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Title
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Investigation of Dose Variation with Minor Displacement in High Dose Radiation Brachytherapy.
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Creator
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Hyvärinen, Mikko, Curley, Casey Michael, Long, Samanthia, Graduate College, Herrera, Ramses, Dumitru, Nicolae, Pella, Silvia
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Abstract/Description
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High dose rate HDR brachytherapy dose distribution is highly localized and has a very sharp dose fall-off. Thus one of the most important part of the treatment is the localization and immobilization of the applicator from the implantation to the setup verification to the treatment delivery. The smallest motions of the patient can induce a small rotation, tilt, or translational movement of the applicator that can convert into miss of a significant part of the tumor or to over irradiating a...
Show moreHigh dose rate HDR brachytherapy dose distribution is highly localized and has a very sharp dose fall-off. Thus one of the most important part of the treatment is the localization and immobilization of the applicator from the implantation to the setup verification to the treatment delivery. The smallest motions of the patient can induce a small rotation, tilt, or translational movement of the applicator that can convert into miss of a significant part of the tumor or to over irradiating a nearby critical organ. The purpose of this study is to revise most of the HDR types of treatments with their applicators and their localization challenges. Since every millimeter of misplacement counts the study will look into the necessity of increasing the immobilization for several types of applicators. This study data indicates that an improvement of the immobilization devices for HDR is absolutely necessary. Better applicator fixation devices are required too. Developing new immobilization devices for all the applicators is recommended.
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Date Issued
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2014
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PURL
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http://purl.flvc.org/fau/fd/FA00005824
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Format
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Document (PDF)
