Department of Medical Physics
University of Wisconsin School of Medicine and Public Health

Publications & Patents

Below is a list of publications from the CT Diagnostic Imaging Center at UW.

Refereed & Peer Reviewed Publications

Refereed & Peer Reviewed Publications

  1. Y. Li, J. W Garrett1, K. Li, Y. Wu, K. Johnson, S. Schafer, C. Strother and G.-H. Chen, Time-resolved C-arm cone beam CT angiography (TR-CBCTA) imaging from a single short-scan C-arm cone beam CT acquisition with intra-arterial contrast injection, Physics in Medicine & Biology, Vol. 63(7):075001, 2018 [DOI]
  2. Y. Li, M. Speidel, C. Francois, and G.-H. Chen, Radiation dose reduction in CT Myocardial Perfusion Imaging using SMART-RECON, IEEE TMI, Vol. 36(12):2557-2568(2017)
  3. B.J. Walker, J. Radtke, G.-H. Chen, K.W. Eliceiri, T.R. Mackie, A beam optics study of a modular multi-source X-ray tube for novel computed tomography applications, Nuclear Inst. and Methods in Physics Research, A, 868(2017)1-9
  4. Y. Ge, Xu Ji, R. Zhang, K. Li, G.-H. Chen, K-edge energy-based calibration method for photon counting detectors, Phys. Med. Biol. 63 015022(2018)
  5. J. P. Cruz-Bastida, D. Gomez-Cardona, J. Garrett, T. Szczykutowicz, G.-H. Chen, K. Li, Modified ideal observer model (MIOM) for high-contrast and high-spatial resolution CT imaging tasks, Medical Physics Vol. 44, pp 4496-4505, 2017 [DOI]
  6. P. Yang, K. Niu, Y. Wu, T. Struffert, A. Doerfler, P. Holter, B. Aagaard-Kienitz, C. Strother, G.-H. Chen, Evaluation of Collaterals and Clot Burden Using Time-Resolved C-Arm Conebeam CT Angiography in the Angiography Suite: A Feasibility Study, AJNR Am J Neuroradiol 2017;38(4):747-752
  7. X. Ji, Y. Ge, R. Zhang, K. Li, G.-H. Chen, Studies of signal estimation bias in grating-based x-ray multicontrast imaging, Med. Phys., Vol.44 (6), DOI: 10.1002/mp.12235
  8. Y. Chen, A. Budde, K. Li, Y. Li, J. Hsieh, G.-H. Chen, A platform-independent method to reduce CT truncation artifacts using discriminative dictionary representations, Medical Physics Vol. 44, pp. 121–131, 2017 [DOI]
  9. H. Kramer, P. J. Pickhardt, M. A. Kliewer, D. Hernando, G.-H. Chen, J. A. Zagzebski, S. B. Reeder, Accuracy of Liver Fat Quantification With Advanced CT, MRI, and Ultrasound Techniques: Prospective Comparison With MR Spectroscopy, American Journal of Roentgenology:1-9, 2016[DOI]
  10. B. D. Pooler, M. G. Lubner, D. H. Kim, O. T. Chen, K. Li, G.-H. Chen, P. J. Pickhardt, Prospective Evaluation of Reduced Dose Computed Tomography for the Detection of Low-Contrast Liver Lesions: Direct Comparison with Concurrent Standard Dose Imaging, European Radiology, 2016 [DOI]
  11. D. Gomez-Cardona, J. P. Cruz-Bastida, K. Li, A. Budde, J. Hsieh and G.-H. Chen, Impact of bowtie filter and object position on the two-dimensional noise power spectrum of a clinical MDCT system, Medical Physics, Vol. 43, pp. 4495-4506, 2016 [DOI]
  12. Y. Ge, R. Zhang, K. Li, and G.-H. Chen, Improving radiation dose efficiency of X-ray differential phase contrast imaging using an energy-resolving grating interferometer and a novel rank constraint, Optics Express, Vol. 24 (12), pp. 12955-12968, 2016 [DOI]
  13. K. Niu, P. Yang, Y. Wu, T. Struffert, A. Doerfler, S. Schafer, K. Royalty, C. Strotherand, and G.-H. Chen, C-Arm Conebeam CT Perfusion Imaging in the Angiographic Suite: A Comparison with Multidetector CT Perfusion Imaging, American Journal of Neuroradiology, (Epub ahead of print), 2016 [DOI]
  14. J. P. Cruz-Bastida, D. Gomez-Cardona, K. Li, H. Sun, J. Hsieh, T. P. Szczykutowicz, and G.-H. Chen, Hi-Res scan mode in clinical MDCT systems: Experimental assessment of spatial resolution performance, Medical Physics, Vol. 43, pp. 2399, 2016 [DOI]
  15. D. Gomez-Cardona, K. Li, J. Hsieh, M. G. Lubner, P. J. Pickhardt and G.-H. Chen, Can conclusions drawn from phantom-based image noise assessments be generalized to in vivo studies for the nonlinear model-based iterative reconstruction method?, Medical Physics, Vol. 43, pp. 687, 2016[DOI]
  16. P. Bannas, Y. Li, U. Motosugi, K. Li, M. G. Lubne, G.-H. Chen, P. J. Pickhardt, Prior Image Constrained Compressed Sensing Metal Artifact Reduction (PICCS-MAR): 2D and 3D Image Quality Improvement with Hip Prostheses at CT Colonograph, European Radiology, 2015 [DOI]
  17. P. Yang, K. Niu, Y. Wu, T. Struffert, A. Dorfler, S. Schafer, K. Royalty, C. Strother, G.-H. Chen, Time-Resolved C-Arm Computed Tomographic Angiography Derived From Computed Tomographic Perfusion Acquisition: New Capability for One-Stop-Shop Acute Ischemic Stroke Treatment in the Angiosuite, Stroke, Vol 46 2015 [DOI]
  18. X. An, M. S. Brittelle, P. Theriault-Lauzier, J. R. Gord, S. Roy, G.-H. Chen, and S. T. Sanders, Demonstration of temperature imaging by H2O absorption spectroscopy using compressed sensing tomography, Applied Optics, Vol. 54, pp.9190 2015 [DOI]
  19. G.-H. Chen, Y. Li, Synchronized multiartifact reduction with tomographic reconstruction (SMART-RECON): A statistical model based iterative image reconstruction method to eliminate limited-view artifacts and to mitigate the temporal-average artifacts in time-resolved CT, Medical Physics, Vol 42, pp. 4698 2015 [DOI]
  20. D. Gomez-Cardona, S. K. Nagle, K. Li, T. E. Robinson, G.-H. Chen, Influence of radiation dose and reconstruction algorithm in MDCT assessment of airway wall thickness: A phantom study, Medical Physics, Vol. 42, pp. 5919-5927, 2015 [DOI]
  21. J. Garrett, Y. Ge, K. Li, G.-H. Chen, Correction of data truncation artifacts in differential phase contrast (DPC) tomosynthesis imaging, Physics in Medicine and Biology, Vol. 60, pp.7713 2015[DOI]
  22. W. Zhao, K. Niu, S. Schafer and K. Royalty, An indirect transmission measurement-based spectrum estimation method for computed tomography, Phys. Bio. Med., Vol. 60, pp. 339, 2015 [DOI]
  23. K. Li, D. Gomez-Cardona, J. Hsieh, M. G. Lubner, P. J. Pickhardt and G.-H. Chen, Statistical model based iterative reconstruction in clinical CT systems. Part III. Task-based kV/mAs optimization for radiation dose reduction, Medical Physics, Vol. 42, pp. 5209 2015 [DOI]
  24. Lubner M.G., Pooler B.D., Kitchin D.R., Tang J., Li K., Kim D.H., Del Rio A.M., Chen G.-H., Pickhardt P.J., Sub-milliSievert (sub-mSv) CT colonography: a prospective comparison of image quality and polyp conspicuity at reduced-dose versus standard-dose imaging, European Radiology, Vol. 25, pp. 2089-2102 2015 [DOI]
  25. Zhao, W., Brunner, S., Niu, K., Schafer, S., Royalty, K., Chen, G.-H., Patient-specific scatter correction for flat-panel detector-based cone-beam CT imaging, Physics in Medicine and Biology, 2015, Vol. 60, pp. 1339 [DOI]
  26. J. Garrett, Y. Ge, K. Li and G.-H. Chen, Anatomical background noise power spectrum in differential phase contrast and dark field contrast mammograms, Medical Physics, 2014, Vol. 41, pp. 120701 [DOI]
  27. Pooler, B.D., Lubner, M.G., Kim, D.H., Ryckman, E.M., Sivalingam, S., Tang, J., Nakada, S.Y., Chen, G.-H., Pickhardt, P.J., Prospective evaluation of prior image constrained compressed sensing (PICCS) algorithm in abdominal CT: a comparison of reduced dose with standard dose imaging, Abdominal Imaging, 2014 [Pubmed]
  28. Prospective Trial of the Detection of Urolithiasis on Ultralow Dose (Sub mSv) Noncontrast Computerized Tomography: Direct Comparison against Routine Low Dose Reference Standard., Urology, 2014 [Pubmed]
  29. Li, K., Garrett, J., Ge, Y. & Chen, G.-H., Statistical model based iterative reconstruction (MBIR) in clinical CT systems. Part II. Experimental assessment of spatial resolution performance, Medical Physics, 2014, Vol. 41 (7), pp. 071911 [DOI]
  30. Tao, Y., Chen,G.-H., Hacker, T., Raval, A., Van Lysel, M. and Speidel, M., Low dose dynamic CT myocardial perfusion imaging using a statistical iterative reconstruction method, Medical Physics, 2014, Vol. 41 (7), pp. 071914 [DOI]
  31. Ge, Y., Li, K., Garrett, J., Chen, G.-H., Grating based x-ray differential phase contrast imaging without mechanical phase stepping, Optics Express, 2014, Vol. 22 (12), pp. 14246-14252 [DOI]
  32. Li, K., Tang, J. & Chen, G.-H. Statistical model based iterative reconstruction (MBIR) in clinical CT systems: Experimental assessment of noise performance, Medical Physics, 2014, Vol. 41(4), pp. 041906 [DOI] [URL]
  33. Li, K., Ge, Y., Garrett, J., Bevins, N., Zambelli, J. & Chen, G.-H. Grating-based phase contrast tomosynthesis imaging: Proof-of-concept experimental studies, Medical Physics, 2014, Vol. 41(1), pp. 011903 [DOI] [URL]
  34. Li, K., Garrett, J., & Chen, G.-H. Correlation between human observer performance and model observer performance in differential phase contrast CT, Medical Physics, 2013, Vol. 40(11), pp. 111905 [DOI] [URL]
  35. Li, K., Zambelli, J., Bevins, N., Ge, Y., & Chen, G.-H. Spatial resolution characterization of differential phase contrast CT systems via modulation transfer function (MTF) measurements, Physics in Medicine and Biology, 2013, Vol. 58(12), pp. 4119 [DOI] [URL]
  36. Li, K., Bevins, N., Zambelli, J., & Chen, G.-H. Fundamental relationship between the noise properties of grating-based differential phase contrast CT and absorption CT: Theoretical framework using a cascaded system model and experimental validation, Medical Physics, 2013, Vol. 40(2), pp. 021908[DOI] [URL]
  37. Theriault-Lauzier, P. & Chen, G.-H. Characterization of statistical prior image constrained compressed sensing. II. Application to dose reduction, Medical Physics, 2013, Vol. 40(2), pp. 021902 [DOI] [URL]
  38. McCollough, C. H., Chen, G.-H., Kalender, W., Leng, S., Samei, E., Taguchi, K., Wang, G., Yu, L. & Pettigrew, R. I. Achieving routine submillisievert CT scanning: report from the summit on management of radiation dose in CT Radiology, 2012, Vol. 264(2), pp. 567-580 [URL]
  39. Theriault-Lauzier, P. & Chen, G.-H. Characterization of statistical prior image constrained compressed sensing. I. Applications to time-resolved contrast-enhanced CT Medical Physics, AAPM, 2012, Vol. 39(10), pp. 5930-5948 [DOI] [URL]
  40. Pickhardt, P., Lubner, M., Kin, D., Tang, J., Ruma, J., Munoz del Rio, A. & Chen, G.-H. Abdominal CT with model-based iterative reconstruction (MBIR): initial results of a prospective trial comparing ultralow-dose with standard-dose imaging American Journal of Roentgenology, 2012, Vol. 199 [URL]
  41. Artz, N., Hines, C., Brunner, S., Agni, R, Kuhn, J.-P., Roldan-Alzate, A., Chen, G.-H. & Reeder, S. Quantification of hepatic steatosis with dual-energy computed tomography Investigative Radiology, 2012, Vol. 47(10), pp. 603–610 [URL]
  42. Theriault-Lauzier, P., Qi, Z., Zambelli, J., Bevins, N. & Chen, G.-H. Interior tomography in x-ray differential phase contrast CT imaging Physics in Medicine and Biology, 2012, Vol. 57(9), pp. N117 [DOI] [URL]
  43. Theriault-Lauzier, P., Tang, J. & Chen, G.-H. Time-resolved cardiac interventional cone-beam CT reconstruction from fully truncated projections using the prior image constrained compressed sensing (PICCS) algorithm Physics in Medicine and Biology, 2012, Vol. 57(9), pp. 2461 [DOI] [URL]
  44. Theriault-Lauzier, P., Tang, J., Speidel, M.A. & Chen, G.-H. Noise spatial nonuniformity and the impact of statistical image reconstruction in CT myocardial perfusion imaging Medical Physics, AAPM, 2012, Vol. 39(7), pp. 4079-4092 [DOI] [URL]
  45. Bevins, N., Zambelli, J., Li, K., Qi, Z. & Chen, G.-H. Multi-contrast x-ray computed tomography imaging using Talbot-Lau interferometry without phase stepping Med. Phys., 2012, Vol. 39(1), pp. 424-428 [DOI]
  46. Theriault-Lauzier, P., Tang, J. & Chen, G. Prior image constrained compressed sensing: Implementation and performance evaluation Med. Phys., 2012, Vol. 39(1), pp. 66 [DOI]
  47. Chen, G.-H., Theriault-Lauzier, P., Tang, J., Nett, B., Leng, S., Zambelli, J., Qi, Z., Bevins, N., Raval, A., Reeder, S. & Rowley, H. Time-Resolved Interventional Cardiac C-arm Cone-Beam CT: An Application of the PICCS Algorithm Medical Imaging, IEEE Transactions on, 2012, Vol. 31(4), pp. 907 -923 [DOI]
  48. Chen, G.-H., Zambelli, J., Li, K., Bevins, N. & Qi, Z. Scaling law for noise variance and spatial resolution in differential phase contrast computed tomography Med. Phys., 2011, Vol. 38(2), pp. 584-588 [DOI] [URL]
  49. Brunner, S., Nett, B.E., Tolakanahalli, R. & Chen, G.-H. Prior image constrained scatter correction in cone-beam computed tomography image-guided radiation therapy Physics in Medicine and Biology, 2011, Vol. 56(4), pp. 1015 [DOI] [URL]
  50. Lubner, M., Pickhardt, P., Tang, J. & Chen, G. Reduced image noise at low-dose multidetector CT of the abdomen with prior image constrained compressed sensing algorithm Radiology, Radiological Society of North America, 2011, Vol. 260(1), pp. 248-256 [DOI]
  51. Qi, Z. & Chen, G. Extraction of tumor motion trajectories using PICCS-4DCBCT: A validation studyMed. Phys., 2011, Vol. 38, pp. 5530 [DOI]
  52. Qi, Z. & Chen, G. Performance studies of four-dimensional cone beam computed tomography Phys. Med. Biol., IOP Publishing, 2011, Vol. 56, pp. 6709 [DOI]
  53. Chen, G.-H., Zambelli, J., Bevins, N., Qi, Z. & Li, K. X-ray phase sensitive imaging methods: basic physical principles and potential medical applications Curr. Med. Imaging Rev., 2010, Vol. 6(2), pp. 90-99 [URL]
  54. Chen, G.-H., Tang, J., Nett, B., Qi, Z., Leng, S. & Szczykutowicz, T. Prior Image Constrained Compressed Sensing (PICCS) and Applications in X-ray Computed Tomography Curr. Med. Imaging Rev., 2010, Vol. 6(2), pp. 119-134 [URL]
  55. Chen, G.-H., Bevins, N., Zambelli, J. & Qi, Z. Small-angle scattering computed tomography (SAS-CT) using a Talbot-Lau interferometer and a rotating anode x-ray tube: theory and experimentsOpt. Express, 2010, Vol. 18(12), pp. 12960-12970 [DOI] [URL]
  56. Nett, B.E., Brauweiler, R., Kalender, W., Rowley, H. & Chen, G.-H. Perfusion measurements by micro-CT using prior image constrained compressed sensing (PICCS): initial phantom results Phys. Med. Biol., 2010, Vol. 55(8), pp. 2333 [DOI] [URL]
  57. Qi, Z., Zambelli, J., Bevins, N. & Chen, G.-H. Quantitative imaging of electron density and effective atomic number using phase contrast CT Phys. Med. Biol., 2010, Vol. 55, pp. 2669–-2677 [DOI][URL]
  58. Szczykutowicz, T. & Chen, G. Dual energy CT using slow kVp switching acquisition and prior image constrained compressed sensing Phys. Med. Biol., IOP Publishing, 2010, Vol. 55, pp. 6411 [DOI]
  59. Tang, J., Hsieh, J. & Chen, G. Temporal resolution improvement in cardiac CT using PICCS (TRI-PICCS): Performance studies Med. Phys., 2010, Vol. 37, pp. 4377 [DOI]
  60. Zambelli, J., Bevins, N., Qi, Z. & Chen, G.-H. Radiation dose efficiency comparison between differential phase contrast CT and conventional absorption CT Med. Phys., 2010, Vol. 37, pp. 2473-2479 [DOI] [URL]
  61. Chen, G.-H., Tang, J. & Hsieh, J. Temporal resolution improvement using PICCS in MDCT cardiac imaging Med. Phys., 2009, Vol. 36(6), pp. 2130-2135 [DOI] [URL]
  62. Supanich, M., Tao, Y., Nett, B., Pulfer, K., Hsieh, J., Turski, P., Mistretta, C., Rowley, H. & Chen, G.-H. Radiation dose reduction in time-resolved CT angiography using highly constrained back projection reconstruction. Phys. Med. Biol., 2009, Vol. 54(14), pp. 4575-4593 [DOI] [URL]
  63. Tang, J., Nett, B.E. & Chen, G.-H. Performance comparison between total variation (TV)-based compressed sensing and statistical iterative reconstruction algorithms. Phys. Med. Biol., 2009, Vol. 54(19), pp. 5781-5804 [DOI] [URL]
  64. Chen, G.-H. & Qi, Z. Image reconstruction for fan-beam differential phase contrast computed tomography Phys. Med. Biol., 2008, Vol. 53(4), pp. 1015-1025 [DOI] [URL]
  65. Chen, G.-H., Tang, J. & Leng, S. Prior image constrained compressed sensing (PICCS): A method to accurately reconstruct dynamic CT images from highly undersampled projection data sets Med. Phys., AAPM, 2008, Vol. 35(2), pp. 660-663 [DOI] [URL]
  66. Leng, S., Tang, J., Zambelli, J., Nett, B., Tolakanahalli, R. & Chen, G.-H. High temporal resolution and streak-free four-dimensional cone-beam computed tomography Phys. Med. Biol., Department of Medical Physics, University of Wisconsin-Madison, WI 53792-1590, USA., 2008, Vol. 53(20), pp. 5653-5673 [DOI] [URL]
  67. Leng, S., Zambelli, J., Tolakanahalli, R., Nett, B., Munro, P., Star-Lack, J., Paliwal, B. & Chen, G.-H. Streaking artifacts reduction in four-dimensional cone-beam computed tomography Med. Phys., AAPM, 2008, Vol. 35(10), pp. 4649-4659 [DOI] [URL]
  68. Nett, B., Leng, S., Zambelli, J., Reeder, S., Speidel, M. & Chen, G. Temporally Targeted Imaging Method Applied to ECG-Gated Computed Tomography Preliminary Phantom and In Vivo ExperienceAcad. Radiol., 2008, Vol. 15(1), pp. 93-106 [DOI] [URL]
  69. Qi, Z. & Chen, G.-H. Direct Fan-Beam Reconstruction Algorithm via Filtered Backprojection for Differential Phase-Contrast Computed Tomography X-Ray Opt. Instrum., 2008, Vol. 2008, pp. 835172 [DOI] [URL]
  70. Chen, G.-H., Zhuang, T.-L., Leng, S. & Nett, B.E. Cone-beam filtered backprojection image reconstruction using a factorized weighting function Opt. Eng., 2007, Vol. 46(8), pp. 087006 [DOI][URL]
  71. Leng, S., Zhuang, T., Nett, B. & Chen, G. Helical cone-beam computed tomography image reconstruction algorithm for a tilted gantry with N-PI data acquisition Opt. Eng., 2007, Vol. 46, pp. 015004 [DOI] [URL]
  72. Nett, B., Zhuang, T., Leng, S. & Chen, G. Arc based cone-beam reconstruction algorithm using an equal weighting scheme J. X-Ray Sci. Technol., IOS Press, 2007, Vol. 15(1), pp. 19-48 [URL]
  73. Qi, Z. & Chen, G.-H. A local region of interest image reconstruction via filtered backprojection for fan-beam differential phase-contrast computed tomography Phys. Med. Biol., 2007, Vol. 52, pp. N417–N423 [DOI] [URL]
  74. Chen, G.-H., Tokalkanahalli, R., Zhuang, T., Nett, B.E. & Hsieh, J. Development and evaluation of an exact fan-beam reconstruction algorithm using an equal weighting scheme via locally compensated filtered backprojection (LCFBP). Med. Phys., 2006, Vol. 33(2), pp. 475-481 [DOI] [URL]
  75. Zhuang, T. & Chen, G. New families of exact fan-and cone-beam image reconstruction formulaeInverse Probl., Institute of Physics Publishing, 2006, Vol. 22, pp. 991-1006 [DOI] [URL]
  76. Zhuang, T., Nett, B.E., Leng, S. & Chen, G.-H. A shift-invariant filtered backprojection (FBP) cone-beam reconstruction algorithm for the source trajectory of two concentric circles using an equal weighting scheme. Phys. Med. Biol., 2006, Vol. 51(12), pp. 3189-3210 [DOI] [URL]
  77. Chen, G.-H. & Leng, S. A new data consistency condition for fan-beam projection data Med. Phys., AAPM, 2005, Vol. 32(4), pp. 961-967 [DOI] [URL]
  78. Chen, G.-H., Leng, S. & Mistretta, C.A. A novel extension of the parallel-beam projection-slice theorem to divergent fan-beam and cone-beam projections Med. Phys., AAPM, 2005, Vol. 32(3), pp. 654-665 [DOI] [URL]
  79. Leng, S., Zhuang, T., Nett, B.E. & Chen, G.-H. Exact fan-beam image reconstruction algorithm for truncated projection data acquired from an asymmetric half-size detector. Phys. Med. Biol., 2005, Vol. 50(8), pp. 1805-1820 [DOI] [URL]
  80. Zhuang, T., Leng, S., Nett, B.E. & Chen, G.-H. Fan-beam and cone-beam image reconstruction via filtering the backprojection image of differentiated projection data. Phys. Med. Biol., 2004, Vol. 49(24), pp. 5489-5503 [DOI] [URL]
  81. Chen, G.-H. A new framework of image reconstruction from fan beam projections Med. Phys., AAPM, 2003, Vol. 30(6), pp. 1151-1161 [DOI] [URL]
  82. Chen, G.-H. An alternative derivation of Katsevich’s cone-beam reconstruction formula Med. Phys., AAPM, 2003, Vol. 30(12), pp. 3217-3226 [DOI] [URL]

Conference Proceedings

  1. K. Li, G.-H. Chen, Noise characteristics of CT perfusion imaging: How does noise propagate from source images to final perfusion maps?, Proc. SPIE, 9783, 978310 (2016), [DOI]
  2. Y. Ge, R. Zhang, K. Li, G.-H. Chen, X-ray differential phase contrast imaging using a grating interferometer and a single photon counting detector, Proc. SPIE, 9783, 97830M (2016), [DOI]
  3. R. Zhang, B. Qin, Y. Ge, B. Whiting, K. Li, F. Villanueva, G.-H. Chen, Potential use of micorobubles (MBs) as contrast material in x-ray dark field (DF) imaging: How does the DF signal change with the characteristic parameters of the MBs?, Proc. SPIE, 9783, 97830N (2016), [DOI]
  4. Y. Li, K. Niu, K. Li, S. Schafer, K. Royalty, C. Strother, G.-H. Chen, C-arm cone beam CT perfusion imaging using the SMART-RECON algorithm to improve temporal sampling density and temporal resolution, Proc. SPIE, 9783, 97830U (2016), [DOI]
  5. Y. Li, K. Niu, P. Yang, B. Aagaard-Kienitz, D. Niemann, A. Ahmed, C. Strother, G.-H. Chen, Mask free intravenous 3D digital subtraction angiography (IV 3D-DSA) from a single C-arm acquisition,Proc. SPIE, 9783, 97830V (2016), [DOI]
  6. Y. Li, J. Garrett, G.-H. Chen, Reduction of beam hardening artifacts in cone-beam CT imaging via SMART-RECON algorithm, Proc. SPIE, 9783, 97830W (2016), [DOI]
  7. D. Gomez-Cardona, J. P. Cruz-Bastida, K. Li, A. Budde, J. Hsieh, G-H. Chen, Noise power spectrum studies of CT systems with off-centered image object and bowtie filter, Proc. SPIE. 9783, 97833A (2016), [DOI]
  8. Y. Chen, K. Li, Y. Li, J. Hsieh, G-H Chen, Reduction of truncation artifacts in CT images via a discriminative dictionary representation method, Proc. SPIE. 9783, 97831D. (2016), [DOI]
  9. K. Li, D. Gomez-Cardona, M. G. Lubner, P. J. Pickhardt, and G.-H. Chen, Imaging task-based optimal kV and mA selection for CT radiation dose reduction: from filtered backprojection (FBP) to statistical model based iterative reconstruction (MBIR), Proc. SPIE, 9412, 94121M (2015) [DOI]
  10. Y. Ge, W. Zhao, J. Garrett, K. Li, and G.-H. Chen, Absorption imaging performance in a future Talbot-Lau interferometer based breast imaging system, Proc. SPIE, 9412, 94123X (2015) [DOI]
  11. J. Garrett, Y. Ge, K. Li, and G.-H. Chen, Anatomical background noise power spectrum in differential phase contrast breast images, Proc. SPIE, 9412, 94121J (2015) [DOI]
  12. D. Gomez-Cardona, K. Li, M. G. Lubner, P. J. Pickhardt, and G.-H. Chen, Noise performance studies of model-based iterative reconstruction (MBIR) as a function of kV, mA and exposure level: Impact on radiation dose reduction and image quality, Proc. SPIE, 9412, 941238 (2015) [DOI]
  13. Y. Ge, J. Garrett, K. Li, and G.-H. Chen, New signal extraction method in x-ray differential phase contrast imaging with a tilted collinear analyzer grating, Proc. SPIE, 9412, 94120H (2015) [DOI]
  14. J. Garrett, Y. Ge, K. Li, and G.-H. Chen, Methods to mitigate data truncation artifacts in multi-contrast tomosynthesis image reconstructions, Proc. SPIE, 9412, 941225 (2015) [DOI]
  15. Y. Li, K. Niu, and G.-H. Chen, Statistical model based iterative reconstruction in myocardial CT perfusion: exploitation of the low dimensionality of the spatial-temporal image matrix, Proc. SPIE, 9412, 94123N (2015) [DOI]
  16. Y. Li, J. Hsieh, and G.-H. Chen, Low rank approximation based noise reduction in spectral-resolved X-ray imaging using photon counting detector, Proc. SPIE, 9412, 941212 (2015) [DOI]
  17. K. Niu, Y. Li, S. Schafer, K. Royalty, Y. Wu, C. Strother, and G.-H. Chen, Ultra low radiation dose digital subtraction angiography (DSA) imaging using low rank constraint , Proc. SPIE, 9412, 94121O (2015) [DOI]
  18. Yongshuai Ge, Ke Li, Guang-Hong Chen Cramér-Rao lower bound in differential phase contrast imaging and its application in the optimization of data acquisition systems Proc. SPIE 2014 (9033), pp. 90330F [DOI]
  19. Yongshuai Ge, Ke Li, Guang-Hong Chen Statistical signal estimation methods in X-ray differential phase contrast imaging Proc. SPIE 2014 (9033), pp. 90330G [DOI]
  20. Yongshuai Ge, Ke Li, John Garrett, Guang-Hong Chen Fast data acquisition method in X-ray differential phase contrast imaging using a new grating design Proc. SPIE 2014 (9033), pp. 90330B [DOI]
  21. Ke Li, Jie Tang, Guang-Hong Chen Noise performance of statistical model based iterative reconstruction in clinical CT systems Proc. SPIE 2014 (9033), pp. 90335J [DOI]
  22. Yinghua Tao, Jie Tang, Michael Speidel, Guang-Hong Chen Impact of redundant ray weighting on motion artifact in a statistical iterative reconstruction framework Proc. SPIE 2014 (9033), pp. 90332X [DOI]
  23. Yinghua Tao, Michael Speidel, Timothy Szczykutowicz, Guang-Hong Chen Investigation of the potential causes of partial scan artifacts in dynamic CT myocardialperfusion imaging Proc. SPIE 2014 (9033), pp. 90332B [DOI]
  24. Yinsheng Li, Jie Tang, Guang-Hong Chen Impact of norm selections on the performance of four-dimensional cone-beam computed tomography (4DCBCT) using PICCS Proc. SPIE 2014 (9033), pp. 903308 [DOI]
  25. Yinsheng Li, Kai Niu, Jie Tang, Guang-Hong Chen Statistical image reconstruction via denoised ordered-subset statistically penalized algebraic reconstruction technique (DOS-SPART) Proc. SPIE 2014 (9033), pp. 90330U [DOI]
  26. Wei Zhao, Stephen Brunner, Kai Niu, Sebastian Schafer, Kevin Royalty, Guang-Hong Chen A patient-specific scatter artifacts correction method Proc. SPIE 2014 (9033), pp. 903310 [DOI]
  27. Tao, Y., Tang, J., Speidel, M. & Chen, G.-H. Impact of noise level and edge sharpness of a prior image on the performance of Prior Image Constrained Compressed Sensing (PICCS) Proc. SPIE 2013(8668), pp. 86683J [DOI]
  28. Brunner, S., Garrett, J., Li, Y., Tang, J., Plfer, K., Hsieh, J., Rowley, H. & Chen, G.-H. Radiation dose reduction in dual-energy CT using Prior Image Constrained Compressed Sensing: image quality evaluation in virtual monochromatic imaging Proc. SPIE 2013(8668), pp. 866826 [DOI]
  29. Li, Y., Tang, J. & Chen, G.-H. Impact of norm selections on the performance of prior image constrained compressed sensing (PICCS) Proc. SPIE 2013(8668), pp. 86681M [DOI]
  30. Li, Y., Theriault-Lauzier, P., Tang, J. & Chen, G.-H. Bregman regularized statistical image reconstruction method and application to prior image constrained compressed sensing (PICCS) Proc. SPIE 2013(8668), pp. 86683A [DOI]
  31. Niu, K., Tang, J., Royalty, K., Ozkan, O., Strother, C., Aagaard-Kienitz, B., Pulfer, K. & Chen, G.-H. Radiation dose reduction and CNR enhancement in C-arm cone beam CT Proc. SPIE 2013(8668), pp. 86682S [DOI]
  32. Bevins, N.B., Li, K., Zambelli, J.N. & Chen, G.-H. Type II beam hardening artifacts in phase contrast imaging Proc. SPIE 2013(8668), pp. 866816 [DOI]
  33. Theriault-Lauzier, P., Li, Y. & Chen, G.-H. Tradeoff between noise properties and local impulse response in statistical prior image constrained compressed sensing Proc. SPIE 2013(8668), pp. 86681K [DOI]
  34. Niu, K., Li, K., Qi, Z., Bevins, N.B., Zambelli, J.N. & Chen, G.-H. A statistical image reconstruction method to reduce small angle scattering induced streaking artifacts in differential phase contrast CTProc. SPIE 2013(8668), pp. 86684Y [DOI]
  35. Tao, Y., Speidel, M., Lysel, M.A. & Chen, G.-H. Extraction of coronary angiographic information from low tube current HYPR-CT myocardial perfusion scans Proc. SPIE 2013(8668), pp. 866840 [DOI]
  36. Li, K., Bevins, N.B., Zambelli, J.N., Qi, Z. & Chen, G.-H. Detection performance study for cone-beam differential phase contrast CT Proc. SPIE 2013(8313), pp. 83131L [DOI]
  37. Tang, J., Xu, M., Niu, K., Royalty, K., Pulfer, K., Strother, C. & Chen, G.-H. A novel temporal recovery technique to enable cone beam CT perfusion imaging using an interventional C-arm systemProc. SPIE 2013(8668), pp. 86681A [DOI]
  38. Li, K., Garrett, J., Bevins, N.B., Zambelli, J.N. & Chen, G.-H. How to determine detection performance of a DPC-CT system from a conventional cone beam CT system? Proc. SPIE 2013(8668), pp. 866811 [DOI]
  39. Li, K., Bevins, N.B., Zambelli, J.N. & Chen, G.-H. Model observer and human observer performance studies in differential phase contrast CT Proc. SPIE 2013(8668), pp. 866817 [DOI]
  40. Xu, M., Tang, J., Royalty, K. & Chen, G.-H. Technical feasibility of CT perfusion using a C-Arm CBCT system Proc. SPIE 2013(8668), pp. 86681R [DOI]
  41. Li, K., Bevins, N.B., Zambelli, J.N. & Chen, G.-H. Feasibility of differential phase contrast CT for whole body imaging Momose, A. & Yashiro, W. (ed.) AIP Conference Proceedings, AIP, 2012, Vol. 1466(1), pp. 175-180 [DOI] [URL]
  42. Bevins, N.B., Zambelli, J.N., Li, K. & Chen, G.-H. Comparison of phase contrast signal extraction techniques Momose, A. & Yashiro, W. (ed.) AIP Conference Proceedings, AIP, 2012, Vol. 1466(1), pp. 169-174 [DOI] [URL]
  43. Bevins, N., Zambelli, J., Li, K., Qi, Z. & Chen, G.-H. Experimental study of the impact of small-angle scatterers on the x-ray dark field imaging contrast mechanism Proc. SPIE 2012(8313), pp. 83135L [DOI]
  44. Li, K., Bevins, N., Zambelli, J., Qi, Z. & Chen, G.-H. Detection performance study for cone-beam differential phase contrast CT Proc. SPIE 2012(8313), pp. 83131L [DOI]
  45. Li, K., Bevins, N., Zambelli, J. & Chen, G.-H. A new image reconstruction method to improve noise properties in x-ray differential phase contrast computed tomography Proc. SPIE 2012(8313), pp. 83131V [DOI]
  46. Li, K., Bevins, N., Zambelli, J. & Chen, G.-H. Differential phase contrast tomosynthesis imagingProc. SPIE 2012(8313), pp. 83131Z [DOI]
  47. Tang, J., Theriault-Lauzier, P., Qi, Z., Szczykutowicz, T. & Chen, G. New consistency theorem of motion contaminated projection data and applications in motion artifacts correction Proc. SPIE 2012, Vol. 8313, pp. 83131E [DOI]
  48. Theriault-Lauzier, P., Tang, J. & Chen, G. Non-uniform noise spatial distribution in CT myocardial perfusion and a potential solution: statistical image reconstruction Proc. SPIE 2012, Vol. 8313, pp. 831338 [DOI]
  49. Theriault-Lauzier, P., Tang, J. & Chen, G. Prior image constrained compressed sensing: a quantitative performance evaluation Proc. SPIE 2012, Vol. 8313, pp. 83132F [DOI]
  50. Zambelli, J., Li, K., Bevins, N. & Chen, G.-H. Optimization of grating designs for x-ray differential phase contrast imaging Proc. SPIE 2012(8313), pp. 83135B [DOI]
  51. Bevins, N., Zambelli, J., Li, K., Qi, Z. & Chen, G.-H. Beam hardening in x-ray differential phase contrast computed tomography Proc. SPIE, 2011, Vol. 7961(1), pp. 79611H [DOI]
  52. Qi, Z., Thériault-Lauzier, P., Bevins, N., Zambelli, J., Li, K. & Chen, G.-H. Helical x-ray differential phase contrast computed tomography Proc. SPIE 2011, Vol. 7961(1), pp. 79611Q [DOI]
  53. Tang, J., Theriault-Lauzier, P., & Chen, G. Dose reduction using prior image constrained compressed sensing (DR-PICCS) Proc. SPIE 2011, Vol. 7961, pp. 79612K [DOI]
  54. Theriault-Lauzier, P., Tang, J. & Chen, G. Quantitative evaluation method of noise texture for iteratively reconstructed x-ray CT images Proc. SPIE 2011, Vol. 7961, pp. 796135 [DOI]
  55. Zambelli, J., Li, K., Bevins, N., Qi, Z. & Chen, G. Noise characteristics of x-ray differential phase contrast CT Proc. SPIE 2011, Vol. 7961, pp. 79613N [DOI]
  56. Bevins, N., Zambelli, J., Qi, Z. & Chen, G.-H. X-ray dark-field computed tomography using a grating interferometer setup Proc. SPIE 2010, Vol. 7622, pp. 76220P [DOI] [URL]
  57. Nett, B., Tang, J. & Chen, G. GPU implementation of prior image constrained compressed sensing (PICCS) Proc. SPIE 2010, Vol. 7622, pp. 762239 [DOI] [URL]
  58. Qi, Z., Zambelli, J., Bevins, N. & Chen, G.-H. A novel quantitative imaging technique for material differentiation based on differential phase contrast CT Proc. SPIE 2010, Vol. 7622(1), pp. 76220O [DOI] [URL]
  59. Szczykutowicz, T.P., Hsieh, J. & Chen, G.-H. The dependence of image quality on the number of high and low kVp projections in dual energy CT using the prior image constrained compressed sensing (PICCS) algorithm Proc. SPIE 2010, Vol. 7622, pp. 762221 [DOI] [URL]
  60. Tang, J., Hsieh, J. & Chen, G.-H. Performance study of the temporal resolution improvement using prior image constrained compressed sensing (TRI-PICCS) Proc. SPIE 2010, Vol. 7622, pp. 762222 [DOI] [URL]
  61. Theriault-Lauzier, P., Qi, Z., Zambelli, J., Bevins, N. & Chen, G.-H. Accurate Image Reconstruction of a Small ROI using Fully Truncated Data in Differential Phase Contrast Computed TomographyProc. SPIE 2010, Vol. 7622, pp. 76221U [DOI] [URL]
  62. Theriault-Lauzier, P., Tang, J., Qi, Z. & Chen, G.-H. Image reconstruction in cardiac interventions using a small flat-panel detector Proc. SPIE 2010, Vol. 7622, pp. 762228 [DOI] [URL]
  63. Zambelli, J., Bevins, N., Qi, Z. & Chen, G.-H. Measurement of contrast-to-noise ratio for differential phase contrast computed tomography Proc. SPIE 2010, Vol. 7622, pp. 76224C [DOI] [URL]
  64. Chen, G., Tang, J., Nett, B., Leng, S., Zambelli, J., Qi, Z., Bevins, N., Reeder, S. & Rowley, H. High temporal resolution cardiac cone-beam CT using a slowly rotating C-arm gantry Proc. SPIE 2009, Vol. 7258, pp. 72580C [DOI] [URL]
  65. Nett, B., Tang, J., Aagaard-Kienitz, B., Rowley, H. & Chen, G. Low radiation dose C-arm cone-beam CT based on prior image constrained compressed sensing (PICCS): including compensation for image volume mismatch between multiple data acquisitions Proc. SPIE 2009, Vol. 7258, pp. 725803 [DOI] [URL]
  66. Qi, Z., Zambelli, J., Bevins, N. & Chen, G. A novel method to reduce data acquisition time in differential phase contrast computed tomography using compressed sensing Proc. SPIE 2009, Vol. 7258, pp. 72584A [DOI] [URL]
  67. Tang, J., Nett, B. & Chen, G. Performance comparison between compressed sensing and statistical iterative reconstruction algorithms Proc. SPIE 2009, Vol. 7258, pp. 725826 [DOI] [URL]
  68. Tang, J., Hseih, J. & Chen, G.-H. Temporal Resolution Improvement using PICCS in MDCT Cardiac Imaging Proc. Fully 3D 2009, pp. 398-401 [URL]
  69. Chen, G.-H., Tang, J. & Leng, S. Prior Image Constrained Compressed Sensing (PICCS) Proc. SPIE 2008, Vol. 6856, pp. 685618 [DOI] [URL]
  70. Mistretta, C., Wieben, O., Velikina, J., Wu, Y., Johnson, K., Korosec, F., Unal, O., Chen, G., Fain, S., Christian, B., Nalcioglu, O., Kruger, R.A., Block, W., Samsonov, A., Speidel, M., Lysel, M.V., Rowley, H., Supanich, M., Turski, P., Wu, Y., Holmes, J., Kecskemeti, S., Moran, C., O’Halloran, R., Keith, L., Alexander, A., Brodsky, E., Lee, J.E., Hall, T. & Zagzebski, J. HYPR: constrained reconstruction for enhanced SNR in dynamic medical imaging Proc. SPIE 2008, Vol. 6913(1), pp. 691305 [DOI] [URL]
  71. Nett, B., Tang, J., Leng, S. & Chen, G. Tomosynthesis via total variation minimization reconstruction and prior image constrained compressed sensing (PICCS) on a C-arm system Proc. SPIE 2008, Vol. 6913, pp. 69132D [DOI] [URL]
  72. Qi, Z. & Chen, G. An FBP image reconstruction algorithm for x-ray differential phase contrast CTProc. SPIE 2008, Vol. 6913, pp. 69132J [DOI] [URL]
  73. Supanich, M., Rowley, H., Turk, A., Speidel, M., Pulfer, K., Hsieh, J., Chen, G. & Mistretta, C. An acquisition and image reconstruction scheme for reduced x-ray exposure dynamic 3D CTA Proc. SPIE 2008, Vol. 6913(1), pp. 691326 [DOI] [URL]
  74. Zambelli, J., Zhuang, T., Nett, B.E., Riddell, C., Belanger, B. & Chen, G.-H. C-arm based cone-beam CT using a two-concentric-arc source trajectory: system evaluation Proc. SPIE 2008, Vol. 6913(1), pp. 69134U [DOI] [URL]
  75. Zhuang, T., Zambelli, J., Nett, B., Leng, S. & Chen, G.-H. Exact and approximate cone-beam reconstruction algorithms for C-arm based cone-beam CT using a two-concentric-arc source trajectory. Proc. SPIE 2008, Vol. 6913, pp. 691321 [DOI] [URL]
  76. Chen, G.-H. & Qi, Z. Image reconstruction for fan beam differential phase contrast computed tomography Proc. Fully 3D 2007, pp. 116-119 [URL]
  77. Leng, S., Nett, B., Speidel, M. & Chen, G. Motion artifact reduction in fan-beam and cone-beam computed tomography via the fan-beam data consistency condition (FDCC) Proc. SPIE 2007, Vol. 6510, pp. 65101W [DOI] [URL]
  78. Nett, B., Leng, S. & Chen, G. Planar tomosynthesis reconstruction in a parallel-beam framework via virtual object reconstruction Proc. SPIE 2007, Vol. 6510, pp. 651028 [DOI] [URL]
  79. Nett, B., Zambelli, J., Riddell, C., Belanger, B. & Chen, G. Circular tomosynthesis implemented with a clinical interventional flat-panel based C-Arm: initial performance study Proc. SPIE 2007, Vol. 6510, pp. 65101N [DOI] [URL]
  80. Speidel, M., Van Lysel, M., Reeder, S., Supanich, M., Nett, B., Zambelli, J., Chang, S., Hsieh, J., Chen, G. & Mistretta, C. ECG-gated HYPR reconstruction for undersampled CT myocardial perfusion imaging Proc. SPIE 2007, Vol. 6510, pp. 651014 [DOI] [URL]
  81. Velikina, J., Leng, S. & Chen, G. Limited view angle tomographic image reconstruction via total variation minimization Proc. SPIE 2007, Vol. 6510, pp. 651020 [DOI] [URL]
  82. Zambelli, J., Nett, B., Leng, S., Riddell, C., Belanger, B. & Chen, G. Novel C-arm based cone-beam CT using a source trajectory of two concentric arcs Proc. SPIE 2007, Vol. 6510, pp. 65101Q [DOI][URL]
  83. Zhuang, T.-L. & Chen, G.-H. Noise performance study of cone-beam FBP reconstruction algorithms for circle-line source Proc. Fully 3D 2007, pp. 132-135 [URL]
  84. Zhuang, T.-L., Leng, S. & Chen, G.-H. An exact cone-beam reconstruction algorithm for two concentric arcs Proc. Fully 3D 2007, pp. 354-357 [URL]
  85. Chen, G., Siewerdsen, J., Leng, S., Moseley, D., Nett, B., Hsieh, J., Jaffray, D. & Mistretta, C. Guidance for cone-beam CT design: tradeoff between view sampling rate and completeness of scanning trajectories Proc. SPIE 2006, Vol. 6142, pp. 614212 [DOI] [URL]
  86. Chen, G., Zambelli, J., Nett, B., Supanich, M., Riddell, C., Belanger, B. & Mistretta, C. Design and development of C-arm based cone-beam CT for image-guided interventions: initial results Proc. SPIE 2006, Vol. 6142, pp. 614210 [DOI] [URL]
  87. Boutchko, R. Convolution backprojection reconstruction in cone-beam CT for different surface source distributions Proc. Fully 3D 2005, pp. 193-197 [URL]
  88. Chen, G., Tolakanahalli, R., Zhuang, T., Nett, B. & Hsieh, J. Exact fan-beam reconstruction via ramp-filtered backprojection and local compensation Proc. SPIE 2005, Vol. 5745, pp. 1014 [DOI][URL]
  89. Chen, G., Zhuang, T., Leng, S. & Nett, B. A showcase of exact cone-beam image reconstruction algorithms for circle-based trajectories Proc. Fully 3D 2005, pp. 295-299 [URL]
  90. Leng, S., Zhuang, T.-L., Nett, B.E. & Chen, G.-H. Cone-beam image reconstruction algorithm for helical CT with a gantry tilt and beyond 1-PI data acquisition Proc. Fully 3D 2005, pp. 342-346 [URL]
  91. Nett, B.E., Zhuang, T.-L., Chen, G.-H. & Leng, S. A cone-beam FBP reconstruction algorithm for short-scan and super-short scan source trajectories Proc. Fully 3D 2005, pp. 396-400 [URL]
  92. Zhuang, T.-L., Nett, B.E., Leng, S. & Chen, G.-H. A shift-invariant FBP image reconstruction algorithm with variable data usage for helical cone-beam CT Proc. Fully 3D 2005, pp. 337-341 [URL]
  93. Zhuang, T.-L., Nett, B.E. & Chen, G.-H. Image reconstruction via filtered backprojection for cone-beam data for two orthogonal circles using an equal weighting scheme Proc. Fully 3D 2005, pp. 198-202 [URL]
  94. Chen, G.-H. Unification, H-duality, and data truncation in image reconstruction from divergent beam projections Proc. SPIE 2004, Vol. 5535(1), pp. 611-622 [DOI] [URL]
  95. Chen, G.-H., Leng, S. & Mistretta, C.A. A generalized projection-slice theorem for the divergent beam projections Proc. SPIE 2004, Vol. 5535(1), pp. 301-309 [DOI] [URL]
  96. Nett, B.E., Chen, G.-H., Lysel, M.S.V., Betts, T., Speidel, M., Rowley, H.A., Kienitz, B.D.A. & Mistretta, C.A. Investigation of tomosynthetic perfusion measurements using the scanning-beam digital x-ray (SBDX) system Proc. SPIE 2004, Vol. 5535(1), pp. 89-100 [DOI] [URL]
  97. Tolakanahalli, R., Medow, J., Hsieh, J., Chen, G. & Mistretta, C. Reduction of metal artifacts using subtracted CT projection data Proc. SPIE 2004, Vol. 5535, pp. 636 [DOI] [URL]
  98. Zhuang, T., Nett, B., Tang, X. & Chen, G. A cone-beam FBP reconstruction algorithm for short-scan and super-short-scan source trajectories Proc. SPIE 2004, Vol. 5535, pp. 566 [DOI] [URL]

Abstracts

  1. Garrett, J., Tang, J., Burnside, E.S., Garrett, J.B. & Chen, G.-H. Dose Reduction in Digital Breast Tomosynthesis with Prior Image Constrained Compressed Sensing (PICCS) 2012 (RSNA2012 SSE02-03)
  2. Bevins, N., Zambelli, J., Li, K. & Chen, G.-H. Performance Evaluation of Fast Data Acquisition Methods in Differential Phase Contrast CT 2012 (RSNA2012 SSE21-03)
  3. Brunner, S.T., Li, Y. & Chen, G.-H. Radiation Dose Efficiency Improvement in Photon-counting CT Using Prior Image Constrained Compressed Sensing 2012 (RSNA2012 SSG16-01)
  4. Niu, K., Tang, J., Royalty, K., Ozkan, O.S., Aagaard-Kienitz, B., Pulfer, K. & Chen, G.-H. Radiation Dose Reduction in Cone-beam CT Image-guided Interventions 2012 (RSNA2012 SSK16-07)
  5. Tang, J., Lubner, M.G., Kim, D.H., Ruma, J., Pickhardt, P.J. & Chen, G.-H. Sub-mSv CT Imaging for Urolithiasis Using PICCS 2012 (RSNA2012 SSK17-01)
  6. Brunner, S.T., Li, Y., Tang, J., Pulfer, K.A. & Chen, G.-H. Dose Partitioning Studies in Dual-Energy CT with Prior Image Constrained Compressed Sensing (PICCS) Reconstruction 2012 (RSNA2012 SSK17-06)
  7. Li, K., Bevins, N., Zambelli, J. & Chen, G.-H. Human Observer Performance Studies of X-ray Differential Phase Contrast CT 2012 (RSNA2012 SST14-02)
  8. Garrett, J., Tang, J., Zhang, Y., Ruth, C. & Chen, G.-H. Dose Reduction in Digital Breast Tomosynthesis with the Dose Reduction Prior Image Constrained Compressed Sensing (DR-PICCS) Algorithm AAPM, 2012, Vol. 39(6), pp. 3916-3916 [DOI] [URL]
  9. Theriault-Lauzier, P., Tang, J. & Chen, G.-H. Time-Resolved Cone-Beam CT for Cardiac InterventionsAAPM, 2011, Vol. 38(6), pp. 3760-3760 [DOI] [URL]
  10. Qi, Z. & Chen, G. Variations in Tumor Motion Trajectory Due to Breathing Irregularity in 4D Cone Beam CT Using Prior Image Constrained Compressed Sensing (PICCS-4DCBCT) AAPM, 2011, Vol. 38(6), pp. 3373-3373 [DOI] [URL]
  11. Li, K., Zambelli, J., Bevins, N., Qi, Z. & Chen, G. Performance Study of Regularized Phase Retrieval from X-Ray Differential Phase Contrast Projection Image AAPM, 2011, Vol. 38(6), pp. 3836-3836 [DOI] [URL]
  12. Chen, G. & Qi, Z. Performance Study of Filtered Back-Projection (FBP) and Prior Image Constrained Compressed Sensing (PICCS) Based 4D Cone Beam CT: The Effects of Gantry Rotation Time and the Number of Phase Bins on Tumor Motion Delineation AAPM, 2011, Vol. 38(6), pp. 3714-3714 [DOI][URL]
  13. Chen, G. & Qi, Z. Accurate Tumor Motion Delineation with 4D Cone Beam CT Using Prior Image Constrained Compressed Sensing (PICCS-4DCBCT) AAPM, 2011, Vol. 38(6), pp. 3770-3771 [DOI][URL]
  14. Chen, G., Connor, D., Liu, H. & Zambelli, J. X-Ray Phase Sensitive Imaging Methods AAPM, 2011, Vol. 38(6), pp. 3822-3823 [DOI] [URL]
  15. Francois, C., Schiebler, M., Kanne, J., Rio, A.M.D., Tang, J. & Chen, G.-H. Noise Reduction with Prior Image Constrained Compressed Sensing in Chest CT 2011 (RSNA2011 SSC04-09)
  16. Pickhardt, P.J., Lubner, M.G., Tang, J., Pozniak, M.A. & Chen, G.-H. Denoising of Low-Dose CT Colonography Images Using Prior Image Constrained Compressed Sensing (PICCS) Algorithm 2010(RSNA2010 SSK06-04)
  17. Qi, Z., Tang, J., Boone, J.M. & Chen, G.-H. Radiation Dose Reduction for Breast Cone-Beam CT2010 (RSNA2010 SSK15-09)
  18. Szczykutowicz, T. & Chen, G.-H. Radiation Dose Reduction in Dual-Energy CT Using PICCS Reconstruction 2011 (RSNA2011 SSM20-03)
  19. Tang, J., Asuncion, S., Pulfer, K., Rowley, H. & Chen, G.-H. Evaluation of ASiR and Prior Image Constrained Compressed Sensing (PICCS) on Ultra-Low Dose CT Studies 2011 (RSNA2011 SST16-04)
  20. Tang, J. & Chen, G.-H. Dose Reduction Using Prior Image Constrained Compressed Sensing (DR-PICCS) without either Loss in Spatial Resolution or Undersampling: Quantitative Evaluation 2010 (RSNA2010 SSK15-05)
  21. Tao, Y., Brunner, S.T., Pulfer, K.A., Vigen, K., Turski, P.A., Chen, G.-H. & Rowley, H.A. Radiation Dose Reduction Factor in Perfusion CT Using HYPR LR Reconstruction 2010 (RSNA2010 SSC11-04)
  22. Tao, Y., Pulfer, K.A., Rowley, H.A. & Chen, G.-H. SNR Enhancement in Time-resolved CT Angiography Using a Novel Wavelet Denoising Technique 2010 (RSNA2010 SSM21-06)
  23. Theriault-Lauzier, P., Tang, J. & Chen, G.-H. Time-resolved Cone-beam CT Reconstruction in Cardiac Interventions Using a Small Flat-panel Detector 2011 (RSNA2011 SSG14-04)
  24. Brunner, S.T., Tao, Y., Pulfer, K.A., Vigen, K., Turski, P.A., Chen, G.-H. & Rowley, H.A. Potential Clinical Use of First Moment Transit Time Perfusion CT Maps: A Quantitative Comparison with Mean Transit Time Perfusion Maps 2010 (RSNA2010 VN41-11)
  25. Zambelli, J., Bevins, N.B., Qi, Z., Li, K. & Chen, G.-H. Multicontrast Cone Beam CT Imaging Using a Talbot-Lau Interferometer 2010 (RSNA2010 SST15-06)
  26. Qi, Z. & Chen, G. Tumor Motion Assessment with 4D Cone Beam CT Using Prior Image Constrained Compressed Sensing (PICCS) AAPM, 2010, Vol. 37(6), pp. 3393-3393 [DOI] [URL]
  27. Qi, Z., Huang, S., Nett, B., Tang, J., Yang, K., Boone, J. & Chen, G. Dramatic Noise Reduction and Potential Radiation Dose Reduction in Breast Cone-Beam CT Imaging Using Prior Image Constrained Compressed Sensing (PICCS) AAPM, 2010, Vol. 37(6), pp. 3443-3443 [DOI] [URL]
  28. Szczykutowicz, T.P., Tang, J., Nett, B.E., Hsieh, J. & Chen, G.-H. Dose Reduction in Dual-Energy CT Using Prior Image Constrained Compressed Sensing (PICCS) 2009(SSM20-04)
  29. Tang, J., Hsieh, J. & Chen, G.-H. Temporal Resolution Improvement Prior Image Constrained Compressed Sensing (TRI-PICCS): Performance as a Function the Orientation and Motion Pattern of Moving Objects 2009(SSA20-02)
  30. Tang, J., Hsieh, J. & Chen, G.-H. Temporal Resolution Improvement Prior Image Constrained Compressed Sensing (TRI-PICCS): Performance as a Function of Achievable Temporal Resolution Improvement 2009(SSE23-02)
  31. Chen, G. Advanced CT Image Reconstruction Algorithms Via Compressed Sensing AAPM, 2008, Vol. 35(6), pp. 2993-2993 [DOI] [URL]
  32. Nett, B., Tang, J., Speidel, M. & Chen, G.-H. Low Dose Myocardial CT Perfusion Measurements Using Prior Image Constrained Compressed Sensing (PICCS) AAPM, 2008, Vol. 35(6), pp. 2870-2870 [DOI] [URL]
  33. Nett, B., Zambelli, J., Zhuang, T., Kienitz, B. & Chen, G.-H. Radiation Dose Reduction in Flat-Panel Cone Beam CT-guided Interventions 2008(SSJ24-01)
  34. Qi, Z., Leng, S., Zambelli, J., Nett, B., Tang, J. & Chen, G. Experimental Demonstration of Simultaneous High Spatial and High Temporal Resolution Using Prior Image Constrained Compressed Sensing (PICCS) for Gated CT Reconstruction AAPM, 2008, Vol. 35(6), pp. 2949-2950 [DOI] [URL]
  35. Supanich, M., Chen, G.-H., Hsieh, J., Mistretta, C., Speidel, M. & Rowley, H. Radiation Dose Reduction in CT Cerebral Perfusion Imaging Using a View Angle Undersampling Scheme and a HYPR Image Reconstruction Method 2008(SSM21-04)
  36. Tang, J., Nett, B., Leng, S. & Chen, G.-H. Radiation Dose Reduction in Myocardial CT Perfusion Imaging 2008(SST16-08)
  37. Tang, J., Nett, B., Leng, S., Zambelli, J., Rowley, H., Lum, D., Reeder, S. & Chen, G. Cardiac Function Measurements On An Interventional C-Arm System with Isotropic Spatial Resolution and High Temporal Resolution Using Prior Image Constrained Compressed Sensing (PICCS) AAPM, 2008, Vol. 35(6), pp. 2871-2871 [DOI] [URL]
  38. Supanich, M., Rowley, H., Turk, A., Hsieh, J., Chen, G.-H. & Mistretta, C. Low Radiation Dose Neurovascular HYPR CT: Combined CT Perfusion and Time-resolved CT Angiography from a Single Dynamic Injection 2007(LL-NR4065-L09)
  39. Leng, S., Nett, B. & Chen, G. Motion Artifact Correction Using a Novel Data Consistency Condition2006, Vol. 33(6), pp. 2158-2158 [DOI] [URL]
  40. Supanich, M., Chen, G., Rowley, H., Hsieh, J. & Mistretta, C. Factor of Ten Dose Reduction in CT Perfusion Imaging 2006, Vol. 33(6), pp. 2279-2279 [DOI] [URL]
  41. Supanich, M., Rowley, H., Chen, G.-H., Hsieh, J. & Mistretta, C. Dose Reduction in Neuro CT Exams Using Highly Constrained Back Projection (HYPR) Techniques 2006(SSQ17-04)
  42. Leng, S. & Chen, G. A New Fan-Beam Data Consistency Condition to Estimate Erroneous Or Missing Projection Data 2005, Vol. 32(6), pp. 2055-2055 [DOI] [URL]
  43. Nett, B., Zhuang, T. & Chen, G. Cone-Beam Image Reconstruction for Circular-Arc Trajectories Via Shift-Invariant Horizontal and Non-Horizontal Filtering 2005, Vol. 32(6), pp. 2092-2092 [DOI][URL]
  44. Zhuang, T., Leng, S., Nett, B. & Chen, G. Exact Fan-Beam Image Reconstruction Algorithm for a Specific Truncation Problem: Asymmetrically Positioned Half-Size Detector 2005, Vol. 32(6), pp. 2104-2104 [DOI] [URL]
  45. Nett, B., Mistretta, C. & Chen, G.-H. Numerical investigation of view sampling criterion in CT image reconstruction from three-dimensional parallel-beam projections 2004(SSC17-07)

Patents

  1. Chen, G. & Tang, J. Method for Prior Image Constrained Progressive Image Reconstruction2009(12/353,864)
  2. Chen, G. System and Method for Estimating Data Missing from CT Imaging Projections2007(11/738,680)
  3. Chen, G.-H. Calculation of additional projection data from projection data acquired with a divergent beam 2007(7280630)
  4. Chen, G.-H. Cone-beam filtered backprojection image reconstruction method for short trajectories2007(7203272)
  5. Chen, G.-H. Fan-beam and cone-beam image reconstruction using filtered backprojection of differentiated projection data 2007(7251307)
  6. Chen, G.-H. & Mistretta, C.A. Fourier space tomographic image reconstruction method2007(7209535)
  7. Mistretta, C.A., Rowley, H.A., VanLysel, M.S. & Chen, G.-H. X-ray system for use in image guided procedures 2007(7218702)
  8. Chen, G.-H. Correction of CT images for truncated or incomplete projections 2006(7050528)
  9. Chen, G.-H. Image reconstruction method for divergent beam scanner 2006(6990167)

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