Reconstruction with diffeomorphic motion compensation for undersampled dynamic MRI

Ganesh Adluru; Edward V. DiBella

doi:10.1117/12.2024046

26 September 2013 Reconstruction with diffeomorphic motion compensation for undersampled dynamic MRI

Ganesh Adluru, Edward V. DiBella

Proceedings Volume 8858, Wavelets and Sparsity XV; 88581X (2013) https://doi.org/10.1117/12.2024046
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

Abstract

We propose a compressed sensing type of reconstruction method that can handle large amounts of inter-frame motion by including diffeomorphic model-based registration steps within the iterative reconstruction. The method is useful for speeding up imaging of moving structures. It is also suitable for application to a newly proposed type of myocardial perfusion imaging that does not use ECG gating. Such an acquisition is a simpler alternative to conventional ECG gated acquisitions but requires severe undersampling of k-space data and more sophisticated reconstruction methods. The new methods and preliminary results are presented.

Citation Download Citation

Ganesh Adluru and Edward V. DiBella "Reconstruction with diffeomorphic motion compensation for undersampled dynamic MRI", Proc. SPIE 8858, Wavelets and Sparsity XV, 88581X (26 September 2013); https://doi.org/10.1117/12.2024046

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