Peter R. Johnston

According to our database, Peter R. Johnston authored at least 32 papers between 1997 and 2022.

Collaborative distances:

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

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

A Model of Anatomically Opposed Ischaemia: Revisited.

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

Accuracy of electrocardiographic imaging using the method of fundamental solutions.

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

How Accurately Can the Method of Fundamental Solutions Solve the Inverse Problem of Electrocardiology?

Peter R. Johnston

Proceedings of the Computing in Cardiology, 2017

2016

The method of steepest descent for estimating quadrature errors.

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

J. Comput. Appl. Math., 2016

Application of robust Generalised Cross-Validation to the inverse problem of electrocardiology.

Josef P. Barnes, Peter R. Johnston

Comput. Biol. Medicine, 2016

Assessing Endocardial Activation from Bipolar Intra-Ventricular Electrodes: A Simulation Study.

Peter R. Johnston, Gerald Fischer

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

Finding needles in haystacks: linking scientific names, reference specimens and molecular data for Fungi.

Conrad L. Schoch, Barbara Robbertse, Vincent Robert, Duong Vu, Gianluigi Cardinali, Laszlo Irinyi, Wieland Meyer, R. Henrik Nilsson, Karen Hughes, Andrew N. Miller, Paul M. Kirk, Kessy Abarenkov, M. Catherine Aime, Hiran A. Ariyawansa, Martin Bidartondo, Teun Boekhout, Bart Buyck, Qing Cai, Jie Chen, Ana Crespo, Pedro W. Crous, Ulrike Damm, Z. Wilhelm De Beer, Bryn T. M. Dentinger, Pradeep K. Divakar, Margarita Dueñas, Nicolas Feau, Katerina Fliegerova, Miguel A. García, Zai-Wei Ge, Gareth W. Griffith, Johannes Z. Groenewald, Marizeth Groenewald, Martin Grube, Marieka Gryzenhout, Cécile Gueidan, Liangdong Guo, Sarah Hambleton, Richard C. Hamelin, Karen Hansen, Valérie Hofstetter, Seung-Beom Hong, Jos Houbraken, Kevin D. Hyde, Patrik Inderbitzin, Peter R. Johnston, Samantha C. Karunarathna, Urmas Kõljalg, Gábor M. Kovács, Ekaphan Kraichak, Krisztina Krizsan, Cletus P. Kurtzman, Karl-Henrik Larsson, Steven Leavitt, Peter M. Letcher, Kare Liimatainen, Jian-Kui Liu, D. Jean Lodge, Janet Jennifer Luangsa-ard, H. Thorsten Lumbsch, Sajeewa S. N. Maharachchikumbura, Dimuthu Manamgoda, María P. Martín, Andrew M. Minnis, Jean-Marc Moncalvo, Giuseppina Mulè, Karen K. Nakasone, Tuula Niskanen, Ibai Olariaga, Tamás Papp, Tamás Petkovits, Raquel Pino-Bodas, Martha J. Powell, Huzefa A. Raja, Dirk Redecker, J. M. Sarmiento-Ramirez, Keith A. Seifert, Bhushan Shrestha, Soili Stenroos, Benjamin Stielow, Sung-Oui Suh, Kazuaki Tanaka, Leho Tedersoo, M. Teresa Telleria, Dhanushka Udayanga, Wendy A. Untereiner, Javier Diéguez Uribeondo, Krishna V. Subbarao, Csaba Vágvölgyi, Cobus M. Visagie, Kerstin Voigt, Donald M. Walker, Bevan S. Weir, Michael Weiß, Nalin N. Wijayawardene, Michael J. Wingfield, J. P. Xu, Zhu L. Yang, Ning Zhang, Wen-Ying Zhuang, Scott Federhen

Database J. Biol. Databases Curation, 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

Defibrillation Thresholds: A Generalised Polynomial Chaos Study.

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

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

2003

The effect of conductivity values on ST segment shift in subendocardial ischaemia.

Peter R. Johnston, David Kilpatrick

IEEE Trans. Biomed. Eng., 2003

2002

An Analysis of the Zero-Crossing Method for Choosing Regularization Parameters.

Peter R. Johnston, Ramesh M. Gulrajani

SIAM J. Sci. Comput., 2002

2001

The importance of anisotropy in modeling ST segment shift in subendocardial ischaemia.

Peter R. Johnston, David Kilpatrick, Chuan Yong Li

IEEE Trans. Biomed. Eng., 2001

2000

Selecting the corner in the L-curve approach to Tikhonov regularization.

Peter R. Johnston, Ramesh M. Gulrajani

IEEE Trans. Biomed. Eng., 2000

1997

A new method for regularization parameter determination in the inverse problem of electrocardiography.

Peter R. Johnston, Ramesh M. Gulrajani

IEEE Trans. Biomed. Eng., 1997

The Laplacian inverse problem of electrocardiography: an eccentric spheres study.

Peter R. Johnston

IEEE Trans. Biomed. Eng., 1997