Unfiltered radiation therapy

This is a new technique of producing high energy X-rays for radiation therapy at a patient's level. The dose delivery system uses a linear accelerator with no flattening filter. The technique improves patient radiation therapy by reducing radiation scattered to surrounding normal tissue and reducing electron contamination. It increases dose rate to shorten treatment time. The flattening filter reduces the efficiency of the beam by reducing the fluence and increasing scattered radiation. This technique involves removal of the flattening filter. It uses inverse planning to shape the dose distribution.
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Abstract/Description: This is a new technique of producing high energy X-rays for radiation therapy at a patient's level. The dose delivery system uses a linear accelerator with no flattening filter. The technique improves patient radiation therapy by reducing radiation scattered to surrounding normal tissue and reducing electron contamination. It increases dose rate to shorten treatment time. The flattening filter reduces the efficiency of the beam by reducing the fluence and increasing scattered radiation. This technique involves removal of the flattening filter. It uses inverse planning to shape the dose distribution.
Subject(s): A61N5/10
G21K1/04
G21K5/00
Date Issued: 2016-11-01
Title: Unfiltered radiation therapy.
Name(s): The University of Toledo, assignee
Parsai, E. Ishamel, inventor
Feldmeier, John J., inventor
Parsai, E. Ismael, inventor
Feildmeier, John J., inventor
Type of Resource: text
Genre: patent
Publisher: United States Patent and Trademark Office
Other Date: Date Filed: 2016-04-20
Date Issued: 2016-11-01
Physical Form: application/pdf
Extent: 14 p.
Abstract/Description: This is a new technique of producing high energy X-rays for radiation therapy at a patient's level. The dose delivery system uses a linear accelerator with no flattening filter. The technique improves patient radiation therapy by reducing radiation scattered to surrounding normal tissue and reducing electron contamination. It increases dose rate to shorten treatment time. The flattening filter reduces the efficiency of the beam by reducing the fluence and increasing scattered radiation. This technique involves removal of the flattening filter. It uses inverse planning to shape the dose distribution.
Identifier(s): utpatents-US9480859 (IID)
Patent No.: US9480859 (patno)
Appl. No.: 15/133275 (appno)
Subject(s): A61N5/10
G21K1/04
G21K5/00
Held by: United States Patent and Trademark Office (USPTO) Public Search Facility
Location: University of Toledo Digital Repository
Rights Statement: No Copyright - United States
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