PROSPECTIVE CARDIAC GATING IN COMPUTED TOMOGRAPHY

摘要

A computed tomography scanner (10) acquires prospectively gated cardiac projection data. A scan controller (42) causes the scanner (10) to acquire projection data at the predicted location of a target cardiac phase in a cardiac cycle of the patient. An error determiner (44) determines an error between the target phase and the phase at which the projection data was actually acquired. Depending on the error, the patient is rescanned in a subsequent cardiac cycle.