Combined PET/computed tomography (CT) is of value in cancer diagnosis, follow-up, and
treatment planning. For cancers located in the thorax or abdomen, the patient's breathing …

With the arrival of increasingly higher-resolution PET systems, small amounts of motion can
cause significant blurring in the resulting images compared with the intrinsic resolution of the …

PET is a medical imaging modality with proven clinical value for disease diagnosis and
treatment monitoring. The integration of PET and CT on modern scanners provides a …

Cardiac and respiratory motion artefacts in PET imaging have been traditionally resolved by
acquiring the data in gated mode. However, gated PET images are usually characterized by …

Introduction Since their introduction in 2001, PET/CT systems have gained wide acceptance
primarily due to their inherent ability to combine functional and structural information about …

We present a novel intrinsic method for joint reconstruction of both image and motion in
positron emission tomography (PET). Intrinsic motion compensation methods exclusively …

In emission tomography imaging, respiratory motion causes artifacts in lungs and cardiac
reconstructed images, which lead to misinterpretations, imprecise diagnosis, impairing of …

In this paper, we propose and test a new iterative algorithm to simultaneously estimate the
nonrigid motion vector fields and the emission images for a complete cardiac cycle in gated …

Positron emission tomography (PET) is a powerful modality for numerous oncologic and
cardiac imaging applications. However, when PET is used for chest or upper abdomen …

In this paper, we investigate the benefits of a spatiotemporal approach for reconstruction of
image sequences. In the proposed approach, we introduce a temporal prior in the form of …