Radiation sensor arrays for use with brachytherapy
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United States of America Patent
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app pub date -
Jan 21, 2009
filing date -
Sep 22, 2005
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Abandoned
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Abstract
A radiation sensor array is carried on a flexible sheet of film, for placement on the skin of a patient adjacent to a brachytherapy location beneath the skin. With the array approximately centered on a position where radiation source to skin distance is estimated to be minimum, the array of sensors is used to monitor radiation dose received at the skin. With a controller connected to the array and preferably also to the radiation source in the applicator, the radiation dose received at all skin points of interest can be monitored, a point of maximum dose and a projected approach to limit dose can be calculated, and in response the system can warn the operator or control a brachytherapy procedure so as to discontinue radiation or control the radiation level or source position in real time. The system can also include percutaneous sensors.
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