PRESTON THOMAS FLETCHER portrait
  • Adjunct Associate Professor, School Of Computing
  • Associate Professor, School Of Computing
801-587-9641

Publications

  • Douglas C Dean III, Brittany G Travers, Nagesh Adluru, Do PM Tromp, Daniel J Destiche, Danica Samsin, Molly B Prigge, Brandon A Zielinski, P Thomas Fletcher, Jeffrey S Anderson, Alyson L Froehlich, Erin D Bigler, Nicholas Lange, Janet E Lainhart, Andrew L Alexander, Investigating the microstructural correlation of white matter in autism spectrum disorder, Brain connectivity 6 (5), 415-433. Published, 06/01/2016.
  • Zhang M & Fletcher PT (2015). Bayesian principal geodesic analysis for estimating intrinsic diffeomorphic image variability. Medical image analysis. Vol. 25, 37-44. Published, 08/01/2015.
  • Gutman BA, Fletcher PT, Cardoso MJ, Fleishman GM, Lorenzi M, Thompson PM & Ourselin S (2015). A Riemannian Framework for Intrinsic Comparison of Closed Genus-Zero Shapes. Information processing in medical imaging : proceedings of the ... conference. Vol. 24, 205-18. Published, 07/01/2015.
  • Zhang M & Fletcher PT (2015). Finite-Dimensional Lie Algebras for Fast Diffeomorphic Image Registration. Information processing in medical imaging : proceedings of the ... conference. Vol. 24, 249-59. Published, 07/01/2015.
  • Fleishman GM, Gutman BA, Fletcher PT & Thompson PM (2015). Simultaneous Longitudinal Registration with Group-Wise Similarity Prior. Information processing in medical imaging : proceedings of the ... conference. Vol. 24, 746-57. Published, 07/01/2015.
  • Fleishman GM, Gutman BA, Fletcher PT & Thompson P (2015). A Transformation Similarity Constraint for Groupwise Nonlinear Registration in Longitudinal Neuro Imaging Studies. Proceedings of SPIE--the International Society for Optical Engineering. Vol. 9413. Published, 04/01/2015.
  • Lange N, Travers BG, Bigler ED, Prigge MB, Froehlich AL, Nielsen JA, Cariello AN, Zielinski BA, Anderson JS, Fletcher PT, Alexander AA & Lainhart JE (2015). Longitudinal volumetric brain changes in autism spectrum disorder ages 6-35 years. Autism research : official journal of the International Society for Autism Research. Vol. 8, 82-93. Published, 02/01/2015.
  • Nicholas Lange, Brittany G Travers, Erin D Bigler, Molly BD Prigge, Alyson L Froehlich, Jared A Nielsen, Annahir N Cariello, Brandon A Zielinski, Jeffrey S Anderson, P Thomas Fletcher, Andrew A Alexander, Janet E Lainhart, Longitudinal Volumetric Brain Changes in Autism Spectrum Disorder Ages 6–35 Years, Autism Research, 2014. Published, 12/2014.
  • Wei Liu, Suyash P Awate, Jeffrey S Anderson, P Thomas Fletcher, A functional network estimation method of resting-state fMRI using a hierarchical Markov random field, NeuroImage, vol. 100, pp. 520-534, 2014. Published, 10/2014.
  • Jacob Hinkle, P Thomas Fletcher, Sarang Joshi, Intrinsic polynomials for regression on Riemannian manifolds, Journal of Mathematical Imaging and Vision, 50(1-2), pp. 32-52, 2014. Published, 09/2014.
  • Valerie A Cardenas, Duygu Tosun, Linda L Chao, P Thomas Fletcher, Sarang Joshi, Michael W Weiner, Norbert Schuff, Voxel‐Wise Co‐analysis of Macro‐and Microstructural Brain Alteration in Mild Cognitive Impairment and Alzheimer's Disease Using Anatomical and Diffusion MRI, Journal of Neuroimaging, 24 (5), pp. 435-443. Published, 09/2014.
  • Neda Sadeghi, P Thomas Fletcher, Marcel Prastawa, John H Gilmore, Guido Gerig, Subject-Specific Prediction Using Nonlinear Population Modeling: Application to Early Brain Maturation from DTI, Medical Image Computing and Computer-Assisted Intervention–MICCAI 2014, pp. 33-40, 2014. Published, 09/2014.
  • Yen-Yun Yu, P Thomas Fletcher, Suyash P Awate, Hierarchical Bayesian Modeling, Estimation, and Sampling for Multigroup Shape Analysis, Medical Image Computing and Computer-Assisted Intervention–MICCAI 2014, pp. 9-16, 2014. Published, 09/2014.
  • Miaomiao Zhang, P Thomas Fletcher, Bayesian Principal Geodesic Analysis in Diffeomorphic Image Registration, Medical Image Computing and Computer-Assisted Intervention–MICCAI 2014, pp. 121-128, 2014. Published, 09/2014.
  • Prasanna Muralidharan, James Fishbaugh, Hans J Johnson, Stanley Durrleman, Jane S Paulsen, Guido Gerig, P Thomas Fletcher, Diffeomorphic Shape Trajectories for Improved Longitudinal Segmentation and Statistics, Medical Image Computing and Computer-Assisted Intervention–MICCAI 2014, pp. 49-56, 2014. Published, 09/2014.
  • Brandon A Zielinski, Molly BD Prigge, Jared A Nielsen, Alyson L Froehlich, Tracy J Abildskov, Jeffrey S Anderson, P Thomas Fletcher, Kristen M Zygmunt, Brittany G Travers, Nicholas Lange, Andrew L Alexander, Erin D Bigler, Janet E Lainhart, Longitudinal changes in cortical thickness in autism and typical development, Brain, 137 (6), pp. 1799-1812, 2014. Published, 06/2014.
  • Nikhil Singh, P Thomas Fletcher, J Samuel Preston, Richard D King, JS Marron, Michael W Weiner, Sarang Joshi, Alzheimer’s Disease Neuroimaging Initiative (ADNI), Quantifying anatomical shape variations in neurological disorders, Medical image analysis, 18 (3), pp. 616-633, 2014. Published, 04/2014.
  • Bo Wang, Wei Liu, Marcel Prastawa, Andrei Irima, Paul M Vespa, John D van Horn, P Thomas Fletcher, Guido Gerig, 4D active cut: An interactive tool for pathological anatomy modeling, 2014 IEEE 11th International Symposium on Biomedical Imaging (ISBI), pp. 529-532, 2014. Published, 04/2014.
  • Nikhil Singh, Jacob Hinkle, Sarang Joshi, P Thomas Fletcher, An efficient parallel algorithm for hierarchical geodesic models in diffeomorphisms, 2014 IEEE 11th International Symposium on Biomedical Imaging (ISBI), pp. 341-344, 2014. Published, 04/2014.
  • Anuja Sharma, P Thomas Fletcher, John H Gilmore, Maria L Escolar, Aditya Gupta, Martin Styner, Guido Gerig, Parametric regression scheme for distributions: Analysis of DTI fiber tract diffusion changes in early brain development, 2014 IEEE 11th International Symposium on Biomedical Imaging (ISBI), pp. 559-562, 2014. Published, 04/2014.
  • Jared A Nielsen, Brandon A Zielinski, P Thomas Fletcher, Andrew L Alexander, Nicholas Lange, Erin D Bigler, Janet E Lainhart, Jeffrey S Anderson, Abnormal lateralization of functional connectivity between language and default mode regions in autism, Molecular autism, 5 (8), pp. 1-11, 2014. Published, 02/2014.
  • Xiang Hao, Kristen Zygmunt, Ross T Whitaker, P Thomas Fletcher, Improved segmentation of white matter tracts with adaptive Riemannian metrics, Medical image analysis, 18 (1), pp. 161-175, 2014. Published, 01/2014.
  • N Sadeghi, M Prastawa, PT Fletcher, J Wolff, JH Gilmore, G Gerig, Regional characterization of longitudinal DT-MRI to study white matter maturation of the early developing brain, NeuroImage, 2012. Published, 12/2012.
  • Brandon A Zielinski, Jeffrey S Anderson, Alyson L Froehlich, Molly BD Prigge, Jared A Nielsen, Jason R Cooperrider, Annahir N Cariello, P Thomas Fletcher, Andrew L Alexander, Nicholas Lange, Erin D Bigler, Janet E Lainhart, scMRI Reveals Large-Scale Brain Network Abnormalities in Autism, PloS one, 7(11), 2012. Published, 11/2012.
  • Nikhill Singh, Angela Y. Wang, Preethi Sankaranarayanan, P. Thomas Fletcher and Sarang Joshi. Genetic, Structural and Functional Imaging Biomarkers for Early Detection of Conversion from MCI to AD., Medical Image Computing and Computer-Assisted Intervention (MICCAI), 2012. Published, 09/2012.
  • Wei Liu, Suyash P. Awate, and P. Thomas Fletcher. Group Analysis of Resting-State fMRI by Hierarchical Markov Random Fields, Medical Image Computing and Computer-Assisted Intervention (MICCAI), 2012. Published, 09/2012.
  • Hinkle, J., Muralidharan, P., Fletcher, P.T., Joshi, S., Polynomial Regression on Rie- mannian Manifolds, European Conference on Computer Vision (ECCV), 2012. Published, 08/2012.
  • Muralidharan, P., Fletcher P.T., Sasaki metrics for analysis of longitudinal data on manifolds, IEEE Conference on Computer Vision and Pattern Recognition (CVPR), 2012. Published, 07/2012.
  • Jeffrey S Anderson, Jared A Nielsen, Alyson L Froehlich, Molly B DuBray, T Jason Druzgal, Annahir N Cariello, Jason R Cooperrider, Brandon A Zielinski, Caitlin Ravichandran, P Thomas Fletcher, Andrew L Alexander, Erin D Bigler, Nicholas Lange, Janet E Lainhart, Functional connectivity magnetic resonance imaging classification of autism, Brain, 2011. Published, 10/01/2011.
  • Pizer, S, Han, Q, Joshi, S, Fletcher, PT, Yushkevich, PA, Thall, A. Synthesis, Deformation, and Statistics of 3D Objects via M-reps. In Medial Representations Mathematics, Algorithms and Applications, chp. 8, Springer, 2009. Published, 2009.
  • Datar, M, Cates, J, Fletcher, PT, Gouttard, S, Gerig, G, Whitaker, R, Particle Based Shape Regression of Open Surfaces with Applications to Developmental Neuroimaging, Medical Image Computing and Computer-Assisted Intervention (MICCAI), 2009. Published, 2009.
  • Tao, R, Fletcher, PT, Gerber, S, Whitaker, R. A Variational Image-Based Approach to the Correction of Susceptibility Artifacts in the Alignment of Diffusion Weighted and Structural MRI, Information Processing in Medical Imaging (IPMI), 2009. Published, 2009.
  • Pizer, S, Styner, M, Terriberry, T, Broadhurst, R, Joshi, S, Chaney, E, Fletcher, PT. Statistical Applications with Deformable M-Reps. In Medial Representations Mathematics, Algorithms and Applications, chp. 9, Springer, 2009. Published, 2009.
  • Fletcher, PT, Venkatasubramanian, S, Joshi, S. The geometric median on Riemannian manifolds with application to robust atlas estimation, NeuroImage, Volume 45, Issue 1, Supplement 1, March 2009, pp. S143–S152. Published, 2009.
  • Goodlett, CB, Fletcher, PT, Gilmore, JH, Gerig, G. Group analysis of DTI fiber tract statistics with application to neurodevelopment, NeuroImage, Volume 45, Issue 1, Supplement 1, March 2009, pp. S133–S142. Published, 2009.
  • Oguz, I, Cates, J, Whitaker, R, Fletcher, PT, Niethammer, M, Styner, M, Cortical Correspondence with Probabilistic Fiber Connectivity, Information Processing in Medical Imaging (IPMI), 2009. Published, 2009.
  • Hinkle, J, Fletcher, PT, Wang, B, Salter, W, Joshi, S. 4D MAP Image Reconstruction Incorporating Organ Motion, Information Processing in Medical Imaging (IPMI), 2009. Published, 2009.
  • Foster, N.L., Wang, A.Y., Tasdizen, T., Fletcher, P.T., Hoffman, J.M., Koeppe, R.A. Realizing the potential of positron emission tomography with 18F-fluorodeoxyglucose to improve the treatment of Alzheimer's disease, Alzheimer's and Dementia, vol. 4, no. 1, suppl. 1, pp. S29-S36, 2008. Published, 2008.
  • Jurrus, E., Hardy, M., Tasdizen, T., Fletcher, P.T., Koshevoy, P., Chien, C.-B., Denk, W., Whitaker, R. Axon tracking in serial block-face scanning electron microscopy, Medical Image Analysis, Vol. 13, No. 1, pp. 180-188, 2008. Published, 2008.

Presentations

  • BIRS Workshop on Geometry for Anatomy, Banff, Alberta, Invited Talk on "Geodesic Regression on Shape Manifolds", August, 2011. Invited Talk/Keynote, Presented, 08/2011.
  • Fletcher, PT, Hao, X, Zygmunt, K, DuBray, MB, Froelich, A, Lange, N, Lainhart JE. Longitudinal Analysis of the White Matter Microstructure of the Arcuate Fasciculus in Autism, International Meeting for Autism Research (IMFAR), 2011. Other, Presented, 05/2011.
  • Dagstuhl Workshop on Innovations for Shape Analysis, Dagstuhl, Germany, Invited Talk on "Geodesic Regression on Shape Manifolds", April, 2011. Invited Talk/Keynote, Presented, 04/2011.
  • P. Thomas Fletcher, John Moeller, Jeff Phillips and Suresh Venkatasubramanian, Computing Hulls in Positive Definite Space, 19th Fall Workshop on Computational Geometry. Conference Paper, Refereed, Presented, 2009.
  • Massachusetts Institute of Technology, Computer Science and Artificial Intelligence Laboratory, Invited Talk on "Robust Statistics on Riemannian Manifolds". Invited Talk/Keynote, Presented, 2009.
  • Summer School on Manifold Learning in Image and Signal Analysis, Ven, Sweden, Invited lecture on “Statistics on Manifolds”. Invited Talk/Keynote, Presented, 2009.
  • Fletcher, P.T., Venkatasubramanian, S., Joshi, S. Robust statistics on Riemannian manifolds via the geometric median, to appear IEEE Conference on Computer Vision and Pattern Recognition (CVPR), 2008. Conference Paper, Other, 2008.
  • Cates, J., Fletcher, P.T., Warnock, Z., Whitaker, R. A shape analysis framework for small animal phenotyping with application to mice with a targeted disruption of HoxD11, IEEE International Symposium on Biomedical Imaging (ISBI), 2008. Conference Paper, Other, 2008.
  • Cates, J., Fletcher, P.T., Whitaker, R. A hypothesis testing framework for high-dimensional shape models. MICCAI Workshop on Mathematical Foundations of Computational Anatomy (MFCA), 2008. Conference Paper, Other, 2008.
  • Goodlett, C.B., Fletcher, P.T., Gilmore, J.H., Gerig, G. Group Statistics of DTI Fiber Bundles Using Spatial Functions of Tensor Measures. Medical Image Computing and Computer-Assisted Intervention (MICCAI), Springer-Verlag LNCS vol. 5241, pp. 1068-1075, 2008. Conference Paper, Other, 2008.
  • Cates, J., Fletcher, P.T., Styner, M., Hazlett, H., Whitaker, R.T. Particle-Based Shape Analysis of Multi-Object Complexes, In Proceedings of the 11th International Conference on Medical Image Computing and Computer Assisted Intervention (MICCAI '08), pp. 477-485, 2008. Conference Paper, Other, 2008.
  • Oguz, I., Cates, J., Fletcher, P.T., Whitaker, R., Cool, D., Aylward, S., Styner, M. Entropy-based particle systems and local features for cortical correspondence optimization, IEEE International Symposium on Biomedical Imaging (ISBI), 2008. Conference Paper, Other, 2008.
  • Tao, R., Fletcher, P.T., Whitaker, R. A Framework for Joint Analysis of Structural and Diffusion MRI, MICCAI Workshop on Computational Diffusion MRI (CDMRI), 2008. Conference Paper, Other, 2008.
  • Bioimaging Research Center, University of Georgia, "Statistics of Anatomy for Multimodal Image Analysis", March 2008. Invited Talk/Keynote, Presented, 2008.
  • Hausdorff Center for Mathematics, Bonn, Germany, Invited talk at the Workshop on Geometry and Statistics of Shapes, "Robust Statistics on Riemannian Manifolds via the Geometric Median", June 2008. Invited Talk/Keynote, Presented, 2008.
  • MICCAI Workshop on Computational Diffusion MRI, New York, NY, Invited talk on "Volumetric Segmentation and Tract-Based Statistics of White Matter Pathways", August 2008. Invited Talk/Keynote, Presented, 2008.
  • Department of Radiology, University of Pennsylvania, "Statistics of Anatomy for Multimodal Image Analysis", March 2008. Invited Talk/Keynote, Presented, 2008.
  • All-Hands Meeting, NIH Roadmap National Centers for Biomedical Computing (NCBC), "Statistics of Anatomy for Multimodal Image Analysis", August 2008. Invited Talk/Keynote, Presented, 2008.