Faculty

Frank J. "Fritz" Claydon
Dr. Frank J. "Fritz" Claydon
Professor
Office Location: E421 Engineering Building 2
Phone: 713-743-4204 | Fax: 713-743-4214
Email: fclaydon [at] uh [dot] edu

Education: 

B.S. in Bioengineering, Texas A & M University, College Station, TX
M.S. in Biomedical Engineering, Duke University, Durham, NC
PhD in Biomedical Engineering, Duke University, Durham, NC

Professional Experience: 

Assistant Professor of Electrical Engineering,The University of Memphis, 1987-1992
Adjunct Professor of Biomedical Engineering, University of Tennessee, Memphis, 1988-1999
Associate Dean, Herff College of Engineering, The University of Memphis, 1991-1999
Associate Professor of Electrical Engineering, The University of Memphis, 1992-1998
Associate Professor of Biomedical Engineering, The University of Memphis, 1994-1998
ECI Professor of Biomedical and Electrical Engineering, The University of Memphis, 1998-1999
Professor and Chair of Electrical and Computer Engineering, University of Houston, 1999-2004
Associate Dean for Undergraduate Studies and Computer Facilities, Cullen College of Engineering, University of Houston, 2004-2007
Interim Dean, Cullen College of Engineering, University of Houston, 2007
Associate Dean for Administration and Research, Cullen College of Engineering, University of Houston, 2008-2013
Director of the Honors Engineering Program, University of Houston, 2013-Present
Director of the Division of Undergraduate Programs and Student Success, Cullen College of Engineering, Unviversity of Houston, 2015-Present

Research Interests: 

Bioengineering; Defibrillation efficacy and optimization; Intracavitary mapping; Electrocardiographic predictors of ventricular arrhythmias; Clinical and experimental electrophysiology.

Funded Research: 

Texas Workforce Commission, "Texas Youth in Technology", 5/01/10 to 8/01/11, $330,000
Texas Workforce Commission, "Texas Youth in Technology", 2/01/09 to 8/01/10, $300,000
Texas Higher Education Coordinating Board, "Summer Camps", 3/01/08 to 10/01/08, $20,000
Texas Workforce Commission, "Youth in Technology", 12/01/07 to 8/31/09, $300,000
Texas Workforce Commission, "Peer Mentoring Scholarships", 9/01/07 to 8/31/08, $62,302
Texas Higher Education Coordinating Board, "Step Forward: Preparing Low-Income High School Students for Academic Success in ECE at UH", 8/01/06 to 3/31/08, $274,889
Texas Higher Education Coordinating Board, "Retention of Female Undergraduate ECE Students at UH", 5/01/05 to 8/31/07, $79,176
Texas Higher Education Coordinating Board, "Undergraduate Recruiting and Retention of ECE Students at UH: Best Practices", 5/01/05 to 8/31/07, $372,561
Texas Higher Education Coordinating Board, "Undergraduate Recruiting and Retention of ECE Students at UH", 9/1/04 to 8/31/06, $331,449
Texas Higher Education Coordinating Board, "Undergraduate Recruiting and Retention of ECE Students at UH", 3/1/02 to 3/31/07, $604,450
National Science Foundation, "Research Experience for Undergraduates in Electrical and Computer Engineering", 4/1/00 to 3/31/01, $88,889
National Science Foundation, "Research Experiences for Undergraduates in Bioengineering", 9/1/98 to 3/31/00, $120,000.
Cardiac Pacemakers Inc. "Defibrillation Efficacy", 4/1/97 to 3/31/99, $91,978.
American Heart Association, Grant-In-Aid, "Optimizing Defibrillation Efficacy Utilizing a Computer Model of the Human Torso", 7/1/95 to 12/31/97, $50,000.
NIH Small Instrumentation Grant, 8/1/94 to 7/31/95, $19,030.
Whitaker Foundation, Biomedical Research Grants Program, "Intracavitary Mapping: Models and Experiments", 8/1/93 to 7/31/96, $180,000.
American Heart Association, Grant-In-Aid, "Intracavitary Mapping:Models and Experiments", 7/1/93 to 6/30/95, $50,000.
NIH Small Instrumentation Grant, 9/1/92 to 8/31/93, $17,540.
National Science Foundation - Duke University Engineering Research Center, "A Study of Current Pathways During Transthoracic Defibrillation", 5/1/92 to 7/1/92, $11,607.
NIH-AREA Program, "Intracavitary Mapping: Models and Experiments", 7/15/91 to 6/30/94, $98,296.
National Science Foundation - Duke University Engineering Research Center, "Examining the Fraction of Intrathoracic Current that Enters the Heart During Transthoracic Defibrillation", 5/15/91 to 4/30/92, $16,018.
American Heart Association, "Electrocardiographic Predictors of Ventricular Arrhythmias", 7/1/89 to 6/30/91, $55,000.
National Science Foundation, "Research Experiences for Undergraduates in Bioengineering", 4/1/97 to 8/31/98, $180,000, Co-PI with Richard Warder.
Whitaker Foundation Special Opportunities Award, "The Memphis Collaboration for Biomedical Engineering", 8/1/95 to 12/31/98, $750,000, Eugene Eckstein: Principal Investigator.
VA Merit Review, "Clinical & Experimental Electrophysiology", 10/1/91 to 9/30/94, $120,000, David Mirvis: Principal Investigator.
NIH-BRSG Program, "Electrocardiographic Correlates of Myocardial Ischemia", 7/1/89 to 6/30/91, $54,665, David Mirvis: Principal Investigator.

Selected Publications: 

Katherine S. Zerda, Diana de la Rosa-Pohl, Stuart A. Long, Fritz J. Claydon,“ImprovingStudent Engagement and Outcomes in First-Year Engineering Courses at a Highly Diverse, Multicultural Urban University”, University of Houston, 2012 ASEE Annual Conference.

Katherine S. Zerda, Stuart A. Long, Fritz J. Claydon, “Multicultural Engineering Recruitment and Retention at a Large Urban University”, University of Houston, 2012 ASEE Annual Conference.

F. Claydon and L. Faidley (Iowa State),“Engaging Undergraduates in Research: Best Practices for Bridging Research and Practice”, National Science Foundation, Engineering Education and Centers, April 2011.

Julie Martin Trenor, Frank J. Claydon, Stuart A. Long, Rachel Danek Jones,“Retention of Female Undergraduate ECE Students at the University of Houston”, Texas Engineering and technical Consortium Conference, Austin, Texas, 2007.

Fritz Claydon, Dorota Bernatek, Katherine Zerda, and Stuart Long, “Retention Tools for Engineering Students”, Texas Engineering and technical Consortium Conference, Austin, Texas, 2007.

Katherine S. Zerda, Frank J. Claydon, Stuart A. Long, and John M. Matthews, “Step Forward: Preparing Low-income High School Students for Academic Success in ECE at UH”, Texas Engineering and technical Consortium Conference, Austin, Texas, 2007.

Julie Martin Trenor, Chidiogo Madubike, and Frank J. Claydon, “Establishing a Women in Engineering Program at an Urban University”, Proceedings of the 2006 WEPAN/NAMEPA Joint Conference, Pittsburgh, Pennsylvania, June 2006.

Julie Martin Trenor, Chidiogo Madubike, and Frank J. Claydon, “Establishing a Women in Engineering Program at an Urban University”, Proceedings of the 2006 WEPAN/NAMEPA Joint Conference, Pittsburgh, Pennsylvania, June 2006.

Julie Martin Trenor, Jenny Ruchhoeft, Stuart Long, and Frank Claydon,“Improving K-12 Teaching Through the Research Experiences for Teacher Program at the University of Houston”, Proceedings of the 2006 Annual American Society of Engineering Education Annual Conference and Exhibition, Chicago, Illinois, June 2006.

John R. Glover, Jennifer L. Ruchhoeft, Julie Martin Trenor, Stuart A. Long, Frank J.
Claydon,“Girls Reaching and Demonstrating Excellence (G.R.A.D.E.) Camps: An Innovative Recruiting Strategy at the University of Houston to Increase Female Representation in Engineering”, American Society of Engineering Education Annual Conference and Exhibition, Portland, Oregon, June 2005.

David P. Shattuck, Betty J. Barr, Jennifer L. Ruchhoeft, Julie Martin Trenor, Stuart A. Long,Frank J. Claydon, “Collaborative Learning as a Tool for Retention of Engineering Students: An Update on the Success of Engineering ‘Redshirt’ Camps and Collaborative Learning Workshops at the University of Houston Cullen College of Engineering”, American Society of Engineering Education Annual Conference and Exhibition, Portland, Oregon, June 2005.

Entcheva E, Trayanova N, and Claydon FJ: Patterns of and mechanisms for shock-induced polarization in the heart: A bidomain analysis. IEEE Transactions on Biomedical Engineering. 46:260-270, 1999.

de Jongh AL, Entcheva E, Replogle J, Booker R, KenKnight B, Claydon FJ: Defibrillation efficacy of different electrode placements in a human thorax model. PACE 22-II:152-157, 1999.

Huang Q, Eason J, and Claydon FJ: Membrane polarization induced in the myocardium by defibrillation fields: Anidealized 3D finite element bidomain/monodomain torso model. IEEE Transactions on Biomedical Engineering 46:26-34, 1999.

deJongh A, Claydon FJ, Entcheva E, Replogle J, Booker R, KenKnight K: Locating weak potential gradient fields during transvenous defibrillation in a human thorax model. PACE 21:911, 1998.

Entcheva E, Trayanova N, Claydon FJ: Uniform electric field can induce virtual electrodes through cardiac fiber curvature. PACE 21:961, 1998.

Entcheva E, Eason J, Efimov I, Cheng Y, Malkin R, and Claydon FJ: Virtual electrode efffects in transvenous defibrillation - modulation by structure and interface: Evidence from bidomain simulations and optical mapping. Journal of Cardiovascular Electrophysiology 9:949-961, 1998.

Replogle J, Russomano D, deJongh AL, and Claydon FJ: Extracting isovolumes from three-dimensional torsogeometry using PROLOG. IEEE Transactions on Information Technology in Biomedicine 2:10-19, 1998.

Replogle J, deJongh AL, Russomano D, and Claydon FJ: Defining a volume threshold value with PROLOG. IEEE Computers in Cardiology 25:33-36, 1997.

deJongh AL, Entcheva E, Replogle J, and Claydon FJ: Effects of cardiac anisotropy on modeling transvenous defibrillation in the human thorax. IEEE Computers in Cardiology 25:239-242, 1997.

Entcheva E, Eason J, Claydon FJ, and Malkin R: Spatial effects from bipolar current injection in 3D myocardium: implications for conductivity measurements. IEEE Computers in Cardiology 25:717-720, 1997.

deJongh AL, Entcheva E, Replogle J, and Claydon FJ: Determining the level of complexity require to model transvenous defibrillation fields. Proceedings 19th Annual Conference IEEE Engineering in Medicine and Biology Society, Chicago, Illinois, Nov. 1997.

Entcheva E, Huang Q, deJongh A, Re- plogle J, and Claydon FJ: Simple classification technique for 3D highly heterogeneous domains and its applications in defibrillation modeling. Proceedings 19th Annual Conference IEEE Engineering in Medicine and Biology Society, Chicago, Illinois, Nov. 1997.

Huang Q and Claydon FJ: A comparison of bidomain and monodomain models in calculating the cardiac extracellular potentials induced by an external Field. IEEE Computers in Cardiology 24:225-228, 1996.

deJongh AL, and Claydon FJ: Reducing mesh size for finite element modeling of transvenous defibrillation. Proceedings 18th Annual Conference IEEE Engineering in Medicine and Biology Society, Amsterdam, Netherlands, Nov. 1996.

Huang Q and Claydon FJ: Transmembrane potential distribution in a spherical heart during field stimulation: A 3Dfinite element bidomain model. Proceedings 18th Annual Conference IEEE Engineering in Medicine and Biology Society, Amsterdam, Netherlands, Nov. 1996.

Entcheva E and Claydon FJ: A discrete model of the dynamic behavior of the cardiac muscle. IEEE Computers in Cardiology 24:609-612, 1996.

deJongh AL and Claydon FJ, Mirvis DM: Examining the effects of uncertainty in intracavitary probe data on derived endocardial activation sequences. Circulation 92(IV):383, 1995.

deJongh AL and Claydon FJ: The effect of skeletal muscle layer modeling on cardiac damage estimates during transthoracic defibrillation. Proceedings 17th Annual Conference IEEE Engineering in Medicine and Biology Society, Montreal, Canada, Sept. 1995.

Mayfield DF and Claydon FJ: Examining the effects of geometric uncertainty on the computation of endocardial potentials from measured intracavitary potentials. Proceedings 16th Annual Conference IEEE Engineering in Medicine and Biology Society, Baltimore, MD, Nov. 1994, *(finalist in student paper competition).

deJongh AL and Claydon FJ: Using intracavitary potentials to spatially map left-ventricular endocardial activation sequences before and after coronary occlusion. Circulation 90(IV):179, 1994.

Mayfield DF, Brannon SL, Claydon FJ: Examining the effects of geometric uncertainty in computing 
endocardial potentials from measured intracavitary potentials via an inverse solution. Proceedings 
Cardiovascular Science and Technology Conference, Washington DC, p38, 1993.

deJongh AL, Claydon FJ: Examining the effects of thoracic inhomogeneties on the
transcardiac current fraction during transthoracic defibrillation of the human torso. Proceedings of Cardiovascular Science and 
Technology Conference, Washington DC, p40, 1993.

deJongh AL, Claydon FJ, Mirvis DM: Examining the fraction of intrathoracic current that
enters the human heart during transthoracic defibrillation. Circulation 88(IV):593, 1993.

deJongh AL, Claydon FJ, Mirvis DM: Examining the fraction of intrathoracic current that
enters the human heart during transthoracic defibrillation. IEEE Computers in Cardiology 20:61-64, 1993.

Claydon FJ, Brannon SL, Mirvis DM: Calculating endocardial potentials from measured intracavitary potentials via an inverse solution. Proceedings 15th Annual Conference IEEE Engineering in Medicine and Biology Society, San Diego, CA, Nov. 1993.

Claydon FJ, Milligan KL, Gray TE, Mirvis DM: An equivalent generator representation of measured 
intracavitary potentials. Proceedings 14th Annual Conference IEEE Engineering in Medicine and Biology 
Society, Paris, France, Nov. 1992.

Hilger AL, Claydon FJ, Ingram LA, Mirvis DM: Quantitative effects of acute myocardial
infarction on 
intracavitary potentials Proceedings 14th Annual Conference IEEE Engineering in Medicine and Biology 
Society, Paris France, Nov. 1992,* (finalist in student paper
competition).

Claydon FJ, Ingram LA, Mirvis DM: Effects of myocardial infarction on electrical field dipolarity using a numerical expansion technique. Journal of Electrocardiology. 24: No. 4:1-7, 1991

Claydon FJ, Hilger AL, Morrow MN, Pilkington TC: Examining the fraction of intrathoracic current that 
enters the heart during transthoracic defibrillation. Proceedings 13th Annual Conference IEEE Engineering in 
Medicine and Biology Society, Orlando, FL, Nov. 1991.

Milligan KL, Claydon FJ, Mirvis DM: Using intraventricular potentials to determine an equivalent cardiac dipole during myocardial infarction. Circulation 82(IV):751, 1990.


Kummeth BK, Claydon FJ, Mirvis DM: Using multi-channel intracavitary ECG's in a cross-validation procedure to estimate myocardial infarction. IEEE Computers in Cardiology 17:633-636, 1990.

Milligan KL, Claydon FJ, Mirvis DM: Equivalent dipole properties of intracavitary potentials during 
myocardial infarction. Proceedings 12th Annual Conference IEEE Engineering in Medicine and Biology 
Society, Philadelphia, PA, Nov. 1990.

Claydon FJ, Ingram LA, Mirvis DM: Detecting myocardial infarction with a numerical expansion technique: Effects of Data Pooling. IEEE Computers in Cardiology 16:193-196, 1989.

Claydon FJ, Ingram LA, Mirvis DM: Differences in electric field dipolarity after experimental
anterior and posterior myocardial infarction. Circulation 80(IV):136,1989

Claydon FJ and Mirvis DM: Simultaneous ST segment elevation and depression in
intraventricular potential maps recorded during acute myocardial injury. Circulation 80(IV):153,
1989.

Claydon FJ, Ingram LA, Mirvis DM: Spatial compression of body surface electrocardiographic
data as a means to accurately characterize underlying ventricular activation. Circulation 80(IV):134, 1989.

Tang AS, Wolf PD, Claydon FJ, Smith WM, Ideker RE: Measurement of defibrillation shock potential distributions and activation sequences of the heart in three dimensions. Proc. IEEE 76:1176-1186, 1988.

Claydon FJ, Tang AS, Morrow MN, Ideker RE, Pilkington TC: A volume conductor model of the thorax for the study of defibrillation fields. IEEE Trans on Biomed Eng 35:981-992, 1988.

Claydon FJ, Pilkington TC, Tang AS, Morrow, MN, Ideker RE: Comparison of measured and calculated 
epicardial potentials during transthoracic stimulation. Proceedings 10th Annual Conference IEEE 
Engineering in Medicine and Biology Society, New Orleans, LA, Nov. 1988.

Wharton JM, Wolf PD, Chen PS, Bowling SD, Claydon FJ, Pilkington TC, Ideker RE: Is an
absolute minimum potential gradient required for ventricular defibrillation? Circulation 74(IV):342, 1986.

Chen PS, Wolf PD, Claydon FJ, Dixon EG, Shibata N, Smith WM, Ideker RE: The cardiac potential field created by chest wall defibrillation electrodes in dogs. J Am Coll Cardiol 7:97A, 1986.

Chen PS, Wolf PD, Claydon FJ, Dixon EG, Vidaillet H, Danieley D, Pilkington TC, Ideker RE: The cardiac potential field created by epicardial defibrillation electrodes in dogs. Pace 9:177, 1986.


Claydon FJ, Pilkington TC, Wolf PD, Danieley ND, Ideker RE: Modeling of the cardiac field produced by transthoracic defibrillation. Circulation 74(IV):344, 1986.

Chen PS, Wolf PD, Claydon FJ, Dixon EG, Vidaillet H, Jr., Danieley ND, Pilkington TC, Ideker RE: The potential gradient field created by epicardial defibrillation electrode in dogs.Circulation 74(III):626-636, 1986

Claydon FJ, Pilkington TC, Ideker RE: Obtaining uniform cardiac fields during defibrillation. Proceedings 8th Annual Conference IEEE Engineering in Medicine and Biology Society, Ft. Worth, TX, Nov. 1986.

Claydon FJ, Pilkington TC, Ideker RE: Classification of heart tissue from bipolar and unipolar intramural potentials. IEEE Trans on Biomed Eng 32:513-520, 1985.

Claydon FJ, Ideker RE, Pilkington TC: Criteria for detecting normal activation in intramural recordings. Circulation 70(II):219, 1984

Claydon FJ, Pilkington TC, Ideker RE: Classification of heart tissue from intramural potentials.
Proceedings 6th Annual Conference IEEE Engineering in Medicine and Biology Society, Los Angeles, CA, Sept. 1984.