Dose masking feature for BNCT radiotherapy planning

Details Dose masking feature for BNCT radiotherapy planning Dose masking feature for BNCT radiotherapy planning

1997-10-23

2000-04-11

Lateef, Marvin M.

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

A61B 505

Patent

active

060497297

ABSTRACT:
A system for displaying an accurate model of isodoses to be used in radiotherapy so that appropriate planning can be performed prior to actual treatment on a patient. The nature of the simulation of the radiotherapy planning for BNCT and Fast Neutron Therapy, etc., requires that the doses be computed in the entire volume. The "entire volume" includes the patient and beam geometries as well as the air spaces in between. Isodoses derived from the computed doses will therefore extend into the air regions between the patient and beam geometries and thus depict the unrealistic possibility that radiation deposition occurs in regions containing no physical media. This problem is solved by computing the doses for the entire geometry and then masking the physical and air regions along with the isodose contours superimposed over the patient image at the corresponding plane. The user is thus able to mask out (remove) the contour lines from the unwanted areas of the image by selecting the appropriate contour masking region from the raster image.

REFERENCES:
patent: 3987281 (1976-10-01), Hodes
patent: 4455609 (1984-06-01), Inamura et al.
patent: 4998268 (1991-03-01), Winter
patent: 5341292 (1994-08-01), Zamenhof

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