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Apparatus and method for high dose rate brachytherapy radiation treatment

United States Patent

January 25, 2005
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A method and apparatus for the in vivo location and tracking of a radioactive seed source during and after brachytherapy treatment. The method comprises obtaining multiple views of the seed source in a living organism using: 1) a single PSPMT detector that is exposed through a multiplicity of pinholes thereby obtaining a plurality of images from a single angle; 2) a single PSPMT detector that may obtain an image through a single pinhole or a plurality of pinholes from a plurality of angles through movement of the detector; or 3) a plurality of PSPMT detectors that obtain a plurality of views from different angles simultaneously or virtually simultaneously. The plurality of images obtained from these various techniques, through angular displacement of the various acquired images, provide the information required to generate the three dimensional images needed to define the location of the radioactive seed source within the body of the living organism.
Macey; Daniel J. (Birmingham, AL), Majewski; Stanislaw (Grafton, VA), Weisenberger; Andrew G. (Yorktown, VA), Smith; Mark Frederick (Yorktown, VA), Kross; Brian James (Yorktown, VA)
Southeastern Universities Research Assn., Inc. (Newport News, VA)
10/ 247,450
September 19, 2002
The United States of America may have certain rights to this invention under Management and Operating Contract DE-AC05-84ER 40150 from the United States Department of Energy.