banner research

Biomedical Computing

Biomedical computing combines the diagnostic and investigative aspects of biology and medical science with the power and problem-solving capabilities of modern computing. Computers are used to accelerate research learning, simulate patient behavior and visualize complex biological models.


chris

Chris Johnson

Inverse Problems
Computational Electrophysiology
rob

Rob MacLeod

Inverse Problems
Computational Electrophysiology
jeff

Jeff Weiss

Computational Biomechanics
orly

Orly Alter

Computational Biology

butson

Chris Butson

Neuromodulation
Deep Brain Simulation
Transcranial Magnetic Stimulation (TMS)

     

Associated Centers:


Publications in Biomedical Computing:




A Computational Steering Model Applied to Problems in Medicine
C.R. Johnson, S.G. Parker. In Supercomputing 94, IEEE Press, pp. 540--549. 1994.



Construction of a Human Torso Model from Magnetic Resonance Images for Problems in Computational Electrocardiography
School of Computing Technical Report, R.S. MacLeod, C.R. Johnson, P.R. Ershler. No. UUCS-94-017, University of Utah, 1994.



A Morphing Algorithm for Generating Near Optimal Grids: Applications in Computational Medicine
School of Computing Technical Report, S.G. Parker, D.M. Weinstein, C.R. Johnson. No. UUCS-94-014, University of Utah, 1994.



Large Scale Biomedical Modeling and Simulation: From Concepts to Results
C.S. Henriquez, C.R. Johnson, K.A. Henneberg, L.J. Leon, A.E. Pollard.. In Frontiers in Biomedical Computing, Edited by N. Thakor, IEEE Press, Philadelphia 1994.



Visualization of 3-D wave prorogation in the heart - a new technique
H.W. Shen, P.B. Gharpure, C.R. Johnson. In IEEE Engineering in Medicine and Biology Society 16th Annual International Conference, IEEE Press, pp. 684--685. 1994.



Map3d: Interactive Scientific Visualization for Bioengineering Data
R.S. MacLeod, C.R. Johnson. In Proceedings of the IEEE Engineering in Medicine and Biology Society 15th Annual International Conference, IEEE Press, pp. 30--31. 1993.



The Body Electric
C.R. Johnson, R.S. MacLeod, M.A. Matheson, C. Zimmerman. In Discover Magazine, pp. 72--77. February, 1993.



Computational Medicine: Bioelectric Field Problems
C.R. Johnson, R.S. MacLeod, M.A. Matheson. In IEEE Computer, Vol. 26, No. 26, pp. 59--67. Oct, 1993.



High Performance Computing in Medicine: Direct and Inverse Problems in Cardiology
C.R. Johnson, R.S. MacLeod. In IEEE Engineering in Medicine and Biology Society 15th Annual International Conference, pp. 582--583. 1993.



Inverse Solutions for Electric and Potential Field Imaging
C.R. Johnson, R.S. MacLeod. In Physiological Imaging, Spectroscopy, andEarlyDetection Diagnostic Methods, Vol. 1887, Edited by R.L. Barbour and M.J. Carvlin, SPIE, pp. 130--139. 1993.



Visualization of Bioelectric Fields
R.S. MacLeod, C.R. Johnson, M.A. Matheson. In IEEE Computer Graphics and Applications, Vol. 14, pp. 10--12. Jul, 1993.



A 3D Cellular Automata Model of the Heart
P.B. Gharpure, C.R. Johnson. In IEEE Engineering in Medicine and Biology Society 15th Annual International Conference, IEEE Press, pp. 752--753. 1993.



A computer model for the study of electrical current flow in the human thorax
C. R. Johnson, R. S. MacLeod, P. R. Ershler. In Computers in Biology and Medicine, Vol. 22, No. 5, Elsevier BV, pp. 305--323. September, 1992.
DOI: 10.1016/0010-4825(92)90020-n

Electrocardiography has played an important role in the detection and characterization of heart function, both in normal and abnormal states. In this paper we present an inhomogeneous, anisotropic computer model of the human thorax for use in electrocardiography with emphasis on the calculation of transthoracic potential and current distributions. Knowledge of the current pathways in the thorax has many applications in electrocardiography and has direct utility in studies pertaining to cardiac defibrillation, forward and inverse problems, impedance tomography, and electrode placement in electrocardiography.



Computer Simulations Reveal Complexity of Electrical Activity in the Human Thorax
C.R. Johnson, R.S. MacLeod, M.A. Matheson. In Computers in Physics, Vol. 6, pp. 230--237. May/June, 1992.



Localization of Ischemia during Coronary Angioplasty using Body Surface Potential Mapping and an Electrocardiographic Inverse Solution
R.S. MacLeod, C.R. Johnson, M.J. Gardner B.M.. In Computers in Cardiology, IEEE Press, pp. 251--254. 1992.



Effects of Anistropy and Inhomogeneity on Electrocardiographic Fields: A Finite Element Study
C.R. Johnson, R.S. MacLeod, A. Dutson. In Engineering in Medicine and Biology Society 14th Annual International Conference, IEEE Press, pp. 2009--2010. 1992.



Visualization of cardiac bioelectricity --- a case study
R.S. MacLeod, C.R. Johnson, M.A. Matheson. In IEEE Visualization `92, pp. 411--418. 1992.



Visualization Tools for Computational Electrocardiology
R.S. MacLeod, C.R. Johnson, M.A. Matheson. In Visualization in Biomedical Computing, pp. 433--444. 1992.



A Computer Model for the Study of Electrical Current Flow in the Human Thorax
C.R. Johnson, R.S. MacLeod, P.R. Ershler. In Computers in Biology and Medicine, Vol. 22, No. 3, pp. 305--323. 1992.



Computational Studies of Forward and Inverse Problems in Electrocardiology
C.R. Johnson, R.S. MacLeod. In Biomedical Modeling and Simulation, Edited by J. Eisenfeld and D.S. Levine and M. Witten, Elsevier Science Publishers, Elsevier, Amsterdam pp. 283--290. 1992.