Normalizing and calibrating therapeutic radiation delivery syste

Surgery – Truss – Pad

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128659, 2502521, A61B 600

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active

055115497

ABSTRACT:
The present invention is directed to a method for radiation beam therapy delivery system normalization and dose calibration. A prescribed treatment plan is compared to a database of pre-existing and pre-calibrated treatment plans. Upon existence of a matching plan, appropriate calibration factors are assigned to the delivery system monitors according to the pre-existing plan. Variations in delivery system operation are corrected by independent correction of all delivery system monitors established by standard relative calibration taken prior to patient treatment. The advantages of the present invention are particularly significant for proton therapy facilities containing a plurality of delivery systems. The method permits a prescribed treatment to be administered with accuracy not only at the station associated with the initial treatment planning, but at any available delivery station.

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Wong, C. K. et al., "Calibration procedure in dual-energy scanning using the basis function technique", Medical Physics, vol. 10, No. 5, Sep./Oct. 1993, pp. 628-635.
Siebers, J. V. et al., "Routine Quality Assurance for a Proton Radiation Therapy Facility", Proton Therapy Cooperative Group Spring 1992 Meeting.

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