Interventional 4-D Motion Estimation and Reconstruction of Cardiac Vasculature without Motion Periodicity Assumption
Rohkohl C, Lauritsch G, Prümmer M, Hornegger J (2009)
Publication Type: Authored book, Volume of book series
Publication year: 2009
Journal
Original Authors: Rohkohl C., Lauritsch G., Prümmer M., Hornegger J.
Publisher: Springer-verlag
Series: image reconstruction; motion estimation; motion compensation; dynamic reconstruction
City/Town: Heidelberg
Book Volume: Lecture Notes in Computer Science, 5761
Pages Range: 132-139
Event location: London
Journal Issue: null
ISBN: 978-3-642-04267-6
URI: http://www5.informatik.uni-erlangen.de/Forschung/Publikationen/2009/Rohkohl09-I4M.pdf
DOI: 10.1007/978-3-642-04268-3_17
Abstract
Anatomical and functional information of cardiac vasculature is a key component of future developments in the field of interventional cardiology. With the technology of C-arm CT it is possible to reconstruct intraprocedural 3-D images from angiographic projection data. Current approaches attempt to add the temporal dimension (4-D) by ECG-gating in order to distinct physical states of the heart. This model assumes that the heart motion is periodic. However, frequently arrhytmic heart signals are observed in a clinical environment. In addition breathing motion can still occur. We present a reconstruction method based on a 4-D time-continuous motion field which is parameterized by the acquisition time and not the quasi-periodic heart phase. The output of our method is twofold. It provides a motion compensated 3-D reconstruction (anatomic information) and a motion field (functional information). In a physical phantom experiment a vessel of size 3.08 mm undergoing a non-periodic motion was reconstructed. The resulting diameters were 3.42 mm and 1.85 mm assuming non-periodic and periodic motion, respectively. Further, for two clinical cases (coronary arteries and coronary sinus) it is demonstrated that the presented algorithm outperforms periodic approaches and is able to handle realistic irregular heart motion. © 2009 Springer-Verlag.
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APA:
Rohkohl, C., Lauritsch, G., Prümmer, M., & Hornegger, J. (2009). Interventional 4-D Motion Estimation and Reconstruction of Cardiac Vasculature without Motion Periodicity Assumption. Heidelberg: Springer-verlag.
MLA:
Rohkohl, Christopher, et al. Interventional 4-D Motion Estimation and Reconstruction of Cardiac Vasculature without Motion Periodicity Assumption. Heidelberg: Springer-verlag, 2009.
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