Leigh Johnston

Predicting individual improvement in schizophrenia symptom severity at 1-year follow-up: Comparison of connectomic, structural, and clinical predictors

Akhil Kottaram, Leigh A Johnston, Ye Tian, Eleni P Ganella, Liliana Laskaris, Luca Cocchi, Patrick McGorry, Christos Pantelis, Ramamohanarao Kotagiri, Vanessa Cropley, Andrew Zalesky

Journal article  |  2020  |  Human Brain Mapping

In a machine learning setting, this study aims to compare the prognostic utility of connectomic, brain structural, and clinical/de..

Microstructural correlates of 23Na relaxation in human brain at 7 Tesla.

Scott C Kolbe, Warda Syeda, Yasmin Blunck, Rebecca Glarin, Meng Law, Leigh A Johnston, Jon O Cleary

Journal article  |  2020  |  Neuroimage

23Na provides the second strongest MR-observable signal in biological tissue and exhibits bi-exponential T2∗ relaxation in micro-e..

Compressed sensing effects on quantitative analysis of undersampled human brain sodium MRI

Yasmin Blunck, Scott C Kolbe, Bradford A Moffat, Roger J Ordidge, Jon O Cleary, Leigh A Johnston

Journal article  |  2020  |  Magnetic Resonance in Medicine

Purpose The clinical application of sodium MRI is hampered due to relatively low image quality and associated long acquisition tim..

Spin Lock Adiabatic Correction (SLAC) for B-1-insensitive pulse design at 7T

Edward M Green, Yasmin Blunck, Bahman Tahayori, Peter M Farrell, James C Korte, Leigh A Johnston

Journal article  |  2019  |  Journal of Magnetic Resonance

A new framework for B1 insensitive adiabatic pulse design is proposed, denoted Spin Lock Adiabatic Correction (SLAC), which counte..

The Subplate: A Potential Driver of Cortical Folding?

Shreya Rana, Rosita Shishegar, Sebastian Quezada, Leigh Johnston, David W Walker, Mary Tolcos

Journal article  |  2019  |  Cerebral Cortex

In many species of Mammalia, the surface of the brain develops from a smooth structure to one with many fissures and folds, allowi..

Repeated mild traumatic brain injuries induce persistent changes in plasma protein and magnetic resonance imaging biomarkers in the rat

David K Wright, Rhys D Brady, Alaa Kamnaksh, Jack Trezise, Mujun Sun, Stuart J McDonald, Richelle Mychasiuk, Scott C Kolbe, Meng Law, Leigh A Johnston, Terence J O'Brien, Denes V Agoston, Sandy R Shultz

Journal article  |  2019  |  Scientific Reports

A single mild traumatic brain injury (mTBI) typically causes only transient symptoms, but repeated mTBI (RmTBI) is associated with..

Evolution of brain volume and hippocampal neurogenesis over 12 months after focal ischemia in adult rats

Charlotte Ermine, Warda Syeda, David Wright, Jessica Kauhausen, Stefano Frausin, Vanessa Brait, Katrina O'Brien, Jessica Nithianantharajah, Emilio Werden, Leigh Johnston, Amy Brodtmann, Lachlan Thompson

Conference Proceedings  |  2019  |  INTERNATIONAL JOURNAL OF STROKE

A continuum of T-2(*) components: Flexible fast fraction mapping in sodium MRI

Warda Syeda, Yasmin Blunck, Scott Kolbe, Jon O Cleary, Leigh A Johnston

Journal article  |  2019  |  Magnetic Resonance in Medicine

PURPOSE: Parameter mapping in sodium MRI data is challenging due to inherently low SNR and spatial resolution, prompting the need ..

Brain network dynamics in schizophrenia: Reduced dynamism of the default mode network

Akhil Kottaram, Leigh A Johnston, Luca Cocchi, Eleni P Ganella, Ian Everall, Christos Pantelis, Ramamohanarao Kotagiri, Andrew Zalesky

Journal article  |  2019  |  Human Brain Mapping

Validation of 'Somnivore', a Machine Learning Algorithm for Automated Scoring and Analysis of Polysomnography Data

Giancarlo Allocca, Sherie Ma, Davide Martelli, Matteo Cerri, Flavia Del Vecchio, Stefano Bastianini, Giovanna Zoccoli, Roberto Amici, Stephen R Morairty, Anne E Aulsebrook, Shaun Blackburn, John A Lesku, Niels C Rattenborg, Alexei L Vyssotski, Emma Wams, Kate Porcherer, Katharina Wulff, Russell Foster, Julia KM Chan, Christian L Nicholas, et al.

Journal article  |  2019  |  Frontiers in Neuroscience

Manual scoring of polysomnography data is labor-intensive and time-consuming, and most existing software does not account for subj..

The epilepsy bioinformatics study for anti-epileptogenic therapy (EpiBioS4Rx) clinical biomarker: Study design and protocol

Paul M Vespa, Vikesh Shrestha, Nicholas Abend, Denes Agoston, Alicia Au, Michael J Bell, Thomas P Bleck, Manuel Buitrago Blanco, Jan Claassen, Ramon Diaz-Arrastia, Dominique Duncan, Ben Ellingson, Brandon Foreman, Emily J Gilmore, Lawrence Hirsch, Martin Hunn, Alaa Kamnaksh, David McArthur, Andrew Morokoff, Terrence O'Brien, et al.

Journal article  |  2019  |  Neurobiology of Disease

Early seizures and temporal lobe trauma predict post-traumatic epilepsy: A longitudinal study

Meral A Tubiv, Evan Lutkenhof, Manuel Buitrago Blanco, David McArthur, Pablo Villablanca, Benjamin Ellingson, Ramon Diaz-Arrastia, Paul Van Ness, Courtney Real, Vikesh Shrestha, Jerome Engel, Paul M Vespa, Denes Agoston, Alicia Au, Michael J Bell, Tom Bleck, Craig Branch, Manuel Buitrago Blanco, Ross Bullock, Brian T Burrows, et al.

Journal article  |  2019  |  Neurobiology of Disease

Imaging biomarkers of epileptogenecity after traumatic brain injury - Preclinical frontiers

Riikka Immonen, Neil G Harris, David Wright, Leigh Johnston, Eppu Manninen, Gregory Smith, Afshin Paydar, Craig Branch, Olli Grohn

Journal article  |  2019  |  Neurobiology of Disease

Harmonization of pipeline for preclinical multicenter MRI biomarker discovery in a rat model of post-traumatic epileptogenesis

Riikka Immonen, Gregory Smith, Rhys D Brady, David Wright, Leigh Johnston, Neil G Harris, Eppu Manninen, Raimo Salo, Craig Branch, Dominique Duncan, Ryan Cabeen, Xavier Ekolle Ndode-Ekane, Cesar Santana Gomez, Pablo M Casillas-Espinosa, Idrish Ali, Sandy R Shultz, Pedro Andrade, Noora Puhakka, Richard J Staba, Terence J O'Brien, et al.

Journal article  |  2019  |  Epilepsy Research

Zero-gradient-excitation ramped hybrid encoding (zG(RF)-RHE) sodium MRI

Yasmin Blunck, Bradford A Moffat, Scott C Kolbe, Roger J Ordidge, Jon O Cleary, Leigh A Johnston

Journal article  |  2019  |  Magnetic Resonance in Medicine

Spatio-temporal dynamics of resting-state brain networks improve single-subject prediction of schizophrenia diagnosis

Akhil Kottaram, Leigh Johnston, Eleni Ganella, Christos Pantelis, Ramamohanarao Kotagiri, Andrew Zalesky

Journal article  |  2018  |  Human Brain Mapping

3D-multi-echo radial imaging of Na-23 (3D-MERINA) for time-efficient multi-parameter tissue compartment mapping

Yasmin Blunck, Sonal Josan, Syeda Warda Taqdees, Bradford A Moffat, Roger J Ordidge, Jon O Cleary, Leigh A Johnston

Journal article  |  2018  |  Magnetic Resonance in Medicine

"SOMNIVORE", A USER-FRIENDLY PLATFORM FOR AUTOMATED SLEEP SCORING OF ANIMAL AND HUMAN POLYSOMNOGRAPHY DATA

G Allocca, D Freestone, L Johnston, A Gundlach

Conference Proceedings  |  2017  |  Sleep Medicine

Traumatic Brain Injury Results in Cellular, Structural and Functional Changes Resembling Motor Neuron Disease

David K Wright, Shijie Liu, Chris van der Poel, Stuart J McDonald, Rhys D Brady, Lily Taylor, Li Yang, Andrew J Gardner, Roger Ordidge, Terence J O'Brien, Leigh A Johnston, Sandy R Shultz

Journal article  |  2017  |  Cerebral Cortex

Differences in white matter structure between seizure prone (FAST) and seizure resistant (SLOW) rat strains

Pragati Sharma, David K Wright, Leigh A Johnston, Kim L Powell, Mary E Wlodek, Sandy R Shultz, Terence J O'Brien, Krista L Gilby

Journal article  |  2017  |  Neurobiology of Disease

Changes in Apparent Fiber Density and Track-Weighted Imaging Metrics in White Matter following Experimental Traumatic Brain Injury

David K Wright, Leigh A Johnston, Jeff Kershaw, Roger Ordidge, Terence J O'Brien, Sandy R Shultz

Journal article  |  2017  |  Journal of Neurotrauma

NMR spectroscopy using Rabi modulated continuous wave excitation

James C Korte, Kelvin J Layton, Bahman Tahayori, Peter M Farrell, Stephen M Moore, Leigh A Johnston

Journal article  |  2017  |  Biomedical Signal Processing and Control

ANALYSIS OF ADC MODEL ROBUSTNESS IN DIFFUSION-WEIGHTED MRI

Syeda Warda Taqdees, Amanda Ng, David K Wright, Mary Tolcos, Leigh A Johnston

Conference Proceedings  |  2017  |  2017 IEEE 14th International Symposium on Biomedical Imaging (ISBI 2017)

AUTOMATIC SEGMENTATION OF FETAL BRAIN USING DIFFUSION-WEIGHTED IMAGING CUES

Rosita Shishegar, Anand A Joshi, Mary Tolcos, David W Walker, Leigh A Johnston

Conference Proceedings  |  2017  |  2017 IEEE 14th International Symposium on Biomedical Imaging (ISBI 2017)

Neuroanatomical differences in FAST and SLOW rat strains with differential vulnerability to kindling and behavioral comorbidities

Pragati Sharma, Stefanie Dedeurwaerdere, Michael AD Vandenberg, Ke Fang, Leigh A Johnston, Sandy R Shultz, Terence J O'Brien, Krista L Gilby

Journal article  |  2016  |  Epilepsy & Behavior

Sodium selenate retards epileptogenesis in acquired epilepsy models reversing changes in protein phosphatase 2A and hyperphosphorylated tau

Shi-jie Liu, Ping Zheng, David K Wright, Gabi Dezsi, Emma Braine, Nguyen Thanh, Niall M Corcoran, Leigh A Johnston, Christopher M Hovens, Jamie N Mayo, Matthew Hudson, Sandy R Shultz, Nigel C Jones, Terence J O'Brien

Journal article  |  2016  |  Brain

Behavioral, blood, and magnetic resonance imaging biomarkers of experimental mild traumatic brain injury

David K Wright, Jack Trezise, Alaa Kamnaksh, Ramsey Bekdash, Leigh A Johnston, Roger Ordidge, Bridgette D Semple, Andrew J Gardner, Peter Stanwell, Terence J O'Brien, Denes V Agoston, Sandy R Shultz

Journal article  |  2016  |  SCIENTIFIC REPORTS

Improving the time efficiency of the Fourier synthesis method for slice selection in magnetic resonance imaging

B Tahayori, N Khaneja, LA Johnston, PM Farrell, IMY Mareels

Journal article  |  2016  |  Physica Medica

Abstract The design of slice selective pulses for magnetic resonance imaging can be cast as an optimal control problem. The Fourie..

Sulcal curve extraction using Laplace Beltrami eigenfunction level sets

Rosita Shishegar, Mary Tolcos, David W Walker, Leigh A Johnston

Conference Proceedings  |  2016  |  2016 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)

Video Imaging and Spatiotemporal Maps to Analyze Gastrointestinal Motility in Mice

EL Hill-Yardin, undefined Swaminathan M, undefined Ellis M, undefined Zygorodimos M, undefined Johnston LA, undefined Gwynne RM, undefined Bornstein JC

Journal article  |  2016  |  Journal of Visualized Experiments

Ablation of Type-1 IFN Signaling in Hematopoietic Cells Confers Protection Following Traumatic Brain Injury

Ila P Karve, Moses Zhang, Mark Habgood, Tony Frugier, Kate M Brody, Maithili Sashindranath, C Joakim Ek, Stephane Chappaz, Ben T Kile, David Wright, Hong Wang, Leigh Johnston, Maria Daglas, Robert C Ates, Robert L Medcalf, Juliet M Taylor, Peter J Crack

Journal article  |  2016  |  ENEURO

Fourier Tract Sampling (FouTS): A framework for improved inference of white matter tracts from diffusion MRI by explicitly modelling tract volume

Thomas G Close, Jacques-Donald Tournier, Leigh A Johnston, Fernando Calamante, Iven Mareels, Alan Connelly

Journal article  |  2015  |  NEUROIMAGE

Solving the Bloch Equation With Periodic Excitation Using Harmonic Balancing: Application to Rabi Modulated Excitation

B Tahayori, LA Johnston, KJ Layton, PM Farrell, IMY Mareels

Journal article  |  2015  |  IEEE Transactions on Medical Imaging

Sodium selenate reduces hyperphosphorylated tau and improves outcomes after traumatic brain injury

Sandy R Shultz, David K Wright, Ping Zheng, Ryan Stuchbery, Shi-Jie Liu, Maithili Sashindranath, Robert L Medcalf, Leigh A Johnston, Christopher M Hovens, Nigel C Jones, Terence J O'Brien

Journal article  |  2015  |  Brain

Preservation of Vision by the Pulvinar following Early-Life Primary Visual Cortex Lesions

Claire E Warner, William C Kwan, David Wright, Leigh A Johnston, Gary F Egan, James A Bourne

Journal article  |  2015  |  Current Biology

A Comprehensive Atlas of the Adult Mouse Penis

A PASK, TR Phillips, DK Wright, PE Gradie, LA Johnston

Journal article  |  2015  |  SEXUAL DEVELOPMENT

Mice are routinely used to study the development of the external genitalia and, in particular, the process of male urethral closur..

Limitations of two-component diffusion models for axon diameter density estimation

SW Taqdees, SM Moore, DK Wright, M Tolcos, LA Johnston

Conference Proceedings  |  2015  |  2015 IEEE 12th International Symposium on Biomedical Imaging (ISBI)

Quantifying gyrification using Laplace Beltrami eigenfunction level-sets

R Shishegar, JH Manton, DW Walker, JM Britto, LA Johnston

Conference Proceedings  |  2015  |  2015 IEEE 12th International Symposium on Biomedical Imaging (ISBI)

© 2015 IEEE. Cortical surface is folded into gyri and sulci in the brains of higher mammals. Gyrification indices (GI) are widely ..

Granulocyte-Macrophage Colony-Stimulating Factor Is Neuroprotective in Experimental Traumatic Brain Injury

Sandy R Shultz, Xin L Tan, David K Wright, Shijie J Liu, Bridgette D Semple, Leigh Johnston, Nigel C Jones, Andrew D Cook, John A Hamilton, Terence J O'Brien

Journal article  |  2014  |  Journal of Neurotrauma

Rabi resonance in spin systems: Theory and experiment

Kelvin J Layton, Bahman Tahayori, Iyen MY Mareels, Peter M Farrell, Leigh A Johnston

Journal article  |  2014  |  Journal of Magnetic Resonance

Anti-lysophosphatidic acid antibodies improve traumatic brain injury outcomes

Peter J Crack, Moses Zhang, Maria Cristina Morganti-Kossmann, Andrew J Morris, Jonathan M Wojciak, Jonathan K Fleming, Ila Karve, David Wright, Maithili Sashindranath, Yona Goldshmit, Alison Conquest, Maria Daglas, Leigh A Johnston, Robert L Medcalf, Roger A Sabbadini, Alice Pebay

Journal article  |  2014  |  JOURNAL OF NEUROINFLAMMATION

A method for assessing nonlinear growth in the fetal cortex

R Shishegar, JM Britto, LA Johnston

Conference Proceedings  |  2014  |  2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society

A review of β-amyloid neuroimaging in Alzheimer's disease

PA Adlard, BA Tran, DI Finkelstein, PM Desmond, LA Johnston, AI Bush, GF Egan

Journal article  |  2014  |  Frontiers in Neuroscience

Alzheimer's disease (AD) is the most common cause of dementia worldwide. As advancing age is the greatest risk factor for developi..

Consistent hemodynamic response estimation function in fMRI using sparse prior information

undefined Seghouane, L JOHNSTON

Conference Proceedings  |  2014  |  2014 IEEE 11th International Symposium on Biomedical Imaging (ISBI)

Extending Communication for Patients with Disorders of Consciousness

Xingwen Liang, Levin Kuhlmann, Leigh A Johnston, David B Grayden, Simon Vogrin, Rosemary Crossley, Karen Fuller, Mark Lourensz, Mark J Cook

Journal article  |  2014  |  Journal of Neuroimaging

3D model-based approach to identification of laminar structures of the cerebral cortex: Application to Brodmann areas 17 and 18

C Adamson, L Johnston, I Mareels, A Toga, X Huang, G Egan

Journal article  |  2013  |  Biomedical Signal Processing and Control

The equivalence of linear Gaussian connectivity techniques

Catherine E Davey, David B Grayden, Maria Gavrilescu, Gary F Egan, Leigh A Johnston

Journal article  |  2013  |  Human Brain Mapping

Modelling and Estimation of Multicomponent T-2 Distributions

Kelvin J Layton, Mark Morelande, David Wright, Peter M Farrell, Bill Moran, Leigh A Johnston

Journal article  |  2013  |  IEEE TRANSACTIONS ON MEDICAL IMAGING

Automated differentiation of pre-diagnosis Huntington's disease from healthy control individuals based on quadratic discriminant analysis of the basal ganglia: The IMAGE-HD study

N Georgiou-Karistianis, MA Gray, JF Dominguez D, AR Dymowski, I Bohanna, LA Johnston, A Churchyard, P Chua, JC Stout, GF Egan

Journal article  |  2013  |  NEUROBIOLOGY OF DISEASE

Filtering induces correlation in fMRI resting state data

Catherine E Davey, David B Grayden, Gary F Egan, Leigh A Johnston

Journal article  |  2013  |  NEUROIMAGE

Diffusion tensor imaging of the optic radiations after optic neuritis

Scott Kolbe, Clare Bajraszewski, Caron Chapman, Nguyen Tan, Peter Mitchell, Mark Paine, Helmut Butzkueven, Leigh Johnston, Trevor Kilpatrick, Gary Egan

Journal article  |  2012  |  Human Brain Mapping

Performance Analysis for Magnetic Resonance Imaging With Nonlinear Encoding Fields

Kelvin J Layton, Mark Morelande, Peter M Farrell, Bill Moran, Leigh A Johnston

Journal article  |  2012  |  IEEE TRANSACTIONS ON MEDICAL IMAGING

ESTIMATION OF RELAXATION TIME DISTRIBUTIONS IN MAGNETIC RESONANCE IMAGING

Kelvin J Layton, Leigh A Johnston, Peter M Farrell, Bill Moran, Mark Morelande

Conference Proceedings  |  2012  |  2012 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)

Venous vessel boundary delineation at high field using sigmoid-SWI.

A Ng, GF Egan, ZH Cho, LA Johnston

Conference Proceedings  |  2011  |  Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference

Diffusion Tensor Imaging in Huntington's disease reveals distinct patterns of white matter degeneration associated with motor and cognitive deficits

India Bohanna, Nellie Georgiou-Karistianis, Anusha Sritharan, Hamed Asadi, Leigh Johnston, Andrew Churchyard, Gary Egan

Journal article  |  2011  |  Brain Imaging and Behaviour

Spatially Dependent Filtering for Removing Phase Distortions at the Cortical Surface

Amanda Ng, Leigh Johnston, Zhaolin Chen, Zang-Hee Cho, Jingxin Zhang, Gary Egan

Journal article  |  2011  |  Magnetic Resonance in Medicine

The impact of Alzheimer's disease on the functional connectivity between brain regions underlying pain perception

Leonie J Cole, Maria Gavrilescu, Leigh A Johnston, Stephen J Gibson, Michael J Farrell, Gary F Egan

Journal article  |  2011  |  EUROPEAN JOURNAL OF PAIN

Altered Speeds and Trajectories of Neurons Migrating in the Ventricular and Subventricular Zones of the Reeler Neocortex

Joanne M Britto, Karen J Tait, Leigh A Johnston, Vicki E Hammond, Michael Kalloniatis, Seong-Seng Tan

Journal article  |  2011  |  Cerebral Cortex

Characterization of the corpus callosum in very preterm and full-term infants utilizing MRI

Deanne K Thompson, Terrie E Inder, Nathan Faggian, Leigh Johnston, Simon K Warfield, Peter J Anderson, Lex W Doyle, Gary F Egan

Journal article  |  2011  |  Neuroimage

Bayesian model evidence for order selection and correlation testing

Leigh A Johnston, Iven MY Mareels, Gary F Egan

Conference Proceedings  |  2011  |  Proceedings of 33rd Annual International IEEE EMBS Conference

Venous Vessel Boundary Delineation at High Field Using Sigmoid-SWI

Amanda Ng, Gary F Egan, Zang-Hee Cho, Leigh A Johnston

Conference Proceedings  |  2011  |  Proceedings of 33rd Annual International IEEE EMBS Conference

Adapting magnetic resonance imaging performance using nonlinear encoding fields

Kelvin J Layton, Mark Morelande, Peter M Farrell, Bill Moran, Leigh A Johnston

Conference Proceedings  |  2011  |  Proceedings the 33rd Annual International IEEE EMBC Conference

A Stochastic Linear Model for fMRI Activation Analyses

Leigh A Johnston, Maria Gavrilescu, Gary F Egan

Conference Proceedings  |  2011  |  Lecture Notes in Computer Science

The Bloch equation revisited through averaging under adiabatic passages

B Tahayori, L Johnston, IMY Mareels, PM Farrell

Conference Proceedings  |  2011  |  Proceedings of the 18th IFAC World Congress

A longitudinal diffusion tensor imaging study in symptomatic Huntington's disease

Anusha Sritharan, Gary F Egan, Leigh Johnston, Malcolm Horne, John L Bradshaw, India Bohanna, Hamed Asadi, Ross Cunnington, Andrew J Churchyard, Phyllis Chua, Maree Farrow, Nellie Georgiou-Karistianis

Journal article  |  2010  |  Journal of Neurology, Neurosurgery and Psychiatry

IIR GRAPPA for Parallel MR Image Reconstruction

Zhaolin Chen, Jingxin Zhang, Ran Yang, Peter Kellman, Leigh A Johnston, Gary F Egan

Journal article  |  2010  |  Magnetic Resonance in Medicine

An optimised framework for reconstructing and processing MR phase images

Zhaolin Chen, Leigh A Johnston, Dae Hyuk Kwon, Se Hong Oh, Zang-Hee Cho, Gary F Egan

Journal article  |  2010  |  Neuroimage

IMPROVED QUANTIFICATION OF MRI RELAXATION RATES USING BAYESIAN ESTIMATION

Kelvin Layton, Mark Morelande, Leigh A Johnston, Peter M Farrell, Bill Moran

Conference Proceedings  |  2010  |  Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing 2010

Biomechanisms for modelling cerebral cortical folding

Guangqiang Geng, Leigh A Johnston, Edwin Yan, Joanne M Britto, David W Smith, David W Walker, Gary F Egan

Journal article  |  2009  |  Medical Image Analysis

Revisiting excitation pattern design for magnetic resonance imaging through optimisation of the signal contrast efficiency

B Tahayori, LA Johnston, IMY Mareels, PM Farrell

Journal article  |  2009  |  Biomedical Signal Processing and Control

A software tool to generate simulated white matter structures for the assessment of fibre-tracking algorithms

Thomas G Close, Jacques-Donald Tournier, Fernando Calamante, Leigh A Johnston, Iven Mareels, Alan Connelly

Journal article  |  2009  |  Neuroimage

The Stochastic Search Dynamics of Interneuron Migration

Joanne M Britto, Leigh A Johnston, Seong-Seng Tans

Journal article  |  2009  |  Biophysical Journal

Novel insight into magnetic resonance through a spherical coordinate framework for the bloch equation

B Tahayori, LA Johnston, IMY Mareels, PM Farrell

Conference Proceedings  |  2009  |  Proceedings of SPIE Progress in Biomedical Optics and Imaging 2009

Optic nerve diffusion changes and atrophy jointly predict visual dysfunction after optic neuritis

Scott Kolbe, Caron Chapman, Thanh Nguyen, Clare Bajraszewski, Leigh Johnston, Michael Kean, Peter Mitchell, Mark Paine, Helmut Butzkueven, Trevor Kilpatrick, Gary Egan

Journal article  |  2009  |  Neuroimage

2D IIR Filter For Parallel Magnetic Resonance Image Reconstruction

Zhaolin Chen, Jingxin Zhang, Ran Yang, Peter Kellman, Leigh A Johnston, Gary F Egan

Conference Proceedings  |  2009  |  7th IEEE International Conference on Control and Automation 2009

Optic nerve diffusion changes and atrophy jointly predict visual dysfunction after optic neuritis

S Kolbe, C Chapman, T Nguyen, C Bajraszewski, LA Johnston, M Klean, P Mitchell, M Paine, H Butzkueven, TJ Kilpatrick, GF Egan

Journal article  |  2009  |  Neuroimage

An informatics approach for the study of neuron migratory dynamics

L JOHNSTON, SS Tan, JM Britto

Conference Proceedings  |  2009  |  Proceedings of 2009 International Symposium on Bioelectronics and Bioinformatics

Challenging the optimality of the pulse excitation in magnetic resonance imaging

B Tahayori, L Johnston, I Mareels, PM Farrell

Conference Proceedings  |  2008  |  Proceedings of the 17th IFAC World Congress 2008

A multistage parallel magnetic resonance image reconstruction method

Z Chen, L Johnston, N Faggian, M Kean, J Zhang, G Egan

Conference Proceedings  |  2008  |  Proceedings - Digital Image Computing: Techniques and Applications, DICTA 2008

A method for shape analysis and segmentation in MRI

N Faggian, Z Chen, L Johnston, O Se-Hong, ZH Cho, G Egan

Conference Proceedings  |  2008  |  Proceedings - Digital Image Computing: Techniques and Applications, DICTA 2008

The power of spectral density analysis for mapping endogenous BOLD signal fluctuations

Eugene P Duff, Leigh A Johnston, Jinhu Xiong, Peter T Fox, Iven Mareels, Gary F Egan

Journal article  |  2008  |  Human Brain Mapping

Nonlinear estimation of the BOLD signal

Leigh A Johnston, Eugene Duff, Iven Mareels, Gary F Egan

Journal article  |  2008  |  Neuroimage

Revisiting the Bloch Equation through Averaging

Bahman Tahayori, Leigh A Johnston, Iven MY Mareels, Peter M Farrell

Conference Proceedings  |  2008  |  Proceedings of the 47th IEEE Conference on Decision and Control 2008

Voxelwise regularisation of high angular resolution diffusion imaging data

Leigh A Johnston, Scott Kolbe, Iven MY Mareels, Gary F Egan

Conference Proceedings  |  2008  |  Proceedings of the 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society: 'Personalized Healthcare through Technology'

Magnetic Resonance Described in the Excitation Dependent Rotating Frame of Reference

Bahman Tahayori, Leigh A Johnston, Iven MY Mareels, Peter M Farrell

Conference Proceedings  |  2008  |  Proceedings of the 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society: 'Personalized Healthcare through Technology'

Modelling cerebral cortical folding

G Geng, L JOHNSTON, E Yan, D Walker, G EGAN

Conference Proceedings  |  2007  |  MICCAI 2007 Workshop Proceedings: Computational Biomechanics for Medicine II

Real-time imaging of migrating cortical interneurons

J Britto, L Johnston, S Tan

Conference Proceedings  |  2006  |  International Journal of Developmental Neuroscience

Opportunistic file transfer over a fading channel: A POMDP search theory formulation with optimal threshold policies

LA Johnston, V Krishnamurthy

Journal article  |  2006  |  IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS

Particle filtering for nonlinear BOLD signal analysis

LA Johnston, E Duff, GF Egan

Journal article  |  2006  |  Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)

Particle filtering for nonlinear BOLD signal analysis

Leigh A Johnston, Eugene Duff, Gary F Egan

Conference Proceedings  |  2006  |  Proceedings of the 9th International Conference on Medical Image Computing and Computer Assisted Intervention

A tracking approach to parcellation of the cerebral cortex

C Adamson, L Johnston, T Inder, S Rees, I Mareels, G Egan

Conference Proceedings  |  2005  |  Proceedings from MICCAI 2005 Conference.

Efficient computation of closed contours using modified baum-welch updating

LA Johnston, JH Elder

Conference Proceedings  |  2004  |  Proceedings of the 2004 Conference on Computer Vision and Pattern Recognition Workshop

Contour grouping with prior models

JH Elder, A Krupnik, LA Johnston

Journal article  |  2003  |  IEEE Transactions on Pattern Analysis and Machine Intelligence

Optimality of threshold transmission policies in Gilbert Elliott fading channels

LA Johnston, V Krishnamurthy

Conference Proceedings  |  2003  |  Frontiers in Telecommunications: 2003 IEEE International Conference on Communications

Performance analysis of a dynamic programming track before detect algorithm

LA Johnston, V Krishnamurthy

Journal article  |  2002  |  IEEE Transactions on Aerospace and Electronic Systems

An improvement to the interacting multiple model (IMM) algorithm

LA Johnston, V Krishnamurthy

Journal article  |  2001  |  IEEE Transactions on Signal Processing

Derivation of a sawtooth iterated extended Kalman smoother via the AECM algorithm

LA Johnston, V Krishnamurthy

Journal article  |  2001  |  IEEE Transactions on Signal Processing

On the formation of extrinsic information in turbo decoding

LA Johnston, V Krishnamurthy, L Davis

Conference Proceedings  |  2001  |  Proceedings of the 2001 IEEE International Symposium on Information Theory

Performance analysis of a track before detect dynamic programming algorithm

LA Johnston, V Krishnamurthy

Conference Proceedings  |  2000  |  2000 IEEE International Conference on Acoustics, Speech, and Signal Processing. Proceedings (Cat. No.00CH37100)

Hidden Markov model algorithms for narrowband interference suppression in CDMA spread spectrum systems

L Johnston, V Krishnamurthy

Journal article  |  1999  |  Signal Processing

Mode-matched filtering via the EM algorithm

LA Johnston, V Krishnamurthy

Conference Proceedings  |  1999  |  Proceedings of the American Control Conference

Finite dimensional smoothers for MAP state estimation of bilinear systems

LA Johnston, V Krishnamurthy

Journal article  |  1999  |  IEEE Transactions on Signal Processing

On the equivalence of the extended Kalman smoother and the expectation maximisation algorithm for polynomial signal models

LA Johnston, V Krishnamurthy

Conference Proceedings  |  1999  |  1999 Information, Decision and Control. Data and Information Fusion Symposium, Signal Processing and Communications Symposium and Decision and Control Symposium. Proceedings (Cat. No.99EX251)

Optimal MAP estimation of bilinear systems via the EM algorithm

V Krishnamurthy, L Johnston, A Logothetis

Conference Proceedings  |  1998  |  Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '98 (Cat. No.98CH36181)

A Hidden Markov Model RPE algorithm for narrowband interference suppression in spread spectrum systems

L Johnston, V Krishnamurthy

Conference Proceedings  |  1998  |  ICC '98. 1998 IEEE International Conference on Communications. Conference Record. Affiliated with SUPERCOMM'98 (Cat. No.98CH36220)

Finite dimensional hybrid smoothers

LA Johnston, V Krishnamurty

Journal article  |  1998  |  Proceedings of the IEEE Conference on Decision and Control

Iterative algorithms for optimal MAP estimation of bilinear systems

L Johnston, V Krishnamurthy, A Logothetis

Conference Proceedings  |  1998  |  Proceedings. 1998 IEEE International Symposium on Information Theory (Cat. No.98CH36252)