Dose-volume characteristics of a 50-kV electronic brachytherapy source for intracavitary accelerated partial breast irradiation.

Dose-volume characteristics of a 50-kV electronic brachytherapy source for intracavitary accelerated partial breast irradiation. Research Abstract Details 

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Dose-volume characteristics of a 50-kV electronic brachytherapy source for intracavitary accelerated partial breast irradiation. Abstract Text:

Melanie C Smitt,Rob Kirby,Melanie C Smitt,Rob Kirby,

PURPOSE: To describe dose-volume data from a 50-kV electronic brachytherapy source in intracavitary accelerated partial breast irradiation. METHODS AND MATERIALS: Three spherical balloon applicators were imaged on a CT scanner in a water phantom and inflated throughout their suggested fill volume range. The planning target volume (PTV) was defined as a 1-cm margin around the balloon surface. Plans were created achieving 80%, 85%, and 90% coverage of the PTV, with a prescription dose of 34Gy in 10 fractions. The PTV, V(90), V(100), V(150), V(200), and V(300) were recorded for each plan. RESULTS: For 80% target coverage, the V(200) varies from 11 to 14 cm(3) and the V(150) from 26 to 49 cm(3) over all the balloon applicators and fill volumes. For 85% coverage, the V(200) varies from 14 to 18 cm(3) and the V(150) from 27 to 53 cm(3). For 90% coverage, the V(200) varies from 16 to 22 cm(3) and the V(150)cm(3) from 30 to 61 cm(3). CONCLUSIONS: Fifty-kilovolt electronic brachytherapy can provide PTV coverage similar to (192)Ir in the setting of intracavitary accelerated partial breast irradiation.

Dose-volume characteristics of a 50-kV electronic brachytherapy source for intracavitary accelerated partial breast irradiation. Publishing Authors By Initials

MC Smitt,R Kirby,MC Smitt,R Kirby,

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Dose-volume characteristics of a 50-kV electronic brachytherapy source for intracavitary accelerated partial breast irradiation. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Brachytherapy

VOLUME: 6

Page Numbers: 207-11

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ISSN: 1538-4721

DAY: 7

MONTH: 08

YEAR: 2007

Dose-volume characteristics of a 50-kV electronic brachytherapy source for intracavitary accelerated partial breast irradiation. Information

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LANGUAGE: eng

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AFFILIATION: Department of Radiation Oncology, Stanford University, 875 Blake Wilbur Drive, Stanford, CA 94305, USA. melanies94028@yahoo.com

Country: United States

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MEDLINETA: Brachytherapy

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