<unk>  <unk>  is a specific form of<unk><unk>  (CT) in which the X-ray tube is not mechanically spun in order to rotate the source of X-ray photons. This different design was explicitly developed to better image heart structures which never stop moving, performing a complete cycle of movement with each heart beat. As in conventional CT technology, the X-ray source-point moves along a circle in space around an object to be imaged. In EBT, however, the X-ray tube itself is large and stationary, and partially surrounds the imaging circle. Rather than moving the tube itself,<unk> -beam focal point (and hence the X-ray source point) is swept<unk> ically along a tungsten anode in the tube, tracing a large circular arc on its inner surface. This motion can be very fast.
Electron beam computed tomography
Digital X-ray radiogrammetry
X-ray image intensifier
Pulmonary examination
X-ray vision
Gamma camera
Respiratory examination
Emission computed tomography