… using motion information derived directly from 4D PET images, … -averaged computed
tomography (CT) image, 31,32 the … MR imaging of the lungs is challenging due to the following …

… , where phantom SPECT images degraded by simulated respiratory motion are used to show
… to estimate the unknown respiratory motion and reduce the motion blur of clinical lung PET …

… Methods: A phantom simulating respiratory motion of the thorax with lung lesions (5
spheres with internal diameters of 10–28 mm) was scanned with 0, 1, 2, and 3 cm of …

… liver and lung can also be mispositioned on PET images when compared … motion correction
on PET images, considering potential to affect clinical management. The clinical MR images …

… The majority of patients included in this study had suspected liver or lung metastasis and
none of them had any abnormality in the heart. Thus, a diagnostic improvement by a cardiac …

… due to the compression and dilation of the lungs, which cause quantification errors. This …
image reconstruction and motion estimation in PET/CT, where the PET image and the motion …

… Conclusions: We clarified characteristics of QF in PET images for lung cancers; overall, QF
… The tumor in emphysematous background tended to be less affected by respiratory motion. …

… A curved photopenic region at the top of the liver and spleen in the PET image is also …
motion and may result in mislocalization on fused PET/CT images particularly in the lung bases …

… This study reveals the capability to reduce the breathing motion artifacts by gating PET
images in synchronization with respiration. The methodology was applied to 5 patients. A …

… on quantifying PET images of lung cancer J. Nucl. Med. 43 876–81 Nehmeh SA et al 2002b
Effect of respiratory gating on reducing lung motion artifacts in PET imaging of lung cancer …