Definitions for "Head frame"
The first frame in a clip of film or a segment of video.
Structure above the mine shaft containing the equipment necessary for lowering and raising equipment and personnel, and for raising the ore which is generally stored in a ore bin before being transported to the processing plant.
The head frame is a metal halo that is fixed to the patient's skull. It contains markings (fiducials), which are visualized on the CT and/or MRI image. Local anesthesia is used to secure the head frame into position with four micro-pins. Technologies such as the Gamma Knife use a head frame because they do not have image guidance capabilities.