Barbara M. Johnston

Publication Activity (10 Years)

Years Active: 2004-2022
Publications (10 Years): 12

Top Topics

Boundary Element

Input Parameters

Top Venues

Comput. Biol. Medicine

J. Comput. Appl. Math.

Medical Biol. Eng. Comput.

Publications

Abbish Kamalakkannan, Peter R. Johnston, Barbara M. Johnston
Utilising Surrogate Models to Approximate Cardiac Potentials when Solving Inverse Problems via Bayesian Techniques. CinC (2022)
Barbara M. Johnston, Peter R. Johnston
Which bidomain conductivity is the most important for modelling heart and torso surface potentials during ischaemia? Comput. Biol. Medicine 137 (2021)
Abbish Kamalakkannan, Peter R. Johnston, Barbara M. Johnston
A modified approach to determine the six cardiac bidomain conductivities. Comput. Biol. Medicine 135 (2021)
Barbara M. Johnston, Peter R. Johnston
Approaches for determining cardiac bidomain conductivity values: progress and challenges. Medical Biol. Eng. Comput. 58 (12) (2020)
Barbara M. Johnston, Akil Narayan, Peter R. Johnston
A Comparison of Methods for Examining the Effect of Uncertainty in the Conductivities in a Model of Partial Thickness Ischaemia. CinC (2019)
Barbara M. Johnston, Peter R. Johnston
Determining the most significant input parameters in models of subendocardial ischaemia and their effect on ST segment epicardial potential distributions. Comput. Biol. Medicine 95 (2018)
Barbara M. Johnston, Sam Coveney, Eugene T. Y. Chang, Peter R. Johnston, Richard H. Clayton
Quantifying the effect of uncertainty in input parameters in a simplified bidomain model of partial thickness ischaemia. Medical Biol. Eng. Comput. 56 (5) (2018)
Barbara M. Johnston, Peter R. Johnston
Sensitivity analysis of ST-segment epicardial potentials arising from changes in ischaemic region conductivities in early and late stage ischaemia. Comput. Biol. Medicine 102 (2018)
Barbara M. Johnston, Peter R. Johnston
Using Generalised Polynomial Chaos to Examine Various Parameters in a Half-ellipsoidal Ventricular Model of Partial Thickness Ischaemia. CinC (2017)
David Elliott, Barbara M. Johnston, Peter R. Johnston
The method of steepest descent for estimating quadrature errors. J. Comput. Appl. Math. 303 (2016)
Barbara M. Johnston, Josef P. Barnes, Peter R. Johnston
The Effect of Conductivity Values on Activation Times and Defibrillation Thresholds. CinC (2016)
Barbara M. Johnston
Six Conductivity Values to Use in the Bidomain Model of Cardiac Tissue. IEEE Trans. Biomed. Eng. 63 (7) (2016)
David Elliott, Barbara M. Johnston, Peter R. Johnston
A complete error analysis for the evaluation of a two-dimensional nearly singular boundary element integral. J. Comput. Appl. Math. 279 (2015)
Barbara M. Johnston, Peter R. Johnston
How Accurately can Cardiac Conductivity Values be Determined from Heart Potential Measurements? CinC (2014)
Debra J. Searles, Barbara M. Johnston, Denis J. Evans, Lamberto Rondoni
Time Reversibility, Correlation Decay and the Steady State Fluctuation Relation for Dissipation. Entropy 15 (5) (2013)
Barbara M. Johnston, Peter R. Johnston, David Elliott
A new method for the numerical evaluation of nearly singular integrals on triangular elements in the 3D boundary element method. J. Comput. Appl. Math. 245 (2013)
Barbara M. Johnston, Peter R. Johnston
A multi-electrode array and inversion technique for retrieving six conductivities from heart potential measurements. Medical Biol. Eng. Comput. 51 (12) (2013)
David Elliott, Peter R. Johnston, Barbara M. Johnston
Estimates of the error in Gauss-Legendre quadrature for double integrals. J. Comput. Appl. Math. 236 (6) (2011)
David Elliott, Barbara M. Johnston, Peter R. Johnston
Clenshaw--Curtis and Gauss--Legendre Quadrature for Certain Boundary Element Integrals. SIAM J. Sci. Comput. 31 (1) (2008)
Barbara M. Johnston, Peter R. Johnston
Possible Four-Electrode Configurations for Measuring Cardiac Tissue Fiber Rotation. IEEE Trans. Biomed. Eng. 54 (3) (2007)
Barbara M. Johnston, Peter R. Johnston
A modified non-linear transformation method for evaluating weakly singular boundary integrals. Appl. Math. Comput. 148 (2) (2004)