Motion correction in respiratory gated cardiac PET/CT using multi-scale optical flow

Mohammad Dawood; Thomas Kösters; Michael Fieseler; Florian Büther; Xiaoyi Jiang; Frank Wübbeling; Klaus P Schäfers

doi:10.1007/978-3-540-85990-1_19

Motion correction in respiratory gated cardiac PET/CT using multi-scale optical flow

Med Image Comput Comput Assist Interv. 2008;11(Pt 2):155-62. doi: 10.1007/978-3-540-85990-1_19.

Authors

Mohammad Dawood¹, Thomas Kösters, Michael Fieseler, Florian Büther, Xiaoyi Jiang, Frank Wübbeling, Klaus P Schäfers

Affiliation

¹ Department of Computer Science, University of Münster, Germany. dawood@uni-muenster.de

PMID: 18982601
DOI: 10.1007/978-3-540-85990-1_19

Abstract

Respiratory motion is a source of degradation in positron emission tomography. As the patients cannot hold breath during the PET acquisition, spatial blurring and motion artifacts are unavoidable which may lead to wrong quantification of the data. A solution based on respiratory-gating and optical flow based correction of the PET data is proposed. This includes deformation of the CT data for accurate attenuation and listmode based reconstruction. All methods are applied to real patient data and are evaluated with respect to three criteria.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Algorithms
Artifacts
Coronary Angiography / methods
Coronary Artery Disease / diagnosis*
Gated Blood-Pool Imaging / methods*
Humans
Image Enhancement / methods*
Movement
Positron-Emission Tomography / methods*
Reproducibility of Results
Respiratory Mechanics*
Sensitivity and Specificity
Tomography, X-Ray Computed / methods*