A Simplified Pipeline for Motion Correction in Dual Gated Cardiac PET

Lars Ruthotto, Fabian Gigengack, Martin Burger, Carsten H. Wolters, Xiaoyi Jiang, Klaus P. Schäfers, Jan Modersitzki


Positron Emission Tomography (PET) is a nuclear imaging technique of increasing importance e.g. in cardiovascular investigations. However, cardiac and respiratory motion of the patient degrade the image quality due to acquisition times in the order of minutes. Reconstructions without motion compensation are prone to spatial blurring and affected attenuation correction. These effects can be reduced by gating, motion correction and finally summation of the transformed images. This paper describes a new and systematic approach for the correction of both cardiac and respiratory motion. Key contribution is the splitting of the motion into respiratory and cardiac components, which are then corrected individually. For the considered gating scheme the number of registration problems is reduced by a factor of 3, which considerably simplifies the motion correction pipeline compared to previous approaches. The subproblems are stabilized by averaging cardiac gates for respiratory motion estimation and vice versa. The potential of the novel pipeline is evaluated in a group study on data of 21 human patients.
TitelBildverarbeitung für die Medizin 2012
Redakteure/-innenThomas Tolxdorff, Thomas Martin Deserno, Heinz Handels, Hans-Peter Meinzer
ErscheinungsortBerlin, Heidelberg
Herausgeber (Verlag)Springer Berlin Heidelberg
ISBN (Print)978-3-642-28501-1
ISBN (elektronisch)978-3-642-28502-8
PublikationsstatusVeröffentlicht - 16.03.2012
VeranstaltungWorkshop on Bildverarbeitung fur die Medizin 2012 - Berlin, Deutschland
Dauer: 18.03.201220.03.2012


Untersuchen Sie die Forschungsthemen von „A Simplified Pipeline for Motion Correction in Dual Gated Cardiac PET“. Zusammen bilden sie einen einzigartigen Fingerprint.