Patent ID: 7881772
Filing Date: 2011-02-01
Classification: A61N,G01N

Abstract:
1. A method comprising: transmitting an electrical pulse while not transmitting radiation to imaging elements in order to initiate reading a first image frame from the imaging elements; reading the first image frame from the imaging elements; exposing the imaging elements to radiation emitted from a linear accelerator substantially immediately after the first image frame is read; detecting a linear accelerator pulse while the imaging elements are exposed to the radiation; in response to the linear accelerator pulse, transmitting a second electrical pulse while not transmitting radiation to the imaging elements in order to initiate reading a second image frame from the imaging elements; detecting a second linear accelerator pulse while the imaging elements are exposed to the radiation; determining that the second linear accelerator pulse was detected while the second image frame is being read from the imaging elements; detecting a third linear accelerator pulse while the imaging elements are exposed to the radiation, wherein no electrical pulse is transmitted to the imaging elements to initiate reading an image frame from the imaging elements between the detection of the second linear accelerator pulse and the detection of the third linear accelerator pulse; determining that the third linear accelerator pulse was not detected while the second image frame is being read from the imaging elements; in response to the determination that the third linear accelerator pulse was not detected while the second image frame is being read, transmitting a third electrical pulse to the imaging elements in order to initiate reading a third image frame from the imaging elements; and displaying the second image frame, and the third image frame to an operator.