film dosimetry

Summary

Summary: Use of a device (film badge) for measuring exposure of individuals to radiation. It is usually made of metal, plastic, or paper and loaded with one or more pieces of x-ray film.

Top Publications

  1. ncbi Energy dependence of response of new high sensitivity radiochromic films for megavoltage and kilovoltage radiation energies
    Sou Tung Chiu-Tsao
    Radiation Oncology Department, Beth Israel Medical Center and St Luke s Roosevelt Hospital Center, New York, New York 10003, USA
    Med Phys 32:3350-4. 2005
  2. ncbi Dosimetric accuracy of Kodak EDR2 film for IMRT verifications
    Nathan L Childress
    Department of Radiation Physics, The University of Texas M D Anderson Cancer Center, Houston, Texas 77030, USA
    Med Phys 32:539-48. 2005
  3. ncbi Interpretation and evaluation of the gamma index and the gamma index angle for the verification of IMRT hybrid plans
    Markus Stock
    Department of Radiotherapy and Radiobiology, Medical University Vienna, Waehringer Guertel 18 20, A 1090 Vienna, Austria
    Phys Med Biol 50:399-411. 2005
  4. ncbi Interpolation and extrapolation of dose measurements with different detector sizes to improve the spatial resolution of radiotherapy dosimetry as demonstrated for helical tomotherapy
    Andrea McNiven
    Department of Medical Biophysics, University of Western Ontario and London Regional Cancer Centre, London, ON, N6A 4L6, Canada
    Phys Med Biol 49:3665-74. 2004
  5. ncbi Matchline dosimetry in step and shoot IMRT fields: a film study
    P Tangboonduangjit
    Department of Engineering Physics, University of Wollongong, NSW, Australia
    Phys Med Biol 49:N287-92. 2004
  6. ncbi Evaluation and optimization of the new EBT2 radiochromic film dosimetry system for patient dose verification in radiotherapy
    L Richley
    Bristol Haematology and Oncology Centre, Bristol BS28ED, UK
    Phys Med Biol 55:2601-17. 2010
  7. ncbi Precise radiochromic film dosimetry using a flat-bed document scanner
    Slobodan Devic
    Medical Physics Department, McGill University Health Centre, Montreal, Quebec H3G IA4, Canada
    Med Phys 32:2245-53. 2005
  8. ncbi Time-limited fluoroscopy to reduce radiation exposure during ERCP: a prospective randomized trial
    Lance T Uradomo
    Division of Gastroenterology and Hepatology, University of Maryland Medical Center, Baltimore, Maryland 21201, USA
    Gastrointest Endosc 66:84-9. 2007
  9. ncbi Evaluation of a glassless photographic film scanner for high-gradient radiochromic film dosimetry
    A De Puysseleyr
    Department of Radiotherapy, Ghent University Hospital, De Pintelaan 185, 9000 Ghent, Belgium
    Phys Med Biol 57:127-42. 2012
  10. ncbi The use of film dosimetry of the penumbra region to improve the accuracy of intensity modulated radiotherapy
    Mark R Arnfield
    Department of Radiation Oncology, McKay Dee Hospital Center, Ogden, Utah 84403, USA
    Med Phys 32:12-8. 2005

Detail Information

Publications223 found, 100 shown here

  1. ncbi Energy dependence of response of new high sensitivity radiochromic films for megavoltage and kilovoltage radiation energies
    Sou Tung Chiu-Tsao
    Radiation Oncology Department, Beth Israel Medical Center and St Luke s Roosevelt Hospital Center, New York, New York 10003, USA
    Med Phys 32:3350-4. 2005
    ..XR-QA film is promising for kilovoltage sources with a narrow energy spectra. The new high sensitivity radiochromic films are promising tools in radiation dosimetry...
  2. ncbi Dosimetric accuracy of Kodak EDR2 film for IMRT verifications
    Nathan L Childress
    Department of Radiation Physics, The University of Texas M D Anderson Cancer Center, Houston, Texas 77030, USA
    Med Phys 32:539-48. 2005
    ..When properly calibrated, EDR2 film can be an adequate two-dimensional dosimeter for IMRT verifications, although it may underestimate doses in regions with long exposure times...
  3. ncbi Interpretation and evaluation of the gamma index and the gamma index angle for the verification of IMRT hybrid plans
    Markus Stock
    Department of Radiotherapy and Radiobiology, Medical University Vienna, Waehringer Guertel 18 20, A 1090 Vienna, Austria
    Phys Med Biol 50:399-411. 2005
    ..gamma area histogram), acceptance criteria for IMRT hybrid plans can be defined. For the interpretation of the gamma maps, distributions of the gamma angle and traditional evaluation methods, such as dose profiles, are still very useful...
  4. ncbi Interpolation and extrapolation of dose measurements with different detector sizes to improve the spatial resolution of radiotherapy dosimetry as demonstrated for helical tomotherapy
    Andrea McNiven
    Department of Medical Biophysics, University of Western Ontario and London Regional Cancer Centre, London, ON, N6A 4L6, Canada
    Phys Med Biol 49:3665-74. 2004
    ..This was done for five FBTs and demonstrated a sharp fall off in dose when the FBT decreased below 8 mm. Similar techniques can be applied to other IMRT techniques to improve the characterization of various beam parameters...
  5. ncbi Matchline dosimetry in step and shoot IMRT fields: a film study
    P Tangboonduangjit
    Department of Engineering Physics, University of Wollongong, NSW, Australia
    Phys Med Biol 49:N287-92. 2004
    ..In conclusion, relative doses measured by radiographic and radiochromic films agree well with IC4 within +/-2%...
  6. ncbi Evaluation and optimization of the new EBT2 radiochromic film dosimetry system for patient dose verification in radiotherapy
    L Richley
    Bristol Haematology and Oncology Centre, Bristol BS28ED, UK
    Phys Med Biol 55:2601-17. 2010
    ..Our results suggest that EBT2 film is a valid alternative, rather than a direct replacement for EBT film...
  7. ncbi Precise radiochromic film dosimetry using a flat-bed document scanner
    Slobodan Devic
    Medical Physics Department, McGill University Health Centre, Montreal, Quebec H3G IA4, Canada
    Med Phys 32:2245-53. 2005
    ..4 Gy in the case of the EBT (Prototype A), and for doses above 5 Gy in the case of the HS model GafChromic film using a region of interest 2 X 2 mm2 in size...
  8. ncbi Time-limited fluoroscopy to reduce radiation exposure during ERCP: a prospective randomized trial
    Lance T Uradomo
    Division of Gastroenterology and Hepatology, University of Maryland Medical Center, Baltimore, Maryland 21201, USA
    Gastrointest Endosc 66:84-9. 2007
    ..Measures should be used to limit radiation exposure of the staff and patients during ERCP...
  9. ncbi Evaluation of a glassless photographic film scanner for high-gradient radiochromic film dosimetry
    A De Puysseleyr
    Department of Radiotherapy, Ghent University Hospital, De Pintelaan 185, 9000 Ghent, Belgium
    Phys Med Biol 57:127-42. 2012
    This study evaluates the performance of the Nikon Coolscan 9000 ED film scanner for high-gradient radiochromic film dosimetry. As a reference for comparison, analogue experiments were performed on the Epson Expression 10000XL flatbed ..
  10. ncbi The use of film dosimetry of the penumbra region to improve the accuracy of intensity modulated radiotherapy
    Mark R Arnfield
    Department of Radiation Oncology, McKay Dee Hospital Center, Ogden, Utah 84403, USA
    Med Phys 32:12-8. 2005
    ..This source of error can be rectified by the use of film dosimetry for penumbra measurements because of its high spatial resolution...
  11. ncbi Development of a novel quality assurance system based on rolled-up and rolled-out radiochromic films in volumetric modulated arc therapy
    Ji Yeon Park
    Department of Biomedical Engineering and Research Institute of Biomedical Engineering, College of Medicine, The Catholic University of Korea, Seoul 137 701, Korea
    Med Phys 38:6688-96. 2011
    ..To develop a cylindrical phantom with rolled-up radiochromic films and dose analysis software in the rolled-out plane for quality assurance (QA) in volumetric modulated arc therapy (VMAT)...
  12. ncbi Analysis of post-exposure density growth in radiochromic film with respect to the radiation dose
    Katsumi Shima
    Department of Radiation Oncology and Medical Physics, Graduate School of Medicine, Sapporo Medical University, Japan
    J Radiat Res 53:301-5. 2012
    The post-exposure density growth (PEDG) is one of the characteristics of radiochromic film (RCF). In film dosimetry using RCF and a flatbed scanner, pixel values read out from the RCF are converted to dose (hereafter, film dose) by using ..
  13. pmc Evaluation of triple channel correction acquisition method for radiochromic film dosimetry
    Naoki Hayashi
    Faculty of Radiological Technology, School of Health Sciences, Fujita Health University, 1 98, Dengakugakubo, Kutsukake cho, Toyoake, 470 1192, Japan
    J Radiat Res 53:930-5. 2012
    ..purpose of this study was to evaluate the triple channel correction acquisition (TCCA) method for radiochromic film dosimetry performed with a flatbed scanner. The study had two parts: a fundamental and a clinical examination...
  14. pmc Three-dimensional radiochromic film dosimetry for volumetric modulated arc therapy using a spiral water phantom
    Masao Tanooka
    Department of Radiology, Hyogo College of Medicine, 1 1, Mukogawa cho, Nishinomiya City, Hyogo, 663 8501, Japan
    J Radiat Res 54:1153-9. 2013
    We validated 3D radiochromic film dosimetry for volumetric modulated arc therapy (VMAT) using a newly developed spiral water phantom...
  15. ncbi Analysis of uncertainties in Gafchromic EBT film dosimetry of photon beams
    Mária Martisíková
    German Cancer Research Center DKFZ, Department of Medical Physics in Radiation Oncology, Im Neuenheimer Feld 280, D 69120 Heidelberg, Germany
    Phys Med Biol 53:7013-27. 2008
    ..There are many publications which discuss different aspects of the EBT film dosimetry. Unfortunately, they differ in the used protocols, scanning devices and variables used for the film darkening ..
  16. ncbi Radiochromic film dosimetry of HDR (192)Ir source radiation fields
    Saad Aldelaijan
    McGill University, Department of Radiation Oncology, Montréal, Québec, Canada
    Med Phys 38:6074-83. 2011
    ..A radiochromic film based dosimetry system for high dose rate (HDR) Iridium-192 brachytherapy source was described. A comparison between calibration curves established in water and Solid Water™ was provided...
  17. ncbi Radiochromic film dosimetry in water phantoms
    M J Butson
    City University of Hong Kong, Department of Physics and Materials Science, Kowloon Tong
    Phys Med Biol 46:N27-31. 2001
    ..Radiochromic film seems to be an adequate detector for dosimetry in a water phantom where high spatial resolution is needed and angle of beam incidence at the point of interest is important...
  18. ncbi Radiochromic film measurement of anisotropy function for high-dose-rate Ir-192 brachytherapy source
    S D Sharma
    Cattedra di Fisica Medica, Dipartimento di Scienze Cliniche e Biologiche, Universita degli Studi dell Insubria, 21100 Varese, Italy
    Phys Med Biol 49:4065-72. 2004
    ..The RCF method described in this paper is comparatively high resolution, simple to use and is a general method, which can be applied for other brachytherapy sources as well...
  19. ncbi Characterization and use of EBT radiochromic film for IMRT dose verification
    Omar A Zeidan
    Department of Radiation Physics, M D Anderson Cancer Center Orlando, 1400 South Orange Avenue, MP 730, Orlando, Florida 32806, USA
    Med Phys 33:4064-72. 2006
    ..Based on this study, we show that EBT film has several favorable features that allow for its use in routine IMRT patient-specific QA...
  20. ncbi Commissioning and quality assurance of RapidArc radiotherapy delivery system
    C Clifton Ling
    Varian Medical Systems, Palo Alto, CA, USA
    Int J Radiat Oncol Biol Phys 72:575-81. 2008
    ..We developed RapidArc system commissioning and quality assurance (QA) procedures...
  21. ncbi Dosimetric verification of intensity modulated radiation therapy of 172 patients treated for various disease sites: comparison of EBT film dosimetry, ion chamber measurements, and independent MU calculations
    Ellen E Wilcox
    Department of Radiation Oncology, Saint Francis Hospital and Medical Center, Hartford, CT 06105, USA
    Med Dosim 33:303-9. 2008
    ....
  22. ncbi Investigation of Kodak extended dose range (EDR) film for megavoltage photon beam dosimetry
    Indrin J Chetty
    Department of Radiation Oncology, The University of Michigan, Ann Arbor 48109 0010, USA
    Phys Med Biol 47:3629-41. 2002
    ..The results of this study indicate that Kodak EDR film may be a useful tool for relative dosimetry at higher dose ranges...
  23. ncbi Directional dependence in film dosimetry: radiographic and radiochromic film
    N Suchowerska
    School of Medical Radiation Science, University of Sydney, Lidcombe, Australia
    Phys Med Biol 46:1391-7. 2001
    ..In traditional radiotherapy, radiographic film dosimetry is commonly used...
  24. ncbi Study on the tongue and groove effect of the Elekta multileaf collimator using Monte Carlo simulation and film dosimetry
    Freddy Haryanto
    Department of Medical Physics, Radiooncologic University Clinic, Tubingen, Germany
    Strahlenther Onkol 180:57-61. 2004
    ..Due to the design of the leaf sides, the tongue and groove effect occurs for certain multileaf collimator applications such as the abutment of fields where the beam edges are defined by the sides of the leaves...
  25. ncbi Radiochromic film dosimetry with flatbed scanners: a fast and accurate method for dose calibration and uniformity correction with single film exposure
    L Menegotti
    Department of Medical Physics, S Chiara Hospital, APSS Trento, Italy
    Med Phys 35:3078-85. 2008
    b>Film dosimetry is an attractive tool for dose distribution verification in intensity modulated radiotherapy (IMRT)...
  26. ncbi The value of radiochromic film dosimetry around air cavities: experimental results and Monte Carlo simulations
    L Paelinck
    Division of Radiotherapy, Ghent University Hospital, De Pintelaan 185, B 9000 Gent, Belgium
    Phys Med Biol 48:1895-905. 2003
    In this study we investigate radiochromic film dosimetry around air cavities with particular focus on the perturbation of the dose distribution by the film when the film is parallel to the beam axis...
  27. ncbi On the characterization and uncertainty analysis of radiochromic film dosimetry
    Hugo Bouchard
    Departement de Physique, Universite de Montreal, Pavilion Roger Gaudry D 428, 2900 boul Edouard Montpetit, Montreal, Quebec, H3T 1J4, Canada
    Med Phys 36:1931-46. 2009
    ..Since the measurement uncertainty in Gafchromic film dosimetry is thought to be significant compared to that of ionization chambers, a rigorous method to evaluate ..
  28. ncbi GafChromic EBT film dosimetry with flatbed CCD scanner: a novel background correction method and full dose uncertainty analysis
    Sigrun Saur
    Department of Physics, The Norwegian University of Science and Technology, N 7491 Trondheim, Norway
    Med Phys 35:3094-101. 2008
    b>Film dosimetry using radiochromic EBT film in combination with a flatbed charge coupled device scanner is a useful method both for two-dimensional verification of intensity-modulated radiation treatment plans and for general quality ..
  29. ncbi Measurement of relative output factors for the 8 and 4 mm collimators of Leksell Gamma Knife Perfexion by film dosimetry
    Josef Novotny
    Department of Radiation Oncology, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania 15213, USA
    Med Phys 36:1768-74. 2009
    ..8% and +0.6% differences for 8 and 4 mm collimators, respectively). Based on the present values, no changes in the default relative output factor values were made in the treatment planning system...
  30. ncbi Spectromicroscopic film dosimetry for high-energy microbeam from synchrotron radiation
    Nobuteru Nariyama
    Japan Synchrotron Radiation Research Institute, Kouto 1 1 1, Sayo, Hyogo 679 5198, Japan
    Appl Radiat Isot 67:155-9. 2009
    ..7Gy/s, respectively. In a polymethylmethacrylate phantom, the peak-to-valley dose ratio decreased to 80 at a 1-mm depth. Doses calculated with the PENELOPE code agreed with those around the peak but became smaller in the valley...
  31. ncbi Calculation of the x-ray film response to heavy charged particle irradiation
    B Spielberger
    Gesellschaft fur Schwerionenforschung, Darmstadt, Germany
    Phys Med Biol 47:4107-20. 2002
    ..Based on this model calculation a data base of film responses was set up. This enables a three-dimensional dose verification with films in the heavy ion tumour therapy project at GSI, Darmstadt...
  32. ncbi IMRT delivery verification using a spiral phantom
    Susan L Richardson
    Department of Radiology, Baylor College of Medicine, Houston, Texas 77030, USA
    Med Phys 30:2553-8. 2003
    ..8 Gy fraction was 0.06 Gy for a TLD located in a high dose gradient region. This further validates the ability of the spiral phantom QA process to accurately verify delivery of an IMRT plan...
  33. ncbi Verification of IMRT fields by film dosimetry
    Marta Bucciolini
    Universita di Firenze and INFN, Dipartimento di Fisiopatologia Clinica, Viale Morgagni 85, Firenze 1 50134, Italy
    Med Phys 31:161-8. 2004
    ..The intrinsic limitation of film dosimetry is the sensitivity dependence on the field size and on the measurement depth...
  34. ncbi Evaluation of a 2D diode array for IMRT quality assurance
    Daniel Letourneau
    Department of Radiation Oncology, William Beaumont Hospital, 3601 W Thirteen Mile Road, Royal Oak, MI 48073, USA
    Radiother Oncol 70:199-206. 2004
    ..The goal of this work is to evaluate the dosimetric characteristics of a new 2D diode array (MapCheck from Sun Nuclear Corporation, Melbourne, Florida) and assess the role it can play in routine IMRT QA...
  35. ncbi Comparison of film dosimetry techniques used for quality assurance of intensity modulated radiation therapy
    Sang Gyu Ju
    Department of Radiation Oncology, Samsung Medical Center Sungkyunkwan University School of Medicine, 50 Ilwon Dong, Kangnam Ku, Seoul 135 710, Korea
    Med Phys 37:2925-33. 2010
    ..Therefore, a comparison study was conducted to assess the accuracy of various film dosimetry techniques that are widely used in clinics.
  36. ncbi Important considerations for radiochromic film dosimetry with flatbed CCD scanners and EBT GAFCHROMIC film
    Bart D Lynch
    Department of Nuclear Engineering, University of Florida, Gainesville, Florida 32611 8300, USA
    Med Phys 33:4551-6. 2006
    ..present three significant artifacts that have the potential to negatively impact the accuracy and precision of film dosimetry measurements made using GAFCHROMIC EBT radiochromic film when read out with CCD flatbed scanners...
  37. ncbi Precautions and strategies in using a commercial flatbed scanner for radiochromic film dosimetry
    L Paelinck
    Department of Radiotherapy, Ghent University Hospital, De Pintelaan 185, B 9000 Gent, Belgium
    Phys Med Biol 52:231-42. 2007
    The purpose of this study was to investigate the value of a commercially available flatbed scanner for film dosimetry with radiochromic film for external radiotherapy...
  38. ncbi Application of high-resolution radiochromic film dosimetry in verifying a small-field stereotactic radiosurgery plan
    K Y Lee
    Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong
    Appl Radiat Isot 64:934-9. 2006
    A high-resolution radiochromic film dosimetry (Hr-RCFD) method has been applied to verify a small-field stereotactic radiosurgery (SRS) plan...
  39. ncbi A comprehensive study of the Gafchromic EBT2 radiochromic film. A comparison with EBT
    C Andres
    Unidad de Radiofísica, Hospital Clinico Universitario, Valladolid 47003, Spain
    Med Phys 37:6271-8. 2010
    ..In particular, EBT was accepted by the scientific community as a reference two-dimensional detector. Recently, Gafchromic EBT2 has replaced old film, providing new improvements in both accuracy and handling...
  40. ncbi A novel method of radiochromic film dosimetry using a color scanner
    Oliver Hupe
    Physikalisch Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
    Med Phys 33:4085-94. 2006
    ..Investigations on both film types, HS and MD55-2, as well as on the new EBT film have been carried out...
  41. ncbi Radiochromic film dosimetry of rectal inhomogeneity and applicator attenuation in high dose rate brachytherapy of uterine cervix
    Satish C Uniyal
    Department of Radiology, Himalayan Institute of Medical Sciences, HIHT University, Jolly Grant, Dehradun 248140, India
    J Appl Clin Med Phys 13:3654. 2012
    ..attenuation in the HDR Ir-192 brachytherapy treatment of carcinoma uterine cervix by utilizing GAFCHROMIC EBT2 film dosimetry. The dose to rectal walls under the condition of rectal air heterogeneity was measured experimentally using ..
  42. ncbi Radiochromic film dosimetry of a high dose rate beta source for intravascular brachytherapy
    D M Duggan
    Center for Radiation Oncology, The Vanderbilt Clinic, Vanderbilt University Medical Center, Nashville, Tennessee 37232 5671, USA
    Med Phys 26:2461-4. 1999
    ..5 mm. Radiochromic film dosimetry has been used to measure the dose distribution in a plane parallel to and at a radial distance of 2 mm from ..
  43. ncbi Multichannel film dosimetry with nonuniformity correction
    Andre Micke
    International Specialty Products, 1361 Alps Road, Wayne, New Jersey 07470, USA
    Med Phys 38:2523-34. 2011
    A new method to evaluate radiochromic film dosimetry data scanned in multiple color channels is presented...
  44. ncbi Measurements of Gamma-Knife helmet output factors using a radiophotoluminescent glass rod dosimeter and a diode detector
    Fujio Araki
    Department of Radiological Technology, Kumamoto University College of Medical Science, Kumamoto 862 0976, Japan
    Med Phys 30:1976-81. 2003
    ..The Gamma-Knife helmet output factors measured with the silicon diode detector are corrected for angular dependence...
  45. ncbi Optically stimulated luminescence (OSL) of carbon-doped aluminum oxide (Al2O3:C) for film dosimetry in radiotherapy
    V Schembri
    Department of Radiation Oncology, Erasmus MC, Rotterdam, The Netherlands
    Med Phys 34:2113-8. 2007
    ..Here we have investigated basic characteristics of optically stimulated luminescence (OSL) of irradiated films containing carbon-doped aluminum oxide (Al2O3:C) for dosimetry in therapeutic photon and electron beams...
  46. ncbi An intercomparison between film dosimetry and diode matrix for IMRT quality assurance
    F Banci Buonamici
    SOD Fisica Medica, Azienda Ospedaliero Universitaria Careggi viale Morgagni 85, I 50134 Firenze, Italy
    Med Phys 34:1372-9. 2007
    ..b>Film dosimetry has been widely adopted for this purpose due to excellent film characteristics in terms of spatial resolution; ..
  47. ncbi High precision film dosimetry with GAFCHROMIC films for quality assurance especially when using small fields
    Andreas Mack
    Gamma Knife Center, Schleusenweg 2 16, NG 95, 60528 Frankfurt, Germany
    Med Phys 30:2399-409. 2003
    ..Special software routines have been implemented for evaluating and handling the film data...
  48. ncbi Accurate dosimetry with GafChromic EBT film of a 6 MV photon beam in water: what level is achievable?
    L J van Battum
    Physics and Medical Technology, Academic Hospital Free University Amsterdam, P O Box 7057 1007 MB Amsterdam, The Netherlands
    Med Phys 35:704-16. 2008
    ..At last we advise to check a new film batch on its characteristics compared to available information, before using that batch for absolute dose measurements...
  49. ncbi New developments in radiochromic film dosimetry
    C G Soares
    National Institute of Standards and Technology, Gaithersburg, MD, USA
    Radiat Prot Dosimetry 120:100-6. 2006
    ..Film uniformities were found to be good, on the order of 6% peak to peak. However, there is a strong polarisation effect in the samples examined, requiring care in film orientation during readout...
  50. ncbi Use of EPID for leaf position accuracy QA of dynamic multi-leaf collimator (DMLC) treatment
    J Chang
    Memorial Sloan Kettering Cancer Center, New York, New York 10021, USA
    Med Phys 31:2091-6. 2004
    ..central axis plane and was compared to the film measurements which were scanned and converted to dose using a film dosimetry system...
  51. ncbi Intensity-modulated radiation therapy: overlapping co-axial modulated fields
    P Metcalfe
    Centre for Medical Radiation Physics, University of Wollongong, NSW, Australia
    Phys Med Biol 49:3629-37. 2004
    ..5 cGy in a modulated field at d(max). While the magnitude of the dose differences are small improved round end leaf modelling combined with a finer dose calculation grid may minimize the discrepancy between calculated and delivered dose...
  52. ncbi A clinical application of an automated phantom-film QA procedure for validation of IMRT treatment planning and delivery
    Alexander Kapulsky
    Department of Radiation Oncology, Hackensack University Medical Center, Hackensack, NJ 17601, USA
    Med Dosim 29:279-84. 2004
    ..The films were analyzed using a commercial film dosimetry system...
  53. ncbi Design and implementation of a water phantom for IMRT, arc therapy, and tomotherapy dose distribution measurements
    Stefania Pallotta
    Dipartimento di Fisiopatologia Clinica, Universita degli Studi di Firenze, Florence, Italy
    Med Phys 34:3724-31. 2007
    ....
  54. ncbi Retrospective analysis of 2D patient-specific IMRT verifications
    Nathan L Childress
    Department of Radiation Physics, The University of Texas M D Anderson Cancer Center, 1515 Holcombe Boulevard, Unit 94, Houston, Texas 77030, USA
    Med Phys 32:838-50. 2005
    ..The data from this work could be useful as a reference for other clinics to indicate anticipated trends in 2D verifications under various conditions...
  55. ncbi Dose and energy dependence of response of Gafchromic XR-QA film for kilovoltage x-ray beams
    O Rampado
    Struttura Complessa Fisica Sanitaria, Azienda Ospedaliera San Giovanni Battista, Corso Bramante 88, 10126 Torino, Italy
    Phys Med Biol 51:2871-81. 2006
    ..Results of the analysis of the sensitivity to visible light indicated that a short exposure of this film to ambient and scanner light during the measurements will not have a significant impact on the radiation dosimetry...
  56. ncbi EDR2 film dosimetry for IMRT verification using low-energy photon filters
    Inhwan Jason Yeo
    Princess Margaret Hospital, University of Toronto, Toronto, Ontario M5G 2M9, Canada
    Med Phys 31:1960-3. 2004
    ..The effects of using a low energy scattered photon filter on EDR2 film dosimetry was also studied...
  57. ncbi Comparison of the epson expression 1680 flatbed and the vidar VXR-16 dosimetry PRO film scanners for use in IMRT dosimetry using gafchromic and radiographic film
    Ellen Wilcox
    Radiation Oncology, Saint Francis Hospital and Medical Center, 114 Woodland Street, Hartford, Connecticut 06105, USA
    Med Phys 34:41-8. 2007
    ..In the Epson scanner both films are rigidly immobilized and the light source scans over the film. It was found that the Epson scanner performed equally well with both types of film giving agreement to better than 90% in all indices...
  58. ncbi Beam modeling and verification of a photon beam multisource model
    Anders Ahnesjö
    Nucletron Scandinavia AB, Box 1704, 751 47 Uppsala, Sweden
    Med Phys 32:1722-37. 2005
    ..Internal, motorized wedges did yield slightly larger errors than external wedges. These results reflect the increased complexity, both experimentally and computationally, when wedges are used compared to open beams...
  59. ncbi Virtual micro MLC commissioning
    Laura Drever
    Medical Physics Department, Allan Blair Cancer Centre, Regina, Saskatchewan, S4S 1V4, Canada
    J Appl Clin Med Phys 6:1-11. 2005
    ..paper, we report on the commissioning of this feature using software testing, dial gauge measurements, and film dosimetry. We also identify a variety of limitations: software bugs and truncation artifacts, MLC leaf positioning ..
  60. ncbi Film dosimetry for fluoroscopic procedures: potential errors
    R E Morrell
    Medical Physics Directorate, Nottingham City Hospital, Hucknall Road, Nottingham NG5 1PB, UK
    Radiat Prot Dosimetry 114:147-9. 2005
    ..The overall uncertainty in dose was estimated to be between -20% and +40%, at 160 mGy. This uncertainty increases as the film approaches its saturation point. In addition, some unusual artefacts were observed...
  61. ncbi Influence of phantom material and phantom size on radiographic film response in therapy photon beams
    Asa Palm
    Department of Medical Physics, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, New York 10021, USA
    Med Phys 32:2434-42. 2005
    ..This study shows that differences in the configuration of the phantoms used for film dosimetry can explain much of the inconsistency for film response reported in the literature.
  62. ncbi A methodology for verification of radiotherapy dose calculation
    Nzhde Agazaryan
    Department of Radiation Oncology, David Geffen School of Medicine, University of California, Los Angeles, California 90095 6951, USA
    J Neurosurg 101:356-61. 2004
    ..Dosimetric accuracy of clinically active intensity-modulated radiotherapy (IMRT) and intensity-modulated radiosurgery (IMRS) programs was assessed using this methodology...
  63. ncbi Low dose fraction behavior of high sensitivity radiochromic film
    E Y Hirata
    University of Wisconsin Madison, Department of Medical Physics, Madison, Wisconsin 53706, USA
    Med Phys 32:1054-60. 2005
    ..These unexpected variations may indicate complex polymer kinetics at low doses. This type of film would require extra care beyond that described in TG-55 for accurate use at low doses or low dose fraction schemes...
  64. ncbi Evaluation of surface and build-up region dose for intensity-modulated radiation therapy in head and neck cancer
    Heeteak Chung
    Department of Nuclear and Radiological Engineering, University of Florida, Gainesville, Florida 32610, USA
    Med Phys 32:2682-9. 2005
    ..It was concluded that both TPSs overestimated the surface dose for both shallow and deep target cases. The amount of overestimation ranges from 400 to 1000 cGy (approximately 7.4% to 18.5% with respect to the prescribed dose, 5400 cGy)...
  65. ncbi The Schwarzschild effect of the dosimetry film Kodak EDR 2
    A Djouguela
    Pius Hospital Oldenburg, Clinic of Radiotherapy and Oncology, Medical Radiation Physics Working Group and University of Oldenburg, Oldenburg, Germany
    Phys Med Biol 50:N317-21. 2005
    ....
  66. ncbi Performance analysis of a film dosimetric quality assurance procedure for IMRT with regard to the employment of quantitative evaluation methods
    Peter Winkler
    Department of Radiation Oncology, University Medical School, Auenbruggerplatz 32, 8036 Graz, Austria
    Phys Med Biol 50:643-54. 2005
    ..9% and 0.8 mm respectively. Based on these results, we specified 5% dose difference and 3 mm distance-to-agreement as our tolerance levels for patient-specific quality assurance for IMRT treatments...
  67. ncbi Generation of wedge-shaped dose distributions through dynamic multileaf collimator dose delivery
    Jingeng Zhu
    Cancer Care Department, Provena Saint Joseph Medical Center, 333 North Madison Street, Joliet, Illinois 60435, USA
    J Appl Clin Med Phys 6:37-45. 2005
    ..e., 15 degrees, 30 degrees, 45 degrees, and 60 degrees). Film dosimetry is used for dose distribution verification...
  68. ncbi Dosimetry limitations and a dose correction methodology for step-and-shoot IMRT
    Grigor N Grigorov
    Medical Physics Department, Grand River Regional Cancer Center, 835 King Street West, Kitchener, ON N2G 1G3, Canada
    Phys Med Biol 51:637-52. 2006
    ..The results of this work can be used to improve the agreement between the planned and delivered doses for IMRT...
  69. ncbi Detection of IMRT delivery errors using a quantitative 2D dosimetric verification system
    Nathan L Childress
    Department of Radiation Physics, The University of Texas M D Anderson Cancer Center, Houston, Texas 77030, USA
    Med Phys 32:153-62. 2005
    ....
  70. ncbi Quantitative analysis of patient-specific dosimetric IMRT verification
    G J Budgell
    North Western Medical Physics, Christie Hospital NHS Trust, Manchester M20 4BX, UK
    Phys Med Biol 50:103-19. 2005
    ..Planning and delivery systems which cannot meet the required standards of accuracy, reproducibility and stability to reduce verification will not be accepted by the radiotherapy community...
  71. ncbi GafChromic RTQA film for routine quality assurance of high-energy photon beams
    M D R Thomas
    Joint Department of Physics, Royal Marsden Hospital, Downs Road, Sutton SM2 5PT, UK
    Phys Med Biol 51:1439-47. 2006
    ..5 mm. However, the measurement of absolute dose is subject to errors of about 25 cGy...
  72. ncbi Comparison of Monte Carlo calculations around a Fletcher Suit Delclos ovoid with radiochromic film and normoxic polymer gel dosimetry
    Kent A Gifford
    Department of Radiation Physics, The University of Texas M D Anderson Cancer Center, Houston, Texas 77030, USA
    Med Phys 32:2288-94. 2005
    ..5.c can calculate dose accurately in the presence of the ovoid shields, that RCF and MAGIC gel can demonstrate the effect of ovoid shields on the dose distribution and the ovoid shields reduce the dose by as much as 50%...
  73. ncbi Clinical helical tomotherapy commissioning dosimetry
    John Balog
    TomoTherapy Incorporated, Madison, Wisconsin 53717, USA
    Med Phys 30:3097-106. 2003
    ..Many beam characteristics can be measured automatically by an included megavoltage computed tomography imaging system. This greatly improves data collection efficiency...
  74. ncbi Physical aspects of dynamic stereotactic radiosurgery with very small photon beams (1.5 and 3 mm in diameter)
    Kamen A Paskalev
    McGill University Health Centre, Montreal General Hospital, 1650 Avenue Cedar, Montreal, Quebec H3G 1A4, Canada
    Med Phys 30:111-8. 2003
    ..The results showed that dynamic radiosurgery with very small beams has a potential for clinical use...
  75. ncbi Dosimetric verification of x-ray fields with steep dose gradients using an electronic portal imaging device
    S C Vieira
    Department of Radiotherapy, Division of Clinical Physics, Erasmus MC Daniel den Hoed Cancer Center, Groene Hilledijk 301, 3075 EA Rotterdam, The Netherlands
    Phys Med Biol 48:157-66. 2003
    ..03 cm in the penumbra region. These results indicate that the EPID is well suited for accurate dosimetric verification of steep gradient x-ray fields...
  76. ncbi Dosimetric considerations for validation of a sequential IMRT process with a commercial treatment planning system
    P Cadman
    Department of Medical Physics, Saskatoon Cancer Centre, Saskatchewan, Canada
    Phys Med Biol 47:3001-10. 2002
    ..We found the dosimetric validation service provided by the RPC to be a valuable component of our IMRT validation efforts...
  77. ncbi Dosimetry and mechanical accuracy of the first rotating gamma system installed in North America
    Hideo D Kubo
    Department of Radiation Oncology, UC Davis Cancer Center, Sacramento, California 95817, USA
    Med Phys 29:2497-505. 2002
    ..Therefore, RGSu should be capable of achieving stereotactic radiosurgery with the same degree of dosimetric and mechanical accuracy as with the Gamma-Knife...
  78. ncbi Dosimetric accuracy of the ITP inverse treatment planning system
    Arthur J Olch
    Radiation Oncology Program, Childrens Hospital Los Angeles, 4650 Sunset Blvd, MS 54, Los Angeles, California 90027, USA
    Med Phys 29:2484-8. 2002
    ..7% +/- 2%, and the distance to agreement for isodoses between 20% and 90% was 1.4 mm +/- 1 mm. This agreement is at least as good as that found for standard wedged fields in most treatment planning systems...
  79. ncbi Precision dosimetry for narrow photon beams used in radiosurgery-determination of Gamma Knife output factors
    Andreas Mack
    Gamma Knife Center Munich, Munich, Germany
    Med Phys 29:2080-9. 2002
    ..The measured output factors for the 8 mm and 14 mm collimator helmets are 0.9578 +/- 0.0057 and 0.9870 +/- 0.0086, respectively...
  80. ncbi IMRT verification by three-dimensional dose reconstruction from portal beam measurements
    M Partridge
    DKFZ Heidelberg, Germany
    Med Phys 29:1847-58. 2002
    ..Planned and reconstructed dose distributions are compared, with the reconstructed relative dose distribution also being compared to film measurements...
  81. ncbi The value of radiographic film for the characterization of intensity-modulated beams
    C Martens
    Division of Radiotherapy, Ghent University Hospital, Gent, Belgium
    Phys Med Biol 47:2221-34. 2002
    ..In shielded organs at risk the deviations can mount to about 3%, depending on the film batch. In conclusion, radiographic film is a suitable detector for characterizing IM beams in a plane at reference depth...
  82. ncbi Benchmarking beam alignment for a clinical helical tomotherapy device
    John Balog
    TomoTherapy Incorporated, Madison, Wisconsin 53717, USA
    Med Phys 30:1118-27. 2003
    ..These detectors have proved capable of performing some alignment verification tests. That is particularly advantageous because those tests can then be automated and easily performed on an ongoing basis...
  83. ncbi Dosimetric characteristics of the Elekta Beam Modulator
    I Patel
    North Western Medical Physics, Radiotherapy Department, Rosemere Cancer Centre, Royal Preston Hospital, UK
    Phys Med Biol 50:5479-92. 2005
    ..The maximum interleaf leakage was found to be 1.7% and the average leaf transmission less than 1.0%. No major differences were observed in leakage and transmission with changing gantry angle...
  84. ncbi The volume effect of detectors in the dosimetry of small fields used in IMRT
    Wolfram U Laub
    Department of Medical Physics, University of Tubingen, Germany
    Med Phys 30:341-7. 2003
    ....
  85. ncbi Film dosimetry in the peripheral region using multiple sensitometric curves
    Robin L Stern
    Department of Radiation Oncology, University of California, Davis, Sacramento, California 95817, USA
    Med Phys 31:327-32. 2004
    We present a method for applying film dosimetry to the peripheral region utilizing multiple sensitometric curves...
  86. ncbi Geometric leaf placement strategies
    J D Fenwick
    Department of Physics, Clatterbridge, Centre for Oncology, Clatterbridge Road, Bebington, Wirral CH63 4JY, UK
    Phys Med Biol 49:1505-19. 2004
    ....
  87. ncbi Simplified intensity-modulated arc therapy for dose escalated prostate cancer radiotherapy
    G Bauman
    Departments of Radiation Oncology, London Regional Cancer Centre and the University of Western Ontario, London, Ontario, Canada
    Med Dosim 29:18-25. 2004
    ..On the basis of this analysis, we have commenced a clinical pilot study of SIMAT for prostate cancer radiotherapy...
  88. ncbi Surface and build-up region dosimetry for obliquely incident intensity modulated radiotherapy 6 MV x rays
    Nesrin Dogan
    Loyola University Chicago Medical Center, Department of Radiation Oncology, Maywood, Illinois 60153, USA
    Med Phys 30:3091-6. 2003
    ..The PDDs of 75 degrees, 6 cm x 6 cm IMRTstrip beam at the surface and 5 mm were lower by 6.7% and 2.4%, respectively, compared to the open field. This study showed that IMRT itself is not contributing to greater skin doses...
  89. ncbi A dose delivery verification method for conventional and intensity-modulated radiation therapy using measured field fluence distributions
    Wendel Dean Renner
    Math Resolution, LLC, 5975 Gales Lane, Columbia, Maryland 21045, USA
    Med Phys 30:2996-3005. 2003
    ..The potential exists with a suitable electronic portal imaging system to reduce the quality assurance efforts, especially for IMRT...
  90. ncbi Measurement of dose reductions for superficial x-rays backscattered from bone interfaces
    Martin J Butson
    Department of Physics and Materials Science, City University of Hong Kong, Kowloon Tong, Hong Kong
    Phys Med Biol 53:N329-36. 2008
    ....
  91. ncbi Normalized sensitometric curves for the verification of hybrid IMRT treatment plans with multiple energies
    Dietmar Georg
    Division of Medical Radiation Physics, Department of Radiotherapy and Radiobiology, University of Vienna Medical School, Waehringer Guertel 18 20, A 1090 Vienna, Austria
    Med Phys 30:1142-50. 2003
    With the clinical implementation of time-variable dose patterns and intensity modulated radiotherapy (IMRT) film dosimetry has regained popularity...
  92. ncbi Rectal wall sparing by dosimetric effect of rectal balloon used during intensity-modulated radiation therapy (IMRT) for prostate cancer
    Bin S Teh
    Department of Radiology Section of Radiation Oncology, Baylor College of Medicine, The Methodist Hospital, Houston, TX 77030, USA
    Med Dosim 30:25-30. 2005
    ..DVH of the rectum was also evaluated. From film dosimetry, there was a dose reduction at the distal air-tissue interface as much as 60% compared with the same geometry ..
  93. ncbi Use of electron beam radiation for the reduction of Salmonella enterica serovars typhimurium and Tennessee in peanut butter
    A L Hvizdzak
    Animal and Nutritional Sciences, West Virginia University, Morgantown, West Virginia 26506, USA
    J Food Prot 73:353-7. 2010
    ..0 log CFU/g of Salmonella, and exposed to e-beam doses ranging from 0 to 3.1 kGy. Doses were confirmed with film dosimetry. Survivors were enumerated by standard spread plating on nonselective tryptic soy agar (TSA) and selective ..
  94. ncbi Patient and staff doses for some complex x-ray examinations
    T Olgar
    Faculty of Engineering, Department of Engineering Physics, Ankara University, Tandogan, Ankara, Turkey
    J Radiol Prot 29:393-407. 2009
    ..Dose measurements were made separately for each projection, and DAP, thermoluminescent dosimetry (TLD), film dosimetry and tube output measurement techniques were used...
  95. ncbi Evaluation of polymer gels and MRI as a 3-D dosimeter for intensity-modulated radiation therapy
    D A Low
    Mallinckrodt Institute of Radiology, St Louis, Missouri 63110, USA
    Med Phys 26:1542-51. 1999
    ..Ionization chamber, thermoluminescent dosimetry (TLD), and film dosimetry measurements of the IMRT dose distributions were obtained to compare against the gel results...
  96. ncbi Total occupational exposure during characterisation, conditioning and securing of radioactive sealed sources: a new dosimetric concept using active electronic dosimeters
    Ivica Prlić
    Institute for Medical Research and Occupational Health, Zagreb, Croatia
    Arh Hig Rada Toksikol 60:53-60. 2009
    ..In order to establish total occupational exposure, control radon measurement was performed in the immediate environment and the external Hazard index (Hex) was calculated...
  97. ncbi Cervical spine imaging using mini--C-arm fluoroscopy: patient and surgeon exposure to direct and scatter radiation
    Brian D Giordano
    Department of Orthopaedics, University of Rochester Medical Center, Rochester, NY 14642, USA
    J Spinal Disord Tech 22:399-403. 2009
    ..Direct and scatter radiation was measured during cadaveric cervical spine imaging with a mini-C-arm fluoroscope...
  98. pmc A comprehensive evaluation of the PRESAGE/optical-CT 3D dosimetry system
    H S Sakhalkar
    Department of Radiation Oncology Physics, Duke University Medical Center, Durham, North Carolina 27710, USA
    Med Phys 36:71-82. 2009
    ..The significance of this treatment was that it facilitated accurate film dosimetry in the axial plane, for independent verification...
  99. ncbi Effect of metal reconstruction plates on cobalt-60 dose distribution: a predictive formula and clinical implications
    E Melian
    Department of Radiotherapy of Loyola University Medical Center and the Edward Hines Jr Veterans Affairs Hospital, Maywood, IL 60153, USA
    Int J Radiat Oncol Biol Phys 44:725-30. 1999
    ..We sought to create a predictive formula for the dose perturbations caused by head and neck reconstruction plates in the delivery of postoperative radiotherapy with 60Co beams...
  100. ncbi Dosimetry of a W-188/Re-188 beta line source for endovascular brachytherapy
    U O Häfeli
    Cleveland Clinic Foundation, Radiation Oncology Department, Ohio 44195, USA
    Med Phys 27:668-75. 2000
    ....
  101. ncbi Retrospective biodosimetry among United States radiologic technologists
    Parveen Bhatti
    Radiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, DHHS, Bethesda, MD, USA
    Radiat Res 167:727-34. 2007
    ..S. radiologic technologists...

Research Grants11

  1. Center for Biophysical Assessment and Risk Management Following Irradiation
    Paul Okunieff; Fiscal Year: 2009
    ..traps in the carbonate of tooth enamel (or bone) and in sulfate of hair and nails, much in the same way as film dosimetry uses silver nitrate...
  2. COMBINED EFFECT OF RADIATION & ASBESTOS IN PRODUCING PUL
    TIMOTHY TAKARO; Fiscal Year: 2001
    ..Answers to these questions should improve the risk profiling of former USDOE workers as well as those involved in future remediation of radiation and asbestos contaminated sites. ..
  3. Real-time in Vivo Dosimetry in Radiation Therapy Using Scintillation Detectors
    Sam Beddar; Fiscal Year: 2009
    ..The resulting data can also be used to study dose- related treatment side effects. The ultimate goal of utilizing this method is to improve the delivery of radiotherapy treatments and the quality of life of radiotherapy patients. ..
  4. Diffusion of an Effective Skin Cancer Prevention Program
    Karen Glanz; Fiscal Year: 2007
    ..The findings will make a significant contribution to our understanding of skin cancer prevention behaviors of individuals and aquatics organizations. ..
  5. Increasing CRC Screening in Health Plan Members
    Karen Glanz; Fiscal Year: 2007
    ..abstract_text> ..
  6. ASTHMA HEALTH OUTCOMES FOLLOWING INTENSIVE CARE
    Mark Eisner; Fiscal Year: 2004
    ..This award will enable Dr. Eisner's continued progression to an independent clinical investigator. ..
  7. Better correlation of outcomes with MC dose calculation
    Indrin Chetty; Fiscal Year: 2007
    ..unreadable] [unreadable]..
  8. Telephone E-Health Communication for Improving Glaucoma Treatment Compliance
    Karen Glanz; Fiscal Year: 2009
    ..The findings from this study can inform future public health interventions for improving treatment compliance in vision health and other chronic conditions that require compliance with medication and other treatments. ..
  9. Four-dimensional IMAT planning using graph algorithms
    Cedric X Yu; Fiscal Year: 2010
    ..Successful achievement of the aforementioned project aims will provide planning and practical image guidance for the safe and efficient delivery of IMAT, and significantly improve cancer treatments. ..
  10. Disability and Health Outcomes in COPD
    Mark Eisner; Fiscal Year: 2008
    ..Based on this work, intervention strategies can be designed that target reduction of functional limitation and disability to improve downstream health outcomes. ..