Siemens Medical Systems, Inc.

Hussein Alrifai

Francisco Miguel Hernandez-Guerra

Edward Lewis Calderon

Simon John Forknall

David L Pond

Randall V Tarr

Pat Merola

A radiation therapy device (2) configured to receive a signal indicative of one or more of a patient's physiological parameters. The signal controls a gating, whereby a phase of an RF pulse (1002) and an injector pulse (1006) are varied so as to inhibit X-ray production without affecting injector or RF amplitudes.

System and method for gated radiotherapy based on physiological inputs

A system and method for radiation therapy delivery. Known delays are compensated for by applying a compensation factor to the dose at the start of the beam cycle. According to one embodiment of the invention, a dosimetry controller is configured to sense radiation on (RAD ON) and monitor the dose rate at the beginning of the beam cycle. The dosimetry controller then multiplies the dose rate by a compensation factor. Thus, for each beam cycle, the dosimetry controller resolves the magnitude of the lost dose rate data and compensates each segment accordingly.

Precision dosimetry in an intensity modulated radiation treatment system

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Pleasant Hill, CA, United States of America

Hussein Alrifai