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Correction of misaligned slices in multi-slice cardiovascular magnetic resonance using slice-to-volume registration

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Author(s): Chandler Adam | Pinder Richard | Netsch Thomas | Schnabel Julia | Hawkes David | Hill Derek | Razavi Reza

Journal: Journal of Cardiovascular Magnetic Resonance
ISSN 1097-6647

Volume: 10;
Issue: 1;
Start page: 13;
Date: 2008;
Original page

ABSTRACT
Abstract A popular technique to reduce respiratory motion for cardiovascular magnetic resonance is to perform a multi-slice acquisition in which a patient holds their breath multiple times during the scan. The feasibility of rigid slice-to-volume registration to correct for misalignments of slice stacks in such images due to differing breath-hold positions is explored. Experimental results indicate that slice-to-volume registration can compensate for the typical misalignments expected. Correction of slice misalignment results in anatomically more correct images, as well as improved left ventricular volume measurements. The interstudy reproducibility has also been improved reducing the number of samples needed for cardiac MR studies.
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