Premium
Dosimetry of 192 Ir wires for LDR interstitial brachytherapy following the AAPM TG‐43 dosimetric formalism
Author(s) -
Karaiskos P.,
Papagiannis P.,
Angelopoulos A.,
Sakelliou L.,
Baltas D.,
Sandilos P.,
Vlachos L.
Publication year - 2001
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.1339885
Subject(s) - dosimetry , brachytherapy , monte carlo method , formalism (music) , task group , dose rate , physics , nuclear medicine , anisotropy , medical physics , radiation therapy , mathematics , optics , medicine , radiology , engineering , art , musical , statistics , engineering management , visual arts
Implementation of the AAPM Task Group 43 dosimetric formalism for192 Ir wires used as interstitial sources in low dose‐rate (LDR) brachytherapy applications is investigated. Geometry factors, dose‐rate constant values, radial dose functions, and anisotropy functions, utilized in this formalism, were calculated for various lengths of all commercially available wire source designs by means of a well‐established Monte Carlo simulation code and an improved modification of the Sievert integral method. Results are presented in the form of look up tables that allow interpolation for dose‐rate calculations around all practically used wire lengths, with accuracy acceptable for clinical applications.