On-the-fly motion-compensated cone-beam CT using an a priori model of the respiratory motion

Respiratory motion causes artifacts in cone‐beam (CB) CT images acquired on slow rotating scanners integrated with linear accelerators. Respiration‐correlated CBCT has been proposed to correct for the respiratory motion but only a subset of the CB projections is used to reconstruct each frame of the 4D CBCT image and, therefore, adequate image quality requires long acquisition times. In this article, the authors develop an on‐the‐fly solution to...