Gary E. Christensen

Gary-Christensen@Uiowa.Edu

Associate Professor of Electrical and Computer Engineering,
and Radiation Oncology

Affiliations: The University of Iowa College of Engineering
Iowa Institute for Biomedical Imaging
Iowa Comprehensive Lung Imaging Center
Holden Comprehensive Cancer Center
Home
Teaching
Research
Publications
Students
NIREP
CEIG

Selected Journal and Conference Papers:

  1. RE Morely, GE Christensen, TJ Sullivan, O Kamin. The design of a bit-serial coprocessor to perform multiplication and division on a massively parallel architecture. Frontiers of Massively Parallel Computation, IEEE Computer Society Press, Washington, October 1988, pp. 419-422.
  2. RE Morely, GE Christensen, TJ Sullivan. The design of a bit-serial coprocessor to perform multiplication and division on a massively parallel architecture. Systolic Array Processors, Prentice Hall, New York, 1989, pp. 497-503.
  3. U Grenander, MI Miller, GE Christensen. Deformable anatomical data bases using global shape models: A position paper for the 1992 electronic imaging of the human body workshop. Proceedings of the Cooperative Working Group on Whole Body 3-D Electronic Imaging of the Human Body, March 1992.
  4. GE Christensen, RD Rabbit, MI Miller. A deformable neuroanatomy textbook based on viscous fluid mechanics. Invited paper. In Prince and Runolfsson, editors, Proceedings of the 1993 Conference on Information Sciences and Systems, Johns Hopkins University, March 24-26, 1993, pp. 211-216.
  5. MI Miller, GE Christensen, Y Amit, U Grenander. Mathematical textbook of deformable neuroanatomies. Proceedings of the National Academy of Sciences, December 1993, 90(24), pp. 11944-11948.
  6. GE Christensen, Rabbit, RD, MI Miller. 3D brain mapping using a deformable neuroanatomy. Physics in Medicine and Biology, March 1994, (39) pp. 609-618.
  7. GE Christensen. Deformable shape models for anatomy. Electrical Engineering D.Sc. Dissertation, Washington University, St. Louis, Missouri, August 1994.
  8. JW Haller, GE Christensen, MI Miller, M Gado, D McKeel, JG Csernansky, MW Vannier. A comparison of automated and manual segmentation of hippocampus MR images. Image Processing, Loew, editor, Proceedings SPIE 2434, 1995, pp. 206-215.
  9. GE Christensen, Rabbit, RD, MI Miller, SC Joshi, U Grenander, T Coogan, DC Van Essen. Topological properties of smooth anatomic maps. In Bizais, Braillot, and Di Paola, editors, Information Processing in Medical Imaging, Kluwer Academic Publishers, Boston, 1995, (3) pp. 101-112.
  10. GE Christensen, MI Miller, JL Marsh, MW Vannier. Automatic Analysis of Medical Images Using a Deformable Textbook. Computer Assisted Radiology , Lemke, Inamura, Jaffe, and Vannier, editors, Springer Verlag, Berlin, June, 1995, pp. 146-151.
  11. JW Haller, GE Christensen, SC Joshi, MI Miller, MW Vannier. Digital Atlas-based Segmentation of the Hippocampus. Computer Assisted Radiology , Lemke, Inamura, Jaffe, and Vannier, editors, Springer Verlag, Berlin, June, 1995, pp. 152-157.
  12. RD Rabbitt, JA Wiess, GE Christensen, Mapping Inter-subject Variations in Tissue Geometry. ASME Summer Bioengineering Conference, Beaver Creek, Colorado, June, 1995.
  13. SC Joshi, MI Miller, GE Christensen, T Coogan, U Grenander. The generalized Dirichlet problem for mapping brain manifolds. Proceedings of SPIE's 1995 Geometric Methods in Applied Imaging, San Diego, California, July 9-14, 1995.
  14. RD Rabbitt, J Wiess, GE Christensen, MI Miller. Mapping of hyperelastic deformable templates. Proceedings of SPIE's 1995 Geometric Methods in Applied Imaging, San Diego, California, July 9-14, 1995.
  15. GE Christensen, MI Miller, U Grenander, MW Vannier. Individualizing Neuroanatomical Atlases Using a Massively Parallel Computer. IEEE Computer, January 1996, pp. 32-38.
  16. JW Haller, GE Christensen, SC Joshi, JW Newcomer, MI Miller, JG Csernansky, MW Vannier. Hippocampal MR Morphometry by Pattern Matching. Radiology, 1996, (199) pp. 787-791.
  17. GE Christensen, AA Kane, JL Marsh, MW Vannier. Synthesis of an Individualized Cranial Atlas with Dysmorphic Shape. IEEE Proceedings of Mathematical Methods in Biomedical Image Analysis, June, 1996, pp. 309-318.
  18. GE Christensen, AA Kane, JL Marsh, MW Vannier. A 3D Deformable Infant CT Atlas, CAR '96: Computer Assisted Radiology, eds. Lemke, Vannier, Inamura, and Farman, Elsevier, New York, June, 1996, pp. 847-852.
  19. GE Christensen, RD Rabbit, MI Miller. Deformable Templates Using Large Deformation Kinematics. IEEE Transactions on Image Processing, 5(10), 1996, pp. 1435-1447.
  20. YI Sheline, KJ Black, DY Lin, GE Christensen, MH Gado, BS Brunsden, and MW Vannier. Stereological MRI Volumetry of the Frontal Lobe. Psychiatry Research: Neuroimaging, 67(3), Oct., 1996, pp. 203-214.
  21. AA Kane, LJ Lo, GE Christensen, MW Vannier, JL Marsh. Relationship between Bone and Muscles of Mastication in Hemifacial Microsomia, Plastic and Reconstructive Surgery, 99, 1997, pp. 990-999.
  22. MW Vannier, JL Marsh, G Wang, GE Christensen, and AA Kane. Surgical Imaging Systems. Surgical Technology International V, 1997, pp. 33-1 to 33-7.
  23. JW Haller, A Banerjee, GE Christensen, M Gado, SC Joshi, MI Miller, Y Sheline, MW Vannier, JG Csernansky. 3D Hippocampal Morphometry by High Dimensional Transformation of a Neuroanatomical Atlas. Radiology 202(2), Feb. 1997, pp. 504-510.
  24. GE Christensen, SC Joshi, and MI Miller. Volumetric Transformation of Brain Anatomy. IEEE Transactions on Medical Imaging. 16(6), Dec. 1997, pp. 864-877.
  25. GE Christensen, MIMD vs. SIMD Parallel Processing: A Case Study in 3D Medical Image Registration. Parallel Computing 24, 1998, pp. 1369-1383.
  26. GE Christensen, HJ Johnson, JW Haller, MW Vannier, JL Marsh Synthesizing average 3D anatomical shapes using deformable templates, Medical Imaging 1999: Image Processing, ed. KM Hanson, SPIE 3661, 1999, pp. 574-582.
  27. GE Christensen, Consistent Linear-Elastic Transformations for Image Matching, Information Processing in Medical Imaging, LCNS 1613, Springer-Verlag, 1999, pp. 224-237.
  28. GE Christensen, P Yin, MW Vannier, KSC Chao, JL Dempsey, JF Williamson. Large-deformation image registration using fluid landmarks, Image Analysis and Interpretation, 2000. Proceedings. 4th IEEE Southwest Symposium , 2000, pp. 269 -273.
  29. GE Christensen, HJ Johnson, Consistent Image Registration, IEEE Transactions on Medical Imaging. 20(7), July 2001, pp. 568-582.
  30. GE Christensen, B Carlson, KSC Chao, P Yin, PW Grigsby, K Nguyen, JF Dempsey, FA Lerma, KT Bae, MW Vannier, JF Williamson, Image-Based Dose Planning of Intracavitary Brachytherapy: Registration of Serial Imaging Studies using Deformable Anatomic Templates, International Journal of Radiation, Oncology, Biology, and Physics. 51(1), 2001, pp. 227-243.
  31. CA Perlyn, JL Marsh, MW Vannier, AA Kane, P Koppel, KW Clark, GE Christensen, R Knapp, LJ Lo, D Govier, The Craniofacial Anomalies Archive at St. Louis Children's Hospital: 20 years of Craniofacial Imaging Experience. Plastic and Reconstructive Surgery. 108(7), 2001, pp. 1862-1870.
  32. GE Christensen, J He, Consistent Nonlinear Elastic Image Registration, IEEE Proceedings of Mathematical Methods in Biomedical Image Analysis, Kauai, Hawaii. Dec. 2001, pp. 37-43.
  33. HJ Johnson, GE Christensen, Consistent Landmark and Intensity-based Image Registration, IEEE Transactions on Medical Imaging, 21(5), 2002, pp. 450-461.
  34. GE Christensen, HJ Johnson, Invertibility and Transitivity Analysis for Nonrigid Image Registration, Journal of Electronic Imaging, 12(1) January, 2003, pp. 106-117.
  35. B Li, GE Christensen, G McLennan, EA Hoffman, JM Reinhardt, Establishing a normative atlas of the human lung: Inter-subject warping and registration of volumetric CT, Academic Radiology, 10(3) March, 2003, pp. 255-265.
  36. VA Magnotta, J Bockholt, HJ Johnson, GE Christensen, NC Andreasen, Subcortical, Cerebellar and MR Based Consistent Brain Image Registration, NeuroImage, 19(2), 2003, pp. 233-245.
  37. P Hellier, C Barillot. I Corouge, B Gibaud, G Le Boualher, L Collins, A Evans, G Malandain, N Ayache, GE Christensen, HJ Johnson, Retrospective Evaluation of Inter-subject Brain Registration, IEEE Transactions on Medical Imaging, 22(9), 2003, pp. 1120-1130.
  38. DA Low, M Nystrom, E Kalinin, P Parikh, JF Dempsey, JD Bradley, SH Wahab, T Islam, GE Christensen, D Politte, BWhiting, A Method for the Reconstruction of 4-Dimensional Gated CT Scans During Free Breathing, Medical Physics, 30(6), 2003, pp. 1254-1263.
  39. X Geng, D Kumar, GE Christensen, MW Vannier, Inverse Consistent Image Registration of MR Brain Scans: Handedness in Normal Adult Males, In Maintz and Gee, editors, Proceedings of the 2nd International Workshop on Biomedical Image Registration, June 2003, LCNS 2717, Springer-Verlag, Berlin, pp. 71-80.
  40. D Kumar, X Geng, GE Christensen, MW Vannier, Characterizing Shape Differences Between Phantom Image Populations Via Multivariate Statistical Analysis of Inverse Consistent Transformations, In Maintz and Gee, editors, Proceedings of the 2nd International Workshop on Biomedical Image Registration, 2003, LCNS 2717, Springer-Verlag, Berlin, pp. 367-376.
  41. J He, GE Christensen, Large Deformation Inverse Consistent Elastic Image Registration, In Taylor and Noble, editors, Information Processing in Medical Imaging, Lecture Notes in Computer Science, July, 2003, pp. 438-449.
  42. GE Christensen, J He, JA Dill, JT Rubinstein, MW Vannier, G Wang, Automatic Measurement of the Labyrinth Using Image Registration and a Deformable Inner Ear Atlas, Academic Radiology, 10(9), Sept., 2003, pp. 988-999.
  43. EA Hoffman, AV Clough, GE Christensen, CL Lin, G McLennan, JM Reinhardt, BA Simon, M Sonka, MH Tawhai, EJR van Beek, G Wang, The comprehensive imaging-based analysis of the lung: A forum for team science, Academic Radiology, 11(12), Dec., 2004, pp. 1370-1380.
  44. W Lu, P Parikh, I El Naqa, M Nystrom, J Hubenschmidt, S Wahab, S Mutic, A Sing, GE Christensen, JD Bradley, DA Low, Quantitation of the four-dimensional computed tomography process for lung cancer patients, Medical Physics, 32(4), 2005, pp. 890-901.
  45. BA Simon, GE Christensen, DA Low, JM Reinhardt, CT Studies of Lung Mechanics, Proc Am Thorac Soc, 2, 2005, pp. 506-507, 517-521.
  46. X Geng, D Kumar, GE Christensen, Transitive Inverse-Consistent Manifold Registration, 19th International Conference on Information Processing in Medical Imaging, IPMI 2005, 2005, pp. 468-479.
  47. GE Christensen, HJ Johnson, MW Vannier, Synthesizing Average 3D Anatomical Shapes, NeuroImage, 32, 2006, pp. 146-158.
  48. D Kumar, X Geng, EA Hoffman, GE Christensen, BICIR: Boundary-Constrained Inverse Consistent Image Registration Using WEB-Splines, Mathematical Methods in Biomedical Image Analysis, 2006.
  49. TC Ryken, BD Owen, GE Christensen, JM Reinhardt, Rapid prototype patient specific drill-template for cervical pedicle screw placement. Computer Aided Surgery. 2007 12(5):303-8.
  50. GE Christensen, JH Song, W Lu, I El Naqa, DA Low, Tracking Lung Motion with Inverse Consistent Image Registration. Med Phys. 2007 34(6):2155-63.
  51. JM Reinhardt, GE Christensen, EA Hoffman, K Ding, K Cao, Registration-derived estimates of local lung expansion as surrogates for regional ventilation, Information Processing in Medical Imaging 2007.
  52. JM Reinhardt, K Ding, K., K Cao, GE Christensen, EA Hoffman, SV Bodas, Registration-based estimates of local lung tissue expansion compared to xenon-CT measures of specific ventilation, Medical Image Analysis, Accepted.
  53. B Li, GE Christensen, EA Hoffman, G McLennan, JM Reinhardt, The Construction of a Normative Human Lung Atlas by Inter-Subject Registration of CT Images, Medical Physics, Accepted.

Patents:

  1. MI Miller, GE Christensen, SC Joshi, U Grenander. Method and Apparatus for Image Registration. United States, patent number 6,009,212. Issued 12/28/99.
  2. MI Miller, GE Christensen, SC Joshi. Rapid Convolution Based Large Deformation Image Matching via Landmark and Volume Imagery. United States, patent number 6,226,418. Issued 5/1/01.
  3. MI Miller, GE Christensen, SC Joshi. Rapid Convolution Based Large Deformation Image Matching via Landmark and Volume Imagery. United States, patent number 6,408,107. Issued 6/18/02.
  4. GE Christensen, Method and Apparatus for Generating Consistent Image Registration. United States, patent number 6,611,615. Issued 8/26/03.

 

Gary E. Christensen
Dept. of Electrical and Computer Engineering
The University of Iowa
4016 SC, Iowa City IA 52242, USA 

e-mail: gary-christensen@uiowa.edu
phone: (319)-335-6055
fax: (319)-335-6028
web site: http://www.engieering.uiowa.edu/~gec/