Granted Patent B2

US 8,442,287 · App. 12/854,139 · Granted May 14, 2013

Abstract

Claims (15)

1. A method of determining whether a component of a radiation therapy system is operating within a dosimetric tolerance, the method comprising:

generating a treatment plan for a patient, the treatment plan specifying a radiation amount to be delivered to the patient;

delivering radiation to the patient according to the treatment plan;

obtaining feedback during the delivery of radiation, the feedback related to one of a position, a velocity, and an acceleration for one of a multi-leaf collimator, a gantry, a couch, and a jaws;

generating a mathematical model based on the feedback for one of the multi-leaf collimator, the gantry, the couch, and the jaws;

calculating a delivered dose amount based on the mathematical model and treatment plan information;

calculating a deviation in dose between the radiation amount specified in the treatment plan and the delivered dose amount; and

determining whether the deviation in dose is within a dosimetric tolerance for the one of the multi-leaf collimator, the gantry, the couch, and the jaws.

2. A method of determining whether a component of a radiation therapy system deviated from specified operation, the method comprising:

generating a treatment plan for a patient, the treatment plan specifying a radiation amount to be delivered to the patient;

delivering radiation to the patient according to the treatment plan;

obtaining feedback during the delivery of radiation, the feedback related to one of a position, a velocity, and an acceleration for one of a multi-leaf collimator, a gantry, a couch, and a jaws;

calculating a delivered dose amount based on the feedback;

calculating a deviation in dose between the radiation amount specified in the treatment plan and the delivered dose amount; and

adjusting one of the multi-leaf collimator, the gantry, the couch, and the jaws to minimize the deviation in dose.

Assignments (12)