George X Ding

Summary

Affiliation: Vanderbilt University
Country: USA

Publications

  1. doi request reprint An optically stimulated luminescence dosimeter for measuring patient exposure from imaging guidance procedures
    George X Ding
    Department of Radiation Oncology, Vanderbilt University School of Medicine, Vanderbilt Ingram Cancer Center, B 902, TVC, 1301 Medical Center Drive, Nashville, TN 37232 5671, USA
    Phys Med Biol 58:5885-97. 2013
  2. doi request reprint Radiation exposure to patients from image guidance procedures and techniques to reduce the imaging dose
    George X Ding
    Department of Radiation Oncology, Vanderbilt University School of Medicine, Nashville 37232 5671, USA
    Radiother Oncol 108:91-8. 2013
  3. doi request reprint An empirical formula to obtain tissue-phantom ratios from percentage depth-dose curves for small fields
    George X Ding
    Department of Radiation Oncology, Vanderbilt University School of Medicine, Nashville, TN, USA
    Phys Med Biol 58:4781-9. 2013
  4. doi request reprint Beam characteristics and stopping-power ratios of small radiosurgery photon beams
    George X Ding
    Department of Radiation Oncology, Vanderbilt University School of Medicine, Vanderbilt Ingram Cancer Center, B 902, TVC, 1301 Medical Center Drive, Nashville, TN 37232 5671, USA
    Phys Med Biol 57:5509-21. 2012
  5. ncbi request reprint Accurate patient dosimetry of kilovoltage cone-beam CT in radiation therapy
    George X Ding
    Vanderbilt Ingram Cancer Center, Department of Radiation Oncology, Vanderbilt University School of Medicine, Nashville, Tennessee 37232 5671, USA
    Med Phys 35:1135-44. 2008
  6. ncbi request reprint Impact of inhomogeneity corrections on dose coverage in the treatment of lung cancer using stereotactic body radiation therapy
    George X Ding
    Department of Radiation Oncology, Vanderbilt University School of Medicine, Vanderbilt Ingram Cancer Center, B 902, TVC, Preston Research Building, Nashville, Tennessee 37232 5671, USA
    Med Phys 34:2985-94. 2007
  7. doi request reprint A theoretical approach for non-equilibrium radiation dosimetry
    George X Ding
    Department of Radiation Oncology, Vanderbilt University School of Medicine, B 902, TVC, 1301 Medical Center Drive, Nashville, TN 37232 5671, USA
    Phys Med Biol 53:3493-9. 2008
  8. doi request reprint Beam characteristics and radiation output of a kilovoltage cone-beam CT
    George X Ding
    Department of Radiation Oncology, School of Medicine, Vanderbilt Ingram Cancer Center, Vanderbilt University, B 902, TVC, 1301 Medical Center Drive, Nashville, TN 37232 5671, USA
    Phys Med Biol 55:5231-48. 2010
  9. doi request reprint Reducing radiation exposure to patients from kV-CBCT imaging
    George X Ding
    Department of Radiation Oncology, Vanderbilt University School of Medicine, Nashville, TN 37232 5671, USA
    Radiother Oncol 97:585-92. 2010
  10. ncbi request reprint A study on adaptive IMRT treatment planning using kV cone-beam CT
    George X Ding
    Department of Radiation Oncology, Vanderbilt University, Nashville, TN 37232 5671, USA
    Radiother Oncol 85:116-25. 2007

Detail Information

Publications28

  1. doi request reprint An optically stimulated luminescence dosimeter for measuring patient exposure from imaging guidance procedures
    George X Ding
    Department of Radiation Oncology, Vanderbilt University School of Medicine, Vanderbilt Ingram Cancer Center, B 902, TVC, 1301 Medical Center Drive, Nashville, TN 37232 5671, USA
    Phys Med Biol 58:5885-97. 2013
    ..Due to its large variation in energy response, nanoDot is not suitable to measure radiation doses resulting from mixed beams of megavoltage therapeutic and kilovoltage imaging radiations. ..
  2. doi request reprint Radiation exposure to patients from image guidance procedures and techniques to reduce the imaging dose
    George X Ding
    Department of Radiation Oncology, Vanderbilt University School of Medicine, Nashville 37232 5671, USA
    Radiother Oncol 108:91-8. 2013
    ..To compare imaging doses from MV images, kV radiographs, and kV-CBCT and describe methods to reduce the dose to patient's organs using existing on-board imaging devices...
  3. doi request reprint An empirical formula to obtain tissue-phantom ratios from percentage depth-dose curves for small fields
    George X Ding
    Department of Radiation Oncology, Vanderbilt University School of Medicine, Nashville, TN, USA
    Phys Med Biol 58:4781-9. 2013
    ..By using this developed empirical formula the uncertainties between directly measured TPRs and converted TPRs from measured %dd curves are within 1%. ..
  4. doi request reprint Beam characteristics and stopping-power ratios of small radiosurgery photon beams
    George X Ding
    Department of Radiation Oncology, Vanderbilt University School of Medicine, Vanderbilt Ingram Cancer Center, B 902, TVC, 1301 Medical Center Drive, Nashville, TN 37232 5671, USA
    Phys Med Biol 57:5509-21. 2012
    ....
  5. ncbi request reprint Accurate patient dosimetry of kilovoltage cone-beam CT in radiation therapy
    George X Ding
    Vanderbilt Ingram Cancer Center, Department of Radiation Oncology, Vanderbilt University School of Medicine, Nashville, Tennessee 37232 5671, USA
    Med Phys 35:1135-44. 2008
    ..The methodology of the Monte Carlo beam calibration developed and introduced in this study allows the user to calculate both relative and absolute absorbed doses...
  6. ncbi request reprint Impact of inhomogeneity corrections on dose coverage in the treatment of lung cancer using stereotactic body radiation therapy
    George X Ding
    Department of Radiation Oncology, Vanderbilt University School of Medicine, Vanderbilt Ingram Cancer Center, B 902, TVC, Preston Research Building, Nashville, Tennessee 37232 5671, USA
    Med Phys 34:2985-94. 2007
    ..This study indicates that the real minimum PTV dose coverage cannot be guaranteed when the PB-NC is used to calculate the monitor unit settings in dose prescriptions...
  7. doi request reprint A theoretical approach for non-equilibrium radiation dosimetry
    George X Ding
    Department of Radiation Oncology, Vanderbilt University School of Medicine, B 902, TVC, 1301 Medical Center Drive, Nashville, TN 37232 5671, USA
    Phys Med Biol 53:3493-9. 2008
    ..The BEAMnrc/DOSXYZnrc code was employed in the Monte Carlo simulations...
  8. doi request reprint Beam characteristics and radiation output of a kilovoltage cone-beam CT
    George X Ding
    Department of Radiation Oncology, School of Medicine, Vanderbilt Ingram Cancer Center, Vanderbilt University, B 902, TVC, 1301 Medical Center Drive, Nashville, TN 37232 5671, USA
    Phys Med Biol 55:5231-48. 2010
    ..The PW-LR phantom is a suitable liquid water substitute in the beam output determination resulting from a kV-CBCT acquisition...
  9. doi request reprint Reducing radiation exposure to patients from kV-CBCT imaging
    George X Ding
    Department of Radiation Oncology, Vanderbilt University School of Medicine, Nashville, TN 37232 5671, USA
    Radiother Oncol 97:585-92. 2010
    ..This study explores methods to reduce dose due to kV-CBCT imaging for patients undergoing radiation therapy...
  10. ncbi request reprint A study on adaptive IMRT treatment planning using kV cone-beam CT
    George X Ding
    Department of Radiation Oncology, Vanderbilt University, Nashville, TN 37232 5671, USA
    Radiother Oncol 85:116-25. 2007
    ....
  11. ncbi request reprint Characteristics of kilovoltage x-ray beams used for cone-beam computed tomography in radiation therapy
    George X Ding
    Department of Radiation Oncology, Vanderbilt University School of Medicine, Nashville, TN 37232 5671, USA
    Phys Med Biol 52:1595-615. 2007
    ..This study shows both the magnitude and the characteristics of scattered x-rays. The knowledge obtained from this investigation may be useful in the future design of the image detector to improve the image quality...
  12. ncbi request reprint A comparison of electron beam dose calculation accuracy between treatment planning systems using either a pencil beam or a Monte Carlo algorithm
    George X Ding
    Department of Radiation Oncology, Vanderbilt University Medical Center, 1301 22nd Avenue, Nashville, TN 37232, USA
    Int J Radiat Oncol Biol Phys 63:622-33. 2005
    ..To present a comparison of the accuracy of two commercial electron beam treatment planning systems: one uses a Monte Carlo algorithm and the other uses a pencil beam model for dose calculations...
  13. ncbi request reprint Commissioning stereotactic radiosurgery beams using both experimental and theoretical methods
    George X Ding
    Department of Radiation Oncology, B 902, TVC, Vanderbilt University Medical Center, Nashville, TN 37232 5671, USA
    Phys Med Biol 51:2549-66. 2006
    ..The data set presented in this study can be used as a reference in commissioning stereotactic radiosurgery beams shaped by a BrainLAB m3 on a Varian 2100EX or 600C accelerator...
  14. ncbi request reprint First macro Monte Carlo based commercial dose calculation module for electron beam treatment planning--new issues for clinical consideration
    George X Ding
    Department of Radiation Oncology, Vanderbilt University Medical Center, Nashville, USA
    Phys Med Biol 51:2781-99. 2006
    ..Therefore it is imperative that a consistent approach to dose reporting is used...
  15. ncbi request reprint Dosimetric evaluation of the OneDoseTM MOSFET for measuring kilovoltage imaging dose from image-guided radiotherapy procedures
    George X Ding
    Department of Radiation Oncology, Vanderbilt Ingram Cancer Center, Vanderbilt University School of Medicine, B 902, TVC 1301 Medical Center Drive, Nashville, Tennessee 37232 5671, USA
    Med Phys 37:4880-5. 2010
    ....
  16. doi request reprint Radiation dose from kilovoltage cone beam computed tomography in an image-guided radiotherapy procedure
    George X Ding
    Vanderbilt Ingram Cancer Center, Department of Radiation Oncology, Vanderbilt University School of Medicine, Nashville, TN, USA
    Int J Radiat Oncol Biol Phys 73:610-7. 2009
    ..This work is to provide detailed information concerning the additional imaging doses to patients' radiosensitive organs from a kilovoltage cone beam computed tomography (kV CBCT) scan procedure...
  17. ncbi request reprint Deep-inspiration breath-hold kilovoltage cone-beam CT for setup of stereotactic body radiation therapy for lung tumors: initial experience
    Dennis M Duggan
    Vanderbilt University, Department of Radiation Oncology, B1003 Preston Research Building, Nashville, TN 37232 5671, United States
    Lung Cancer 56:77-88. 2007
    ..We conclude that for setting up SBRT treatments of lung tumors, DIBH CBCT is feasible, fast and may result in less variation among observers than using bony anatomy in orthogonal radiographs...
  18. ncbi request reprint Evaluation of the dynamic conformal arc therapy in comparison to intensity-modulated radiation therapy in prostate, brain, head-and-neck and spine tumors
    Manuel A Morales-Paliza
    Department of Radiation Oncology, Vanderbilt University Medical Center, Nashville, TN 37232 5671, USA
    J Appl Clin Med Phys 12:3197. 2011
    ..Experimental dose-validation accuracy, ease of planning and reduced treatment times make DAT both acceptable and attractive for clinical use...
  19. ncbi request reprint Small fields: nonequilibrium radiation dosimetry
    Indra J Das
    Department of Radiation Oncology, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
    Med Phys 35:206-15. 2008
    ..rican Association of Physicists in Medicine...
  20. doi request reprint A new approach to account for the medium-dependent effect in model-based dose calculations for kilovoltage x-rays
    Jason M Pawlowski
    Department of Physics and Astronomy, Vanderbilt University, 6301 Stevenson Center, Vanderbilt University, Nashville, TN 37235, USA
    Phys Med Biol 56:3919-34. 2011
    ....
  21. doi request reprint Reduction of dose delivered to organs at risk in prostate cancer patients via image-guided radiation therapy
    Jason M Pawlowski
    Department of Radiation Oncology, Vanderbilt University School of Medicine, Vanderbilt Ingram Cancer Center, Nashville, Tennessee 37232 5671, USA
    Int J Radiat Oncol Biol Phys 76:924-34. 2010
    ..To determine whether image guidance can improve the dose delivered to target organs and organs at risk (OARs) for prostate cancer patients treated with intensity-modulated radiotherapy (IMRT)...
  22. doi request reprint An algorithm for kilovoltage x-ray dose calculations with applications in kV-CBCT scans and 2D planar projected radiographs
    Jason M Pawlowski
    Department of Physics and Astronomy, Vanderbilt University 6301 Stevenson Center, Nashville, TN 37235, USA
    Phys Med Biol 59:2041-58. 2014
    ..6% for bone and 2.4% for soft tissues. This algorithm offers acceptable accuracy and has the potential to extend the applicability of model-based dose calculation algorithms from megavoltage to kilovoltage photon beams. ..
  23. ncbi request reprint Comment on "Testing of the analytical anisotropic algorithm for photon dose calculation" [Med. Phys. 33, 4130-4148 (2006)]
    George X Ding
    Med Phys 34:3414. 2007
  24. ncbi request reprint An investigation of accelerator head scatter and output factor in air
    George X Ding
    Medical Physics, Fraser Valley Centre, British Columbia Cancer Agency, 13750 96th Avenue, Surrey, British Columbia, V3V 1Z2, Canada
    Med Phys 31:2527-33. 2004
    ..The insight information may have some implications for developing generalized empirical models to calculate the head scatter...
  25. ncbi request reprint Using Monte Carlo simulations to commission photon beam output factors--a feasibility study
    George X Ding
    Medical Physics, Fraser Valley Cancer Center, British Columbia Cancer Agency, 13750, 96th Avenue, Surrey, BC V3V 1Z2, Canada
    Phys Med Biol 48:3865-74. 2003
    ..The information obtained is also useful to develop an algorithm for accurate beam modelling. This investigation indicates that Monte Carlo methods can be used to assist commissioning of output factors for photon beams...
  26. ncbi request reprint Dose discrepancies between Monte Carlo calculations and measurements in the buildup region for a high-energy photon beam
    George X Ding
    Medical Physics, Fraser Valley Cancer Centre, British Columbia Cancer Agency, Surrey, BC, V3V 1Z2 Canada
    Med Phys 29:2459-63. 2002
    ..At a depth of 1 cm, discrepancies of about 5% are still observed in the buildup region for the field with the lead foil. Therefore a new explanation for the unresolved discrepancy remains to be found...
  27. ncbi request reprint Are neutrons responsible for the dose discrepancies between Monte Carlo calculations and measurements in the build-up region for a high-energy photon beam?
    George X Ding
    Medical Physics, Fraser Valley Cancer Centre, British Columbia Cancer Agency, Surrey, Canada
    Phys Med Biol 47:3251-61. 2002
    ..Therefore, neutrons present in a high-energy photon beam were unlikely to be responsible for the reported discrepancies in the build-up region for large fields...
  28. ncbi request reprint Energy spectra, angular spread, fluence profiles and dose distributions of 6 and 18 MV photon beams: results of monte carlo simulations for a varian 2100EX accelerator
    George X Ding
    Medical Physics, Fraser Valley Cancer Center, British Columbia Cancer Agency, Surrey, Canada
    Phys Med Biol 47:1025-46. 2002
    ..However, the fluence of these incident charged particles is less than 1% of incident photon fluence in all cases...