Choonsik Lee

Summary

Affiliation: National Institutes of Health
Country: USA

Publications

  1. pmc Computational lymphatic node models in pediatric and adult hybrid phantoms for radiation dosimetry
    Choonsik Lee
    Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institute of Health, Bethesda, MD, USA
    Phys Med Biol 58:N59-82. 2013
  2. pmc Organ doses for reference pediatric and adolescent patients undergoing computed tomography estimated by Monte Carlo simulation
    Choonsik Lee
    Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institute of Health, Bethesda, MD 20852, USA
    Med Phys 39:2129-46. 2012
  3. pmc Organ doses for reference adult male and female undergoing computed tomography estimated by Monte Carlo simulations
    Choonsik Lee
    Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institute of Health, Bethesda, Maryland 20852, USA
    Med Phys 38:1196-206. 2011
  4. pmc S values for 131I based on the ICRP adult voxel phantoms
    Stephanie Lamart
    Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
    Radiat Prot Dosimetry 168:92-110. 2016
  5. pmc Comparison of internal dosimetry factors for three classes of adult computational phantoms with emphasis on I-131 in the thyroid
    Stephanie Lamart
    Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
    Phys Med Biol 56:7317-35. 2011
  6. pmc Evaluation of the use of surrogate tissues for calculating radiation dose to lymphatic nodes from external photon beams
    Stephanie Lamart
    Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, MD 20850, USA
    Radiat Prot Dosimetry 157:600-9. 2013
  7. pmc Reduction in radiation doses from paediatric CT scans in Great Britain
    Choonsik Lee
    1 Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health Bethesda, MD, USA
    Br J Radiol 89:20150305. 2016
  8. doi request reprint No association between radiation dose from pediatric CT scans and risk of subsequent Hodgkin lymphoma
    Amy Berrington de Gonzalez
    Division of Cancer Epidemiology and Genetics, National Cancer Institute
    Cancer Epidemiol Biomarkers Prev . 2017
  9. pmc Projected cancer risks potentially related to past, current, and future practices in paediatric CT in the United Kingdom, 1990-2020
    Neige M Y Journy
    Radiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, 9609 Medical Center Drive, MSC 9776, Bethesda, Maryland 20892, USA
    Br J Cancer 116:109-116. 2017
  10. pmc BODY SIZE-SPECIFIC EFFECTIVE DOSE CONVERSION COEFFICIENTS FOR CT SCANS
    Anna Romanyukha
    Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institute of Health, Bethesda, MD, USA
    Radiat Prot Dosimetry 172:428-437. 2016

Collaborators

Detail Information

Publications17

  1. pmc Computational lymphatic node models in pediatric and adult hybrid phantoms for radiation dosimetry
    Choonsik Lee
    Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institute of Health, Bethesda, MD, USA
    Phys Med Biol 58:N59-82. 2013
    ..By testing sensitivity of S values to random sampling and voxel resolution, we confirmed that the lymph node model is reasonably stable and consistent for different random samplings and voxel resolutions...
  2. pmc Organ doses for reference pediatric and adolescent patients undergoing computed tomography estimated by Monte Carlo simulation
    Choonsik Lee
    Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institute of Health, Bethesda, MD 20852, USA
    Med Phys 39:2129-46. 2012
    ..The data will permit rapid estimates of organ and effective doses for patients of different age, gender, examination type, and CT scanner model...
  3. pmc Organ doses for reference adult male and female undergoing computed tomography estimated by Monte Carlo simulations
    Choonsik Lee
    Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institute of Health, Bethesda, Maryland 20852, USA
    Med Phys 38:1196-206. 2011
    ..organ doses in a reference adult male and female for different scan ranges to investigate the degree to which existing commercial programs can reasonably match organ doses defined in these more anatomically realistic adult hybrid phantoms..
  4. pmc S values for 131I based on the ICRP adult voxel phantoms
    Stephanie Lamart
    Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
    Radiat Prot Dosimetry 168:92-110. 2016
    ..The new set of S values can be applied prospectively or retrospectively to the calculation of radiation doses in adults internally exposed to (131)I, including nuclear medicine patients treated for thyroid cancer or hyperthyroidism. ..
  5. pmc Comparison of internal dosimetry factors for three classes of adult computational phantoms with emphasis on I-131 in the thyroid
    Stephanie Lamart
    Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
    Phys Med Biol 56:7317-35. 2011
    ....
  6. pmc Evaluation of the use of surrogate tissues for calculating radiation dose to lymphatic nodes from external photon beams
    Stephanie Lamart
    Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, MD 20850, USA
    Radiat Prot Dosimetry 157:600-9. 2013
    ....
  7. pmc Reduction in radiation doses from paediatric CT scans in Great Britain
    Choonsik Lee
    1 Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health Bethesda, MD, USA
    Br J Radiol 89:20150305. 2016
    ..We conducted the first survey to directly assess the trends in CT scan parameters and doses for paediatric CT scans performed in Great Britain between 1978 and 2008...
  8. doi request reprint No association between radiation dose from pediatric CT scans and risk of subsequent Hodgkin lymphoma
    Amy Berrington de Gonzalez
    Division of Cancer Epidemiology and Genetics, National Cancer Institute
    Cancer Epidemiol Biomarkers Prev . 2017
    ..We examined the relationship between estimated radiation dose from CT scans and subsequent Hodgkin lymphoma in the UK pediatric CT scans cohort...
  9. pmc Projected cancer risks potentially related to past, current, and future practices in paediatric CT in the United Kingdom, 1990-2020
    Neige M Y Journy
    Radiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, 9609 Medical Center Drive, MSC 9776, Bethesda, Maryland 20892, USA
    Br J Cancer 116:109-116. 2017
    ..To project risks of developing cancer and the number of cases potentially induced by past, current, and future computed tomography (CT) scans performed in the United Kingdom in individuals aged <20 years...
  10. pmc BODY SIZE-SPECIFIC EFFECTIVE DOSE CONVERSION COEFFICIENTS FOR CT SCANS
    Anna Romanyukha
    Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institute of Health, Bethesda, MD, USA
    Radiat Prot Dosimetry 172:428-437. 2016
    ....
  11. doi request reprint NCICT: a computational solution to estimate organ doses for pediatric and adult patients undergoing CT scans
    Choonsik Lee
    Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institute of Health, Bethesda, MD 20892, USA
    J Radiol Prot 35:891-909. 2015
    ..The NCICT will be available for research purpose in the near future. ..
  12. pmc Prediction of the location and size of the stomach using patient characteristics for retrospective radiation dose estimation following radiotherapy
    Stephanie Lamart
    Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
    Phys Med Biol 58:8739-53. 2013
    ..Those dose calculations demonstrated good agreement between predicted and actual stomachs compared with doses derived from a reference model of the body that might be used in the absence of individual CT scan data...
  13. pmc The UF family of reference hybrid phantoms for computational radiation dosimetry
    Choonsik Lee
    Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institute of Health, Bethesda, MD 20852, USA
    Phys Med Biol 55:339-63. 2010
    ....
  14. doi request reprint Dose coefficients for ICRP reference pediatric phantoms exposed to idealised external gamma fields
    Lienard A Chang
    Radiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, MD 20850, United States
    J Radiol Prot 37:127-146. 2017
    ..Our tabulated organ and effective dose coefficients for these next-generation phantoms should provide more accurate estimates of organ doses in children than earlier dosimetric models allowed...
  15. pmc Relationship between paediatric CT scans and subsequent risk of leukaemia and brain tumours: assessment of the impact of underlying conditions
    Amy Berrington de Gonzalez
    Radiation Epidemiology Unit, Division of Cancer Epidemiology and Genetics, NCI, Bethesda, MD, USA
    Br J Cancer 114:388-94. 2016
    ..Underlying unreported conditions could have introduced bias into these findings...
  16. doi request reprint Secondary Neutron Doses to Pediatric Patients During Intracranial Proton Therapy: Monte Carlo Simulation of the Neutron Energy Spectrum and its Organ Doses
    Shinnosuke Matsumoto
    Graduate School, Oita University of Nursing and Health Sciences Oita city, Oita 870 1201, Japan Medical Exposure Research Project, National Institute of Radiological Sciences Chiba city, Chiba 263 8555, Japan Division of Particle Therapy, National Cancer Center Hospital East Kashiwa city, Chiba 277 8577, Japan Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institute of Health, Rockville, MD 20850, USA Department of Radiology, University of Florida, Gainesville, FL 32611, USA
    Health Phys 110:380-6. 2016
    ..These results suggested that proactive protection will be required in the design of the treatment beam-line structures and that organ doses from secondary neutrons may be able to be reduced. ..
  17. doi request reprint Database of normalised computed tomography dose index for retrospective CT dosimetry
    Eunah Lee
    Radiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institute of Health, Bethesda, MD 20852, USA
    J Radiol Prot 34:363-88. 2014
    ..The established CTDI database will be used for the reconstruction of CTDIvol and then the estimation of individualised organ doses for retrospective patient cohorts in epidemiologic studies. ..