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Abstract
The Gafchromic XR type R film is a suitable dosimeter to determine the map of the
skin dose in patients undergone complex interventional radiological procedures, such
as cardiology ones. The need of preventing or locating possible skin injuries due
to high doses administered to patients—as recommended by international organizations—wants
the introduction in patient dosimetry of a dosimeter easy to handle, with low dependence
of the response on energy in the typical radiological range, and extended measurable
dose range. XR type R films fulfil all these requirements and moreover may be quickly
analyzed by cheap commercial scanners. In order to determine skin-dose values by XR-R,
a film calibration curve is required.
In this work, validation of the XR-R dosimetry has been performed for the determination
of the skin dose: maximum skin-dose values in 14 patients undergone radiofrequency
ablation and pacemaker implant procedures have been determined by XR-R calibrated
films. A comparison between skin-dose values determined by XR-R films and retrospective
ionometric measurements has pointed out some discrepancies in the results, due to
difficulties in retrospectively reproducing the real procedure settings, where XR-R
film dosimetry is related to the specific patient procedure, even, in very complex
interventional settings.
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Article info
Publication history
Accepted:
June 21,
2006
Received in revised form:
March 21,
2006
Received in revised form:
June 20,
2006
Received:
October 20,
2005
Identification
Copyright
© 2006 Associazione Italiana di Fisica Medica. Published by Elsevier Inc. All rights reserved.
