EdenteV2, Main, Exploration, bibRecord, 00C385

Backscatter radiation at bone-titanium interface from high-energy x and gamma rays

Identifieur interne : 00C385 ( Main/Exploration ); précédent : 00C384; suivant : 00C386

Backscatter radiation at bone-titanium interface from high-energy x and gamma rays

Auteurs : T. A. Mian [États-Unis] ; M. C. Van Putten Jr. [États-Unis] ; D. C. Kramer [États-Unis] ; R. F. Jacob [États-Unis] ; A. L. Boyer [États-Unis]

Source :

International Journal of Radiation Oncology, Biology, Physics [ 0360-3016 ] ; 1987.

RBID : ISTEX:14094EAC57A5A2E22D0E1DDB976DA31FA64A6591

Descripteurs français

Wicri :
- topic : Titane.

English descriptors

Abstract

Abstract: Occasionally head and neck cancer patients treated with high-energy X rays and gamma rays have titanium metal dental implants in their maxillae or mandibles. The resulting effect of the bone-metal interface on the radiation dose is of interest. Ionization measurements for 60Co gamma rays and 6 MV and 25 MV X rays were made. A thin-window parallel-plate chamber was used to determine tha magnitude of the dose enhancement that was due to the backscattered electrons from titanium. The results showed that for 60Co there is a 15% increase in dose to solid bone at the entrance side of the titanium. For higher energy X rays, the increase in dose was about the same or slightly lower than for 60Co. Monte Carlo calculations substantiated the measurements. This increase in dose fell off rapidly and became negligible at 1–2 mm from the interface. This backscattered dose should be taken into account when planning radiation therapy treatment for patients with dental implants.

Url:

https://api.istex.fr/document/14094EAC57A5A2E22D0E1DDB976DA31FA64A6591/fulltext/pdf

DOI: 10.1016/0360-3016(87)90364-6

Affiliations:

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Le document en format XML

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<term>Backscatter</term>
<term>Backscatter dose</term>
<term>Backscatter factor</term>
<term>Backscatter radiation</term>
<term>Backscattered</term>
<term>Backscattered dose</term>
<term>Backscattered electrons</term>
<term>Backscattered radiation</term>
<term>Bone material</term>
<term>Bone regeneration</term>
<term>Bone thickness</term>
<term>Clinical dentistry</term>
<term>Dose enhancement</term>
<term>Dose increase</term>
<term>Gamma rays</term>
<term>High energy</term>
<term>High energy electrons</term>
<term>Implant</term>
<term>Interface</term>
<term>Ionization</term>
<term>Metal objects</term>
<term>Monte carlo calculations</term>
<term>Oral maxillofac</term>
<term>Photon</term>
<term>Photon energy</term>
<term>Radiation level</term>
<term>Radiation oncology</term>
<term>Soft tissue</term>
<term>Therapeutic radiation</term>
<term>Titanium</term>
<term>Titanium implant</term>
<term>Titanium implants</term>
<term>Titanium plate</term>
<term>Titanium scatterer</term>
<term>Various thicknesses</term>
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<term>Backscatter dose</term>
<term>Backscatter factor</term>
<term>Backscatter radiation</term>
<term>Backscattered</term>
<term>Backscattered dose</term>
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<term>Bone regeneration</term>
<term>Bone thickness</term>
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<term>Dose increase</term>
<term>Gamma rays</term>
<term>High energy</term>
<term>High energy electrons</term>
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<term>Ionization</term>
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<front><div type="abstract" xml:lang="en">Abstract: Occasionally head and neck cancer patients treated with high-energy X rays and gamma rays have titanium metal dental implants in their maxillae or mandibles. The resulting effect of the bone-metal interface on the radiation dose is of interest. Ionization measurements for 60Co gamma rays and 6 MV and 25 MV X rays were made. A thin-window parallel-plate chamber was used to determine tha magnitude of the dose enhancement that was due to the backscattered electrons from titanium. The results showed that for 60Co there is a 15% increase in dose to solid bone at the entrance side of the titanium. For higher energy X rays, the increase in dose was about the same or slightly lower than for 60Co. Monte Carlo calculations substantiated the measurements. This increase in dose fell off rapidly and became negligible at 1–2 mm from the interface. This backscattered dose should be taken into account when planning radiation therapy treatment for patients with dental implants.</div>
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Backscatter radiation at bone-titanium interface from high-energy x and gamma rays

Backscatter radiation at bone-titanium interface from high-energy x and gamma rays

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri