A system and method relating to receiving manipulation data from a controller and a displaying a graphic representing the manipulation and the controller on a first display and transmitting the manipulation data for substantially-simultaneous on a second display remote from the first display. The gamma ray detector incorporates an additional array of \u201cveto\u201d detectors arranged adjacent or around a primary detector array. Optically anisotropic elements for correcting the optical anisotropy of each of the liquid crystal elements are disposed between the polarizing elements.