There is an increasing interest in iterative reconstruction (IR) as a key tool to improve quality
and increase applicability of x-ray CT imaging. IR has the ability to significantly reduce …

Purpose: To establish a practical and accurate motion tracking method for the development
of rigid motion correction methods in helical x‐ray computed tomography (CT). Methods: A …

Previously we have proposed a reconstruction algorithm which corrects for known rigid
motion in helical CT. This paper describes a method to determine data-insufficiency of …

In previous work, we have demonstrated the feasibility of rigid motion correction for helical
CT brain imaging, using an optical motion tracking system. To correct for motion during …

This article proposes a new method for reconstructing two-dimensional (2D) computed
tomography (CT) images from truncated and motion contaminated sinograms. The type of …

Although current CT systems can scan the head in a very short time, patient motion
sometimes still induces artifacts. If motion occurs, one has to repeat the scan; to avoid …

During a CT scan, the patient should not move since the algorithms used to compute the
three dimensional images assume that the measured data provide information about a …

During a positron emission tomography (PET) scan the subject is required to be completely
stationary for the duration of the scan. Any motion of the subject will translate into motion blur …