling in combination with Acquisition of ConTRol and labEled images in the Same Shot (ACTRESS)

Yuriko Suzuki, Thomas W Okell, Noriyuki Fujima, 2018, Magnetic resonance in medicine.

Optimization of 4D vessel‐selective arterial spin labeling angiography using balanced steady‐state free precession and vessel‐encoding

Karla L Miller, Peter Schmitt, Peter Jezzard, 2016, NMR in biomedicine.

The advantages of radial trajectories for vessel-selective dynamic angiography with arterial spin labeling

Peter Jezzard, Eleanor S. K. Berry, Thomas W. Okell, 2019, bioRxiv.

Improving PCASL at ultra‐high field using a VERSE‐guided parallel transmission strategy

Peter Jezzard, Thomas W Okell, William T Clarke, 2020, Magnetic resonance in medicine.

A kinetic model for vessel‐encoded dynamic angiography with arterial spin labeling

Peter Jezzard, P. Jezzard, M. Chappell, 2012, Magnetic resonance in medicine.

Vessel‐encoded dynamic magnetic resonance angiography using arterial spin labeling

Matthias Günther, Peter Jezzard, Michael A Chappell, 2010, Magnetic resonance in medicine.

Calibration of arterial spin labeling data—potential pitfalls in post‐processing

Michael A Chappell, Thomas W Okell, Joana Pinto, 2019, Magnetic resonance in medicine.

A general framework for optimizing arterial spin labeling MRI experiments

Michael A. Chappell, Thomas W. Okell, Joseph G. Woods, 2018, Magnetic resonance in medicine.

Using arterial spin labelling to investigate spontaneous and evoked ongoing musculoskeletal pain

Matthew A. Webster, M. Jenkinson, A. Carr, 2017, bioRxiv.

Comparison of cerebral blood flow acquired by simultaneous [15O]water positron emission tomography and arterial spin labeling magnetic resonance imaging

Lutz Tellmann, Hans Herzog, Elena Rota Kops, 2014, Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism.

Introduction to Perfusion Quantification using Arterial Spin Labelling

Michael A. Chappell, Thomas W. Okell, Bradley J. MacIntosh, 2018 .

Adapting the UK Biobank Brain Imaging Protocol and Analysis Pipeline for the C-MORE Multi-Organ Study of COVID-19 Survivors

N. Filippini, P. Jezzard, K. Miller, 2021, Frontiers in Neurology.

Dual-calibrated fMRI measurement of absolute cerebral metabolic rate of oxygen consumption and effective oxygen diffusivity

Richard G. Wise, Kevin Murphy, Thomas W. Okell, 2019, NeuroImage.

Time‐encoded golden angle radial arterial spin labeling: Simultaneous acquisition of angiography and perfusion data

Merlijn C E van der Plas, M. V. van Osch, T. Okell, 2021, NMR in biomedicine.

Visualizing artery‐specific blood flow patterns above the circle of Willis with vessel‐encoded arterial spin labeling

Michael A. Chappell, Peter Jezzard, Thomas W. Okell, 2018, Magnetic resonance in medicine.

A fast analysis method for non-invasive imaging of blood flow in individual cerebral arteries using vessel-encoded arterial spin labelling angiography

Mark W. Woolrich, Stephen J. Payne, Michael A. Chappell, 2012, Medical Image Anal..

A general framework for the analysis of vessel encoded arterial spin labeling for vascular territory mapping

Peter Jezzard, Michael A Chappell, Thomas W Okell, 2010, Magnetic resonance in medicine.

Real-time cardiac synchronization with fixed volume frame rate for reducing physiological instabilities in 3D FMRI

Karla L. Miller, Thomas W. Okell, Rob H. N. Tijssen, 2011, NeuroImage.

The dorsal posterior insula is not an island in pain but subserves a fundamental role - Response to: “Evidence against pain specificity in the dorsal posterior insula” by Davis et al.

J. Farrar, I. Tracey, T. Okell, 2015, F1000Research.

Pseudo-Continuous Arterial Spin Labelling MRI for Non-Invasive, Whole-Brain, Serial Quantification of Cerebral Blood Flow Following Aneurysmal Subarachnoid Haemorrhage

P. Jezzard, M. Chappell, K. Pattinson, 2013, Translational Stroke Research.

The Past, Present, and Future of the Brain Imaging Data Structure (BIDS)

Thomas E. Nichols, Krzysztof J. Gorgolewski, Adam G. Thomas, 2023, Imaging Neuroscience.

A Frequency-Domain Machine Learning Method for Dual-Calibrated fMRI Mapping of Oxygen Extraction Fraction (OEF) and Cerebral Metabolic Rate of Oxygen Consumption (CMRO2)

Thomas W. Okell, Fabrizio Fasano, Valentina Tomassini, 2019, bioRxiv.

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

G. Douaud, A. Winkler, R. Wise, 2017, Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism.

Association of Cardiovascular Risk Factors With MRI Indices of Cerebrovascular Structure and Function and White Matter Hyperintensities in Young Adults

E. Frangou, M. Jenkinson, H. Dawes, 2018, JAMA.

An Optimized Encoding Scheme for Planning Vessel‐Encoded Pseudocontinuous Arterial Spin Labeling

Peter Jezzard, Thomas W Okell, P. Jezzard, 2015, Magnetic resonance in medicine.

Time-encoded pseudo-continuous arterial spin labeling: increasing SNR in ASL angiography

Joseph G. Woods, M. Chappell, T. Okell, 2022, 2204.00664.

ASL-BIDS, the brain imaging data structure extension for arterial spin labeling

Joseph G. Woods, David L. Thomas, J. Detre, 2021, Scientific Data.

Multimodal population brain imaging in the UK Biobank prospective epidemiological study

P. Matthews, R. Collins, M. Jenkinson, 2016, Nature Neuroscience.

Highly accelerated vessel‐selective arterial spin labeling angiography using sparsity and smoothness constraints

Mark Chiew, Thomas W. Okell, S. Sophie Schauman, 2019, bioRxiv.

Validation of planning‐free vessel‐encoded pseudo‐continuous arterial spin labeling MR imaging as territorial‐ASL strategy by comparison to super‐selective p‐CASL MRI

Michael Helle, Jeroen Hendrikse, Nolan S. Hartkamp, 2014, Magnetic resonance in medicine.

A theoretical framework for quantifying blood volume flow rate from dynamic angiographic data and application to vessel-encoded arterial spin labeling MRI☆

Michael A. Chappell, Peter Jezzard, Thomas W. Okell, 2013, Medical Image Anal..

Vessel-Encoded Arterial Spin Labeling Angiography

P. Jezzard, K. Miller, M. Chappell, 2010 .

Off-resonance correction for pseudo-continuous arterial spin labeling using the optimized encoding scheme

P. Jezzard, T. Okell, Eleanor S. K. Berry, 2019, NeuroImage.

Recommendations for quantitative cerebral perfusion MRI using multi-timepoint arterial spin labeling: Acquisition, quantification, and clinical applications.

Meher R. Juttukonda, Moss Y. Zhao, M. V. van Osch, 2024, Magnetic Resonance in Medicine.

A framework for motion correction of background suppressed arterial spin labeling perfusion images acquired with simultaneous multi‐slice EPI

Yuriko Suzuki, Michael A Chappell, Thomas W Okell, 2018, Magnetic resonance in medicine.

Prospective motion correction and selective reacquisition using volumetric navigators for vessel‐encoded arterial spin labeling dynamic angiography

Peter Jezzard, Robert Frost, P. Jezzard, 2016, Magnetic resonance in medicine.

Erratum to “Visual activation of extra-striate cortex in the absence of V1 activation” [Neuropsychologia 48/14 (2010) 4148–4154]

A. Cowey, H. Bridge, C. Kennard, 2011, Neuropsychologia.

Relationship between haemodynamic impairment and collateral blood flow in carotid artery disease

M. Chappell, T. Okell, E. Petersen, 2017, Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism.

Optimization and Reliability of Multiple Postlabeling Delay Pseudo-Continuous Arterial Spin Labeling during Rest and Stimulus-Induced Functional Task Activation

I. Tracey, M. Chappell, T. Okell, 2014, Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism.