isocenter
Treatment beam intersection
The isocenter is the point in space where multiple beams or axes converge, most commonly in radiation therapy.
Treatment machines rotate around this fixed point, allowing precise targeting of tumors from multiple angles while minimizing damage to surrounding tissue: The tumor was positioned at the isocenter.
The term also appears in imaging and other applications where beams must intersect at a single point.
Energy propagation through space
- therapyCurative mental treatment
- oncologyCancer medicine specialty
- beamStructural support member
- dosimetryRadiation absorption measurement
treatment · planning · targeting · localization · precision · linear accelerator · gantry · collimator
Rotation reference line
- rotationTurning on an axis
- pivotPoint of rotation
- convergenceProcess of approaching sameness
- intersectionPoint where paths meet
centroid · coordinates · alignment · calibration · reference point · origin · fixed point · focal point
Degree of correctness
- alignmentCorrect relative positioning
- positioningArranging in specific locations
- verificationProving something accurate
- calibrationAdjusting for measurement accuracy
targeting · localization · tolerance · reproducibility · immobilization · quality assurance · setup · correction
radiation
Energy propagation through space
dosimetry · treatment · planning · targeting · localization · precision · linear accelerator · gantry · collimator · gamma knife
axis
Rotation reference line
- rotationTurning on an axis
- pivotPoint of rotation
- convergenceProcess of approaching sameness
intersection · centroid · coordinates · alignment · calibration · reference point · origin · fixed point · focal point · three-dimensional
accuracy
Degree of correctness
- alignmentCorrect relative positioning
- positioningArranging in specific locations
- verificationProving something accurate
calibration · targeting · localization · tolerance · reproducibility · immobilization · quality assurance · setup · correction · deviation
isocenterperiphery
Boundary or outer region
penumbra · off-center · margin · boundary
iso, center, centers, centered, centering, central, centrally, centralize, centralization