title: Application of Gafchromic film in the dosimetry of an intravascular brachytherapy source.
abstract: The methodology of brachytherapy source dosimetry with Gafchromic MD 55-2 film (ISP Technologies, Inc.) is examined with an emphasis on the nonlinearity of the optical density-dose relation within the dynamic dose range, the radial distance-dependent measurement uncertainty, and the format of data presentation. The specific source chosen for this study was a Checkmate (Cordis Corporation) intravascular brachytherapy system. The two-dimensional dose distribution around the source was characterized by a comprehensive analysis of measurement uncertainties. A comparative analysis of the dosimetric data from the vendor and from the scientific literature showed a substantial consistency of the information available for the Checkmate source. Our two-dimensional dosimetric data for the Checkmate source trains is presented in the form of measured along and away dose tables.
authors.affiliation: Department of Therapeutic Radiology, Yale University School of Medicine, 20 York Street, New Haven, Connecticut 06443, USA. haijun.song@duke.edu
authors.forename: Haijun
authors.initials: H
authors.lastname: Song
authors.forename: D Eduardo
authors.initials: DE
authors.lastname: Roa
authors.forename: Ning
authors.initials: N
authors.lastname: Yue
authors.forename: Francesco
authors.initials: F
authors.lastname: d'Errico
authors.forename: Zhe
authors.initials: Z
authors.lastname: Chen
authors.forename: Ravinder
authors.initials: R
authors.lastname: Nath
mesh_terms: D001808:Blood Vessels / Q000528:radiation effects*; D001918:Brachytherapy / Q000379:methods*; D002138:Calibration; D005373:Film Dosimetry / Q000295:instrumentation* / Q000379:methods; D006801:Humans; D007496:Iridium Radioisotopes / Q000627:therapeutic use; D011829:Radiation Dosage; D011874:Radiometry; D011879:Radiotherapy Dosage; D014962:X-Ray Film
chemical_list: D007496:Iridium Radioisotopes