Dose masking feature for BNCT radiotherapy planning

Patent · Sat Jan 01 00:00:00 EST 2000

OSTI ID:872949

Cook, Jeremy L ^[1]; Wessol, Daniel E ^[2]; Wheeler, Floyd J ^[3]

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1. Greeley, CO
2. Bozeman, MT
3. Idaho Falls, ID

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.

• Research Organization: Idaho National Laboratory (INL), Idaho Falls, ID (United States)
• DOE Contract Number: AC07-94ID13223
• Assignee: Bechtel BWXT Idaho, LLC (Idaho Falls, ID)
• Patent Number(s): US 6049729
• OSTI ID: 872949
• Country of Publication: United States
• Language: English

Related Subjects

dose
masking
feature
bnct
radiotherapy
planning
displaying
accurate
model
isodoses
appropriate
performed
prior
treatment
patient
nature
simulation
fast
neutron
therapy
etc
requires
doses
computed
entire
volume
beam
geometries
air
spaces
derived
extend
regions
depict
unrealistic
possibility
radiation
deposition
occurs
containing
physical
media
solved
computing
geometry
isodose
contours
superimposed
image
corresponding
plane
user
mask
remove
contour
lines
unwanted
selecting
region
raster
regions containing
fast neutron
bnct radiotherapy
radiotherapy planning
performed prior
entire volume
formed prior
deposition occurs
air space
air spaces
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