Patent ID: 7590218
Filing Date: 2009-09-15
Classification: A61N

Abstract:
1. A system to monitor a geometry of a radiation treatment apparatus to monitor a location of an origin and orientation of a coordinate system used to reference radiation beam and patient positioning to thereby detect a possible isocenter coordinate system definition failure so that a treatment plan can be more accurately applied to a patient, the system comprising: an application computer having a memory associated therewith, and a treatment plan stored in the memory to provide radiation treatment delivery instructions; a radiation treatment apparatus, in communication with the application computer, to provide radiation treatment to the patient, the radiation treatment apparatus including: a trackable body detector having a detector body positioned spaced apart from the treatment apparatus and having a receiver positioned to receive energy to thereby detect three-dimensional positions and to produce a plurality of position signals indicating three-dimensional coordinate positions; a trackable assembly positioned to be detected by the trackable body detector and including: a determiner in communication with the trackable body detector and the application computer and comprising: