Kyle Champley :: Computed Tomography (CT)



    My research interest is in Computed Tomography (CT), especially in medical imaging. The most common tomographic medical imaging devises are x-ray CT, Single Photon Emission Computed Tomography (SPECT), and Positron Emission Tomography (PET). In x-ray CT, a patient is irradiated with x-rays to determine the tissue attenuation coefficients which give the physician anatomical information of the patient. In contrast, PET and SPECT employ the use of radiotracers injected into the patient to measure functional information of a patient to access the physiology and patho-physiology.

I am most interested with the mathematical aspects of CT, including such things as analytical image reconstruction algorithms and statistical estimation algorithms.

Currently I work at the General Electric Global Research Center in Niskayuna, NY as a CT image reconstruction scientist.

Previously I was a student of Paul Kinahan and Thomas Lewellen at the Imaging Research Laboratory at the University of Washington.

Below you will find a list of my publications and links to useful notes that I have compiled.



Education
> Ph.D. in Electrical Engineering, University of Washington, 2010     dissertation
> M.S. in Electrical Engineering, University of Washington, 2008
> M.S. in Mathematics, Oregon State University, 2004     thesis
> B.S. in Mathematics/ Computer Science, Western Washington University, 2001



Peer-Reviewed Publications
  1. Raymond Raylman, Stan Majewski, Mark Smith, James Proffitt, William Hammond, Amarnath Srinivasan, John McKisson, Vladimir Popov, Andrew Weisenberger, Clif- ford Judy, Brian Kross, Srikanth Ramasubramanian, Larry Banta, Paul Kinahan, and Kyle Champley. The positron emission mammography/tomography breast imaging and biopsy system (PEM/PET): design, construction and phantom-based measurements. Phys. Med. Biol., vol. 53, pp. 637-653, 2008.

  2. Kyle Champley, Michel Defrise, Rolf Clackdoyle, Raymond Raylman, Paul Kinahan. Planogram Rebinning with the Frequency-Distance Relationship. IEEE Trans. Med. Imaging., vol. 27, pp. 925-933, 2008.

  3. Kyle Champley, Thomas Lewellen, Lawrence MacDonald, Robert Miyaoka, and Paul Kinahan. Statistical LOR Estimation for High-Resolution dMiCE PET Detector. Phys. Med. Biol., vol. 54, pp. 6369-6382, 2009.

  4. Adam Alessio, Paul Kinahan, Kyle Champley, and James Caldwell. Attenuation- Emission Alignment in Cardiac PET/ CT Based on Consistency Conditions. Medical Physics, vol. 37, pp. 1191-1200, 2010.

  5. Kyle Champley, Raymond Raylman, Paul Kinahan. Advancements to the Planogram Frequency-Distance Rebinning Algorithm. Inverse Problems., vol. 26, pp. 1-28, 2010.

  6. Stanley Gu, Gargi Chakraborty, Kyle Champley, Adam Alessio, Jonathan Claridge, Russel Rockne, Mark Muzi, Kenneth A Krohn, Alexander M Spence, Ellsworth C Alvord, Jr, Alexander RE Anderson, Paul Kinahan, and Kristin R Swanson. Applying a Patient-Specific Bio-Mathematical Model of Glioma Growth to Develop Virtual [18F]-FMISO PET Images. Mathematical Medicine & Biology (submitted) 2010.

  7. Kyle Champley, Thomas Lewellen, Robert Miyaoka, Lawrence MacDonald, and Paul Kinahan. DOI Algorithms for a Quantitative Compact Breast PET Scanner. Medical Physics. (submitted) 2010.



Proceedings of Conferences and Symposia and other Publications
  1. Kyle Champley. SPECT Reconstruction Using the Expectation Maximization Algorithm and an Exact Inversion Formula. Masters Thesis, Oregon State University, 2004.

  2. Raymond Raylman, Stan Majewski, Mark Smith, Brian Kross, Vladimir Popov, James Proffitt, William Hammond, John McKisson, Andrew Weisenberger, Paul Kinahan, and Kyle Champley. Initial testing of a positron emission mammography/tomography (PEM/PET) breast imaging and biopsy device. Journal of Nuclear Medicine, vol. 48, p. 436P. (abstract), 2007.

  3. Champley K, Defrise M, Clackdoyle R, Raylman RR, Kinahan PE. Planogram Rebinning with the Frequency-Distance Relationship. Conference record of the 9th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine, Lindau, Germany, July 9 - 13, pp 314-318, 2007.

  4. T.K. Lewellen, L.R. MacDonald, R.S. Miyaoka, W. McDougald, K. Champley. New Directions for dMiCE a Depth-of-Interaction Detector Design for PET Scanners. IEEE Nuclear Science Symposium and Medical Imaging Conference, pp:3798 - 3802, October 26 - November 3, Honolulu, HI, 2007.

  5. KM Champley, TK Lewellen, LR MacDonald, RS Miyaoka, PE Kinahan. Statistical Three-Dimensional Positioning Algorithm for High-Resolution dMiCE PET Detector. IEEE Nuclear Science Symposium and Medical Imaging Conference, pp:4751 - 4754, October 19-25, Dresden Germany, 2008.

  6. Kyle Champley. Algorithms for High-Resolution Positron Emission Tomography. PhD Dissertation, University of Washington, 2010.



Theorems, Definitions, and other Notes
> Theorems and Definitions of Electrical Engineering

> Theorems and Definitions of Mathematics

> Essential Support of the Fourier Transform of the Parallel-Beam Radon Transform

> Katsevich Inversion Formula for 3-D Helical Tomography

> Multivariable Calculus Course Notes

> Differential Equations Course Notes

> A Random, but Useful Collection of Formulas



PET Simulation, LOR Estimation, and Analytic Image Reconstruction Software
> Source Code
> Software Manual
> Necessary Data Files