Published in
Elsevier, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, (702), p. 59-63
DOI: 10.1016/j.nima.2012.09.039
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A dynamic thorax phantom for the assessment of cardiac and respiratory motion correction in PET/MRI: A preliminary evaluation
,
Fabian Gigengack,
Thomas Kösters,
Florian Büther,
Harald H. Quick,
Cornelius Faber,
Klaus P. Schäfers,
Xiaoyi Jiang,
Klaus P. Schaefers
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Abstract
Respiratory and cardiac motion are a known source of image degradation and quantification impairment in positron emission tomography (PET). In this study we use near-realistic PET/MRI data acquired using a custom-built human torso phantom capable of simulating respiratory and cardiac motion. We demonstrate that a significant reduction in motion-induced artifacts in PET data is possible using MR-derived motion estimates.