Volume 72, Issue 1 pp. 68-79
Full Paper

Iterative k-t principal component analysis with nonrigid motion correction for dynamic three-dimensional cardiac perfusion imaging

Johannes F. M. Schmidt

Johannes F. M. Schmidt

Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland

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Lukas Wissmann

Lukas Wissmann

Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland

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Robert Manka

Robert Manka

Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland

Department of Cardiology, University Hospital Zurich, Zurich, Switzerland

Department of Radiology, University Hospital Zurich, Zurich, Switzerland

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Sebastian Kozerke

Corresponding Author

Sebastian Kozerke

Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland

Division of Imaging Sciences and Biomedical Engineering, King's College London, London, UK

Correspondence to: Sebastian Kozerke, Ph.D., Institute for Biomedical Engineering, University and ETH Zurich, Gloriastrasse 35, Zurich 8092, Switzerland. E-mail: [email protected]Search for more papers by this author
First published: 31 July 2013
Citations: 21

Abstract

Purpose

In this study, an iterative k-t principal component analysis (PCA) algorithm with nonrigid frame-to-frame motion correction is proposed for dynamic contrast-enhanced three-dimensional perfusion imaging.

Methods

An iterative k-t PCA algorithm was implemented with regularization using training data corrected for frame-to-frame motion in the x-pc domain. Motion information was extracted using shape-constrained nonrigid image registration of the composite of training and k-t undersampled data. The approach was tested for 10-fold k-t undersampling using computer simulations and in vivo data sets corrupted by respiratory motion artifacts owing to free-breathing or interrupted breath-holds. Results were compared to breath-held reference data.

Results

Motion-corrected k-t PCA image reconstruction resolved residual aliasing. Signal intensity curves extracted from the myocardium were close to those obtained from the breath-held reference. Upslopes were found to be more homogeneous in space when using the k-t PCA approach with motion correction.

Conclusions

Iterative k-t PCA with nonrigid motion correction permits correction of respiratory motion artifacts in three-dimensional first-pass myocardial perfusion imaging. Magn Reson Med 72:68–79, 2014. © 2013 Wiley Periodicals, Inc.

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