Methods and devices for orthovoltage ocular radiotherapy and treatment planning
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United States of America Patent
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May 5, 2015
Grant Date -
Feb 6, 2014
app pub date -
Jul 23, 2013
filing date -
Dec 23, 2007
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Abstract
A method, code and system for planning the treatment a lesion on or adjacent to the retina of an eye of a patient are disclosed. There is first established at least two beam paths along which x-radiation is to be directed at the retinal lesion. Based on the known spectral and intensity characteristics of the beam, a total treatment time for irradiation along each beam paths is determined. From the coordinates of the optic nerve in the aligned eye position, there is determined the extent and duration of eye movement away from the aligned patient-eye position in a direction that moves the patient's optic nerve toward the irradiation beam that will be allowed during treatment, while still maintaining the radiation dose at the patient optic nerve below a predetermined dose level.
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