Christopher Cagnon
HS Clinical Professor, Radiological Sciences, University of California Los Angeles
ccagnon@mednet.ucla.edu
310-206-8613
UCLA Radiol Sci
BOX 951721
BL-428 CHS
Los Angeles, CA 90095
Affiliations
Member, Physics & Biology in Medicine GPB Home Area
Biography
Cagnon received his Ph.D. in Biomedical Physics in 2002 from UCLA. He is a board-certified diagnostic physicist, the head of UCLA Clinical Radiological Physics, which includes oversight of the Imaging Equipment Quality Control Program, and a faculty member of the UCLA Biomedical Physics Graduate Program. Cagnon?s interests involve CT image acquisition physics, including estimating radiation dose and assessing image quality. Cagnon leads the development of MedQIA’s Quality Assurance Program.
Publications
- Hardy AJ, Bostani M, Kim GHJ, Cagnon CH, Zankl MA, McNitt-Gray M. Evaluating Size-Specific Dose Estimate (SSDE) as an estimate of organ doses from routine CT exams derived from Monte Carlo simulations.. Medical physics, 2021.
- Layman RR, Hardy AJ, Kim HJ, Chou EN, Bostani M, Cagnon C, Cody D, McNitt-Gray M. A comparison of breast and lung doses from chest CT scans using organ-based tube current modulation (OBTCM) vs. Automatic tube current modulation (ATCM).. Journal of applied clinical medical physics, 2021.
- Hardy AJ, Bostani M, Angel E, Cagnon C, Sechopoulos I, McNitt-Gray MF. Reference dataset for benchmarking fetal doses derived from Monte Carlo simulations of CT exams.. Medical physics, 2020.
- Hardy AJ, Angel E, Bostani M, Cagnon C, McNitt-Gray M. Estimating fetal dose from tube current-modulated (TCM) and fixed tube current (FTC) abdominal/pelvis CT examinations.. Medical physics, 2019.
- Hardy AJ, Bostani M, Hernandez AM, Zankl M, McCollough C, Cagnon C, Boone JM, McNitt-Gray M. Estimating a size-specific dose for helical head CT examinations using Monte Carlo simulation methods.. Medical physics, 2018.
- Hardy AJ, Bostani M, McMillan K, Zankl M, McCollough C, Cagnon C, McNitt-Gray M. Estimating lung, breast, and effective dose from low-dose lung cancer screening CT exams with tube current modulation across a range of patient sizes.. Medical physics, 2018.
- McMillan K, Bostani M, Cagnon CH, Yu L, Leng S, McCollough CH, McNitt-Gray MF. Estimating patient dose from CT exams that use automatic exposure control: Development and validation of methods to accurately estimate tube current values.. Medical physics, 2017.
- Bostani M, McMillan K, Lu P, Kim GHJ, Cody D, Arbique G, Bruce Greenberg S, DeMarco JJ, Cagnon CH, McNitt-Gray MF. Erratum: "Estimating organ doses from tube current modulated CT examinations using a generalized linear model" [Med. Phys. Vol 44 (4), 1500-1513 (2017)].. Medical physics, 2017.
- Demb J, Chu P, Nelson T, Hall D, Seibert A, Lamba R, Boone J, Krishnam M, Cagnon C, Bostani M, Gould R, Miglioretti D, Smith-Bindman R. Optimizing Radiation Doses for Computed Tomography Across Institutions: Dose Auditing and Best Practices.. JAMA internal medicine, 2017.
- Bostani M, McMillan K, Lu P, Kim GH, Cody D, Arbique G, Greenberg SB, DeMarco JJ, Cagnon CH, McNitt-Gray MF. Estimating organ doses from tube current modulated CT examinations using a generalized linear model.. Medical physics, 2017.
- Fujii K, McMillan K, Bostani M, Cagnon C, McNitt-Gray M. Patient Size-Specific Analysis of Dose Indexes From CT Lung Cancer Screening.. AJR. American journal of roentgenology, 2016.
- Seals KF, Lee EW, Cagnon CH, Al-Hakim RA, Kee ST. Radiation-Induced Cataractogenesis: A Critical Literature Review for the Interventional Radiologist.. Cardiovascular and interventional radiology, 2015.
- Smith-Bindman R, Moghadassi M, Wilson N, Nelson TR, Boone JM, Cagnon CH, Gould R, Hall DJ, Krishnam M, Lamba R, McNitt-Gray M, Seibert A, Miglioretti DL. Radiation Doses in Consecutive CT Examinations from Five University of California Medical Centers.. Radiology, 2015.
- Bostani M, Mueller JW, McMillan K, Cody DD, Cagnon CH, DeMarco JJ, McNitt-Gray MF. Accuracy of Monte Carlo simulations compared to in-vivo MDCT dosimetry.. Medical physics, 2015.
- Bostani M, McMillan K, Lu P, Kim HJ, Cagnon CH, DeMarco JJ, McNitt-Gray MF. Attenuation-based size metric for estimating organ dose to patients undergoing tube current modulated CT exams.. Medical physics, 2015.
- McMillan K, Bostani M, Cagnon C, Zankl M, Sepahdari AR, McNitt-Gray M. Size-specific, scanner-independent organ dose estimates in contiguous axial and helical head CT examinations.. Medical physics, 2014.
- Bostani M, McMillan K, DeMarco JJ, Cagnon CH, McNitt-Gray MF. Validation of a Monte Carlo model used for simulating tube current modulation in computed tomography over a wide range of phantom conditions/challenges.. Medical physics, 2014.
- Zhang D, Cagnon CH, Villablanca JP, McCollough CH, Cody DD, Zankl M, Demarco JJ, McNitt-Gray MF. Estimating peak skin and eye lens dose from neuroperfusion examinations: use of Monte Carlo based simulations and comparisons to CTDIvol, AAPM Report No. 111, and ImPACT dosimetry tool values.. Medical physics, 2013.
- Kruger R, Flynn MJ, Judy PF, Cagnon CH, Seibert JA. Effective dose assessment for participants in the National Lung Screening Trial undergoing posteroanterior chest radiographic examinations.. AJR. American journal of roentgenology, 2013.
- Mathieu KB, Turner AC, Khatonabadi M, McNitt-Gray MF, Cagnon CH, Cody DD. Varying kVp as a means of reducing CT breast dose to pediatric patients.. Physics in medicine and biology, 2013.
- Khatonabadi M, Kim HJ, Lu P, McMillan KL, Cagnon CH, DeMarco JJ, McNitt-Gray MF. The feasibility of a regional CTDIvol to estimate organ dose from tube current modulated CT exams.. Medical physics, 2013.
- Khatonabadi M, Zhang D, Mathieu K, Kim HJ, Lu P, Cody D, Demarco JJ, Cagnon CH, McNitt-Gray MF. A comparison of methods to estimate organ doses in CT when utilizing approximations to the tube current modulation function.. Medical physics, 2012.
- Zhang D, Cagnon CH, Villablanca JP, McCollough CH, Cody DD, Stevens DM, Zankl M, Demarco JJ, Turner AC, Khatonabadi M, McNitt-Gray MF. Peak skin and eye lens radiation dose from brain perfusion CT based on Monte Carlo simulation.. AJR. American journal of roentgenology, 2012.
- Larke FJ, Kruger RL, Cagnon CH, Flynn MJ, McNitt-Gray MM, Wu X, Judy PF, Cody DD. Estimated radiation dose associated with low-dose chest CT of average-size participants in the National Lung Screening Trial.. AJR. American journal of roentgenology, 2011.
- Turner AC, Zhang D, Khatonabadi M, Zankl M, DeMarco JJ, Cagnon CH, Cody DD, Stevens DM, McCollough CH, McNitt-Gray MF. The feasibility of patient size-corrected, scanner-independent organ dose estimates for abdominal CT exams.. Medical physics, 2011.
- Cody DD, Kim HJ, Cagnon CH, Larke FJ, McNitt-Gray MM, Kruger RL, Flynn MJ, Seibert JA, Judy PF, Wu X. Normalized CT dose index of the CT scanners used in the National Lung Screening Trial.. AJR. American journal of roentgenology, 2010.
- Turner AC, Zankl M, DeMarco JJ, Cagnon CH, Zhang D, Angel E, Cody DD, Stevens DM, McCollough CH, McNitt-Gray MF. The feasibility of a scanner-independent technique to estimate organ dose from MDCT scans: using CTDIvol to account for differences between scanners.. Medical physics, 2010.
- Zhang D, Zankl M, DeMarco JJ, Cagnon CH, Angel E, Turner AC, McNitt-Gray MF. Reducing radiation dose to selected organs by selecting the tube start angle in MDCT helical scans: a Monte Carlo based study.. Medical physics, 2009.
- Angel E, Yaghmai N, Jude CM, DeMarco JJ, Cagnon CH, Goldin JG, McCollough CH, Primak AN, Cody DD, Stevens DM, McNitt-Gray MF. Dose to radiosensitive organs during routine chest CT: effects of tube current modulation.. AJR. American journal of roentgenology, 2009.
- Turner AC, Zhang D, Kim HJ, DeMarco JJ, Cagnon CH, Angel E, Cody DD, Stevens DM, Primak AN, McCollough CH, McNitt-Gray MF. A method to generate equivalent energy spectra and filtration models based on measurement for multidetector CT Monte Carlo dosimetry simulations.. Medical physics, 2009.
- Zhang D, Savandi AS, Demarco JJ, Cagnon CH, Angel E, Turner AC, Cody DD, Stevens DM, Primak AN, McCollough CH, McNitt-Gray MF. Variability of surface and center position radiation dose in MDCT: Monte Carlo simulations using CTDI and anthropomorphic phantoms.. Medical physics, 2009.
- Angel E, Yaghmai N, Jude CM, Demarco JJ, Cagnon CH, Goldin JG, Primak AN, Stevens DM, Cody DD, McCollough CH, McNitt-Gray MF. Monte Carlo simulations to assess the effects of tube current modulation on breast dose for multidetector CT.. Physics in medicine and biology, 2009.
- Angel E, Wellnitz CV, Goodsitt MM, Yaghmai N, DeMarco JJ, Cagnon CH, Sayre JW, Cody DD, Stevens DM, Primak AN, McCollough CH, McNitt-Gray MF. Radiation dose to the fetus for pregnant patients undergoing multidetector CT imaging: Monte Carlo simulations estimating fetal dose for a range of gestational age and patient size.. Radiology, 2008.
- DeMarco JJ, Cagnon CH, Cody DD, Stevens DM, McCollough CH, Zankl M, Angel E, McNitt-Gray MF. Estimating radiation doses from multidetector CT using Monte Carlo simulations: effects of different size voxelized patient models on magnitudes of organ and effective dose.. Physics in medicine and biology, 2007.
- Cagnon CH, Cody DD, McNitt-Gray MF, Seibert JA, Judy PF, Aberle DR. Description and implementation of a quality control program in an imaging-based clinical trial.. Academic radiology, 2006.
- DeMarco JJ, Cagnon CH, Cody DD, Stevens DM, McCollough CH, O'Daniel J, McNitt-Gray MF. A Monte Carlo based method to estimate radiation dose from multidetector CT (MDCT): cylindrical and anthropomorphic phantoms.. Physics in medicine and biology, 2005.
- Cooper VN, Oshiro T, Cagnon CH, Bassett LW, McLeod-Stockmann TM, Bezrukiy NV. Evaluation of detector dynamic range in the x-ray exposure domain in mammography: a comparison between film-screen and flat panel detector systems.. Medical physics, 2003.
- Jarry G, DeMarco JJ, Beifuss U, Cagnon CH, McNitt-Gray MF. A Monte Carlo-based method to estimate radiation dose from spiral CT: from phantom testing to patient-specific models.. Physics in medicine and biology, 2003.
- Medin PM, Solberg TD, De Salles AA, Cagnon CH, Selch MT, Johnson JP, Smathers JB, Cosman ER. Investigations of a minimally invasive method for treatment of spinal malignancies with LINAC stereotactic radiation therapy: accuracy and animal studies.. International journal of radiation oncology, biology, physics, 2002.
- Kimme-Smith C, Wuelfing P, Kitts EL, Cagnon C, Basic M, Bassett L. Mammography film processor replenishment rate: bromide level monitoring.. Medical physics, 1997.
- Cagnon CH, Benedict SH, Mankovich NJ, Bushberg JT, Seibert JA, Whiting JS. Exposure rates in high-level-control fluoroscopy for image enhancement.. Radiology, 1991.