Professional Summary
Timothy D. Johnson is an associate professor of Biostatistics. He received his Ph.D. in Biostatistics from UCLA in 1997. He was a senior statistician in the UCLA department of Biomathematics from 1997-1998 and an adjunct assistant professor from 1998-2001. He also served as a consultant to the John Wayne Cancer Institute from 1997-2000. Dr.Johnson joined the faculty at the University of Michigan in 2001, where he is also a member of the biostatistics core of the Comprehensive Cancer Center.
Courses Taught
BIOSTAT645: Time Series Analysis with Biomedical Applications
Syllabus (PDF)
BIOSTAT664: Special Topics in Biostastics
Syllabus (PDF)
BIOSTAT695: Analysis of Categorical Data
Syllabus (PDF)
Education
Ph.D., Biostatistics, University of California, Los Angeles, 1997
M.S., Mathematics, University of California, Riverside, 1986
B.S., Mathematics, University of California, Riverside, 1984
Research Interests & Projects
Bayesian methods and MCMC. Statistical image analysis. Spatial point processes. Statistical modeling of biomedical data. Applications in neuroscience, cancer, radiology, radiation oncolocy, Psychology/Psychiatry and endocrinology.
Selected Publications
Search PubMed for publications by Timothy Johnson >>
Zhang, X., Johnson, T.D., Little, R.J.A. and Cao, Y. (March, 2010). A Bayesian image analysis of the change in tumor/brain contrast uptake ratio induced by radiation via reversible jump Markov chain Monte Carlo Bayesian Analysis, 1, 189-212.
Thomas C. Kwee, Craig J. Galban, Christina Tsien, Larry Junck, Pia C. Sundgren, Marko, K. Ivancevic, Timothy D. Johnson, Charles R. Meyer, Alnawaz Rehemtulla, Brian D. Ross, Thomas L. Chenevert (March, 2010). Comparison of apparent diff usion coefficients (ADC) and distributed di ffusion coefficients (DDC) in high-grade gliomas Journal of Magnetic Resonance Imaging, 531-537.
Galban, C. J., Mahaveer Bhojani, Kuei Lee, Charles Meyer, Marcian Van Dort, Kyle Kuszpit, Robert Koeppe, Rajesh Ranga, Bradford Mo at, Timothy Johnson, Thomas Chenevert, Alnawaz Rehemtulla and Brian Ross (March, 2010). Evaluation of Treatment Associated In flammatory Response on Diff usion Weighted-MRI and FDG-PET Imaging Biomarkers Clinical Cancer Research, 5, 1542-1552.
Fitzgerald, K., Perkins, S. C., Angstadt, M., Johnson, T. D., Stern, E. R., Welsh, R. C., Taylor, S. F. (February, 2010). The development of performance-monitoring function in the posterior medial frontal cortex. Neuroimage, 3463-3473.
Thomas C. Kwee, Craig J. Galban, Christina Tsien, Larry Junck, Pia C. Sundgren, Marko, K. Ivancevic, Timothy D. Johnson, Charles R. Meyer, Alnawaz Rehemtulla, Brian D. Ross, Thomas L. Chenevert (February, 2010). Intravoxel water di usion heterogeneity imaging of human high-grate gliomas NMR in Biomedicine, 179-187.
Tsien C, Galban C, Chenevert T, Johnson TD, Hamstra D, Sundgren PC, Junck L, Meyer C, Rehemtulla A, Lawrence TL, ,Ross B (2010). Parametric Response Map as an Imaging Biomarker to Distinguish Progression from Pseudoprogression in High Grade Gliomas Journal of Clinical Oncology
Zhang, X., Johnson, T. D., Little, R. J. A., and Cao, Y. (2010). Longitudinal image analysis of tumor/brain change in contrast uptake induced by radiation Journal of the Royal Statistical Society, Series C, Applied Statistics
Srinivasan, A., Galban, C. J., Johnson, T. D., Chenevert, T. L., Mukherji, S. K. (2010). Utility of K-Means clustering algorithm in diff erentiating apparent diff usion coefficient values between benign and malignant neck pathologies American Journal of Neuroradiology
Thomas L. Chenevert, Craig J. Galban, Marko K. Ivancevic, Susan E. Rohrer, Frank J. Londy, Thomas C. Kwee, Charles R. Meyer, Timothy D. Johnson, Alnawaz Rehemtulla and Brian D. Ross (2010). Multi-Center Apparent Diff usion Coefficient (ADC) Measurement using a Universal Temperature Controlled Fluid Journal of Magnetic Resonance Imaging
Khan, A.S., Hussain, H.K., Johnson, T.D., Weadock, W.J., Pelletier, S. J., Marrero, J.A. (2010). The value of delayed hypointensity and enhancing rim in the MR imaging diagnosis of small hepatocellular carcinoma in the cirrhotic liver. Journal of Magnetic Resonance Imaging
Professional Affiliations
Member, International Society of Bayesian Analysis
Member, American Statistical Association
Member, Delta Omega Society (scholarly society in public health)
Member, Eastern North American Region of the International Biometrics Society
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