Vision system for radiotherapy machine control

摘要

In various embodiments, a system for controlling radiotherapy equipment in a treatment environment includes a controller for receiving, from one or more image capture devices, data indicating the position of one or more objects in the treatment environment. Based on the position data, the controller defines one or more exclusionary zones from which the radiotherapy equipment is excluded. Each zone has a buffer area surrounding one or more of the objects. The controller further directs the radiotherapy equipment such that a radiotherapy treatment plan is delivered without the equipment entering into the exclusionary zones.

主权项

1. A system for controlling radiotherapy equipment in a treatment environment, wherein a patient receives radiation therapy in the treatment environment, such that objects and at least one indicating device in the treatment environment may be exposed to radiation from the radiotherapy equipment, the system comprising:
a connection to one or more image capture devices for obtaining images of objects located within the treatment environment; a connection to the at least one indicating device located within the treatment environment, wherein the at least one indicating device includes at least one of an auditory indicator and a light source; and a controller for:
receiving, from the one or more image capture devices, data indicating a position of one or more objects in the treatment environment;defining, based at least in part on the position data and a range of movement of the one or more of the objects estimated before delivering a radiotherapy treatment, an exclusionary zone from which the radiotherapy equipment is excluded, the exclusionary zone comprising a buffer at least partially surrounding one or more of the objects, wherein defining the exclusionary zone further includes determining a surface normal distance for the buffer such that the exclusionary zone is sufficient to accommodate the estimated range of movement of the one or more of the objects during treatment;designing a radiotherapy treatment plan before delivering the radiotherapy treatment, wherein the radiotherapy treatment plan excludes the equipment from entering into the exclusionary zone;directing the radiotherapy equipment to deliver the radiotherapy treatment; andtransmitting a signal to the at least one indicating device, based in part on a location of the exclusionary zone and a determination that the equipment is positioned inside the exclusionary zone, for activating the at least one of the auditory indicator and the light source.