University of Utah Research Foundation

Jason K Mendes

Dennis Lee Parker

Jordan Hulet

Systems and methods which generate a sequence of images using turbo spin echo magnetic resonance imaging which are retrospectively correlated with periodic motion occurring within a subject being imaged are described. In one embodiment, k-space measurements (or the measurements from which images are formed) are captured during, and correlated with, different phases in a cardiac cycle of the subject. With this sequence, the images that are produced are able to show, and/or compensate for, motion correlated with the cardiac cycle of the subject.

Retrospectively correlated turbo spin echo imaging

A self-navigating technique designed to detect motion in segmented sequences is disclosed. Certain embodiments compare a plurality of segments containing adjacent sets of k-space lines and produce an aliased error function which corresponds to a correlation of the segments. A global shift of the aliased error function may indicate the presence of in-plane rigid-body translation while other types of motion are evident in the dispersion or breadth of the error function. Some embodiments may then replace motion corrupted data with reacquired data. Further, some embodiments may correct or remove corrupted data retrospectively.

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Draper, UT, United States of America

Jason K Mendes