Barbara M. Johnston

According to our database, Barbara M. Johnston authored at least 21 papers between 2004 and 2022.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of five.

2022

Utilising Surrogate Models to Approximate Cardiac Potentials when Solving Inverse Problems via Bayesian Techniques.

Abbish Kamalakkannan, Peter R. Johnston, Barbara M. Johnston

Proceedings of the Computing in Cardiology, 2022

2021

A modified approach to determine the six cardiac bidomain conductivities.

Abbish Kamalakkannan, Peter R. Johnston, Barbara M. Johnston

Comput. Biol. Medicine, 2021

Which bidomain conductivity is the most important for modelling heart and torso surface potentials during ischaemia?

Barbara M. Johnston, Peter R. Johnston

Comput. Biol. Medicine, 2021

2020

Approaches for determining cardiac bidomain conductivity values: progress and challenges.

Barbara M. Johnston, Peter R. Johnston

Medical Biol. Eng. Comput., 2020

2019

A Comparison of Methods for Examining the Effect of Uncertainty in the Conductivities in a Model of Partial Thickness Ischaemia.

Barbara M. Johnston, Akil Narayan, Peter R. Johnston

Proceedings of the 46th Computing in Cardiology, 2019

2018

Quantifying the effect of uncertainty in input parameters in a simplified bidomain model of partial thickness ischaemia.

Barbara M. Johnston, Sam Coveney, Eugene T. Y. Chang, Peter R. Johnston, Richard H. Clayton

Medical Biol. Eng. Comput., 2018

Sensitivity analysis of ST-segment epicardial potentials arising from changes in ischaemic region conductivities in early and late stage ischaemia.

Barbara M. Johnston, Peter R. Johnston

Comput. Biol. Medicine, 2018

Determining the most significant input parameters in models of subendocardial ischaemia and their effect on ST segment epicardial potential distributions.

Barbara M. Johnston, Peter R. Johnston

Comput. Biol. Medicine, 2018

2017

Using Generalised Polynomial Chaos to Examine Various Parameters in a Half-ellipsoidal Ventricular Model of Partial Thickness Ischaemia.

Barbara M. Johnston, Peter R. Johnston

Proceedings of the Computing in Cardiology, 2017

2016

Six Conductivity Values to Use in the Bidomain Model of Cardiac Tissue.

Barbara M. Johnston

IEEE Trans. Biomed. Eng., 2016

The method of steepest descent for estimating quadrature errors.

David Elliott, Barbara M. Johnston, Peter R. Johnston

J. Comput. Appl. Math., 2016

The Effect of Conductivity Values on Activation Times and Defibrillation Thresholds.

Barbara M. Johnston, Josef P. Barnes, Peter R. Johnston

Proceedings of the Computing in Cardiology, CinC 2016, Vancouver, 2016

2015

A complete error analysis for the evaluation of a two-dimensional nearly singular boundary element integral.

David Elliott, Barbara M. Johnston, Peter R. Johnston

J. Comput. Appl. Math., 2015

2014

How Accurately can Cardiac Conductivity Values be Determined from Heart Potential Measurements?

Barbara M. Johnston, Peter R. Johnston

Proceedings of the Computing in Cardiology, CinC 2014, 2014

2013

A multi-electrode array and inversion technique for retrieving six conductivities from heart potential measurements.

Barbara M. Johnston, Peter R. Johnston

Medical Biol. Eng. Comput., 2013

A new method for the numerical evaluation of nearly singular integrals on triangular elements in the 3D boundary element method.

Barbara M. Johnston, Peter R. Johnston, David Elliott

J. Comput. Appl. Math., 2013

Time Reversibility, Correlation Decay and the Steady State Fluctuation Relation for Dissipation.

Debra J. Searles, Barbara M. Johnston, Denis J. Evans, Lamberto Rondoni

Entropy, 2013

2011

Estimates of the error in Gauss-Legendre quadrature for double integrals.

David Elliott, Peter R. Johnston, Barbara M. Johnston

J. Comput. Appl. Math., 2011

2008

Clenshaw--Curtis and Gauss--Legendre Quadrature for Certain Boundary Element Integrals.

David Elliott, Barbara M. Johnston, Peter R. Johnston

SIAM J. Sci. Comput., 2008

2007

Possible Four-Electrode Configurations for Measuring Cardiac Tissue Fiber Rotation.

Barbara M. Johnston, Peter R. Johnston

IEEE Trans. Biomed. Eng., 2007

2004

A modified non-linear transformation method for evaluating weakly singular boundary integrals.

Barbara M. Johnston, Peter R. Johnston

Appl. Math. Comput., 2004