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Article: Motion immune diffusion imaging using augmented MUSE for high-resolution multi-shot EPI

TitleMotion immune diffusion imaging using augmented MUSE for high-resolution multi-shot EPI
Authors
Issue Date2015
PublisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www.interscience.wiley.com/jpages/0740-3194/
Citation
Magnetic Resonance in Medicine, 2015 How to Cite?
AbstractPurpose: To develop new techniques for reducing the effects of microscopic and macroscopic patient motion in diffusion imaging acquired with high-resolution multishot echo-planar imaging. Theory: The previously reported multiplexed sensitivity encoding (MUSE) algorithm is extended to account for macroscopic pixel misregistrations, as well as motion-induced phase errors in a technique called augmented MUSE (AMUSE). Furthermore, to obtain more accurate quantitative diffusion-tensor imaging measures in the presence of subject motion, we also account for the altered diffusion encoding among shots arising from macroscopic motion. Methods: MUSE and AMUSE were evaluated on simulated and in vivo motion-corrupted multishot diffusion data. Evaluations were made both on the resulting imaging quality and estimated diffusion tensor metrics. Results: AMUSE was found to reduce image blurring resulting from macroscopic subject motion compared to MUSE but yielded inaccurate tensor estimations when neglecting the altered diffusion encoding. Including the altered diffusion encoding in AMUSE produced better estimations of diffusion tensors. Conclusion: The use of AMUSE allows for improved image quality and diffusion tensor accuracy in the presence of macroscopic subject motion during multishot diffusion imaging. © 2015 Wiley Periodicals, Inc.
Persistent Identifierhttp://hdl.handle.net/10722/210144
ISSN
2015 Impact Factor: 3.782
2015 SCImago Journal Rankings: 2.197

 

DC FieldValueLanguage
dc.contributor.authorGuhaniyogi, S-
dc.contributor.authorChu, ML-
dc.contributor.authorChang, HCC-
dc.contributor.authorSong, AW-
dc.contributor.authorChen, NK-
dc.date.accessioned2015-05-22T06:45:30Z-
dc.date.available2015-05-22T06:45:30Z-
dc.date.issued2015-
dc.identifier.citationMagnetic Resonance in Medicine, 2015-
dc.identifier.issn0740-3194-
dc.identifier.urihttp://hdl.handle.net/10722/210144-
dc.description.abstractPurpose: To develop new techniques for reducing the effects of microscopic and macroscopic patient motion in diffusion imaging acquired with high-resolution multishot echo-planar imaging. Theory: The previously reported multiplexed sensitivity encoding (MUSE) algorithm is extended to account for macroscopic pixel misregistrations, as well as motion-induced phase errors in a technique called augmented MUSE (AMUSE). Furthermore, to obtain more accurate quantitative diffusion-tensor imaging measures in the presence of subject motion, we also account for the altered diffusion encoding among shots arising from macroscopic motion. Methods: MUSE and AMUSE were evaluated on simulated and in vivo motion-corrupted multishot diffusion data. Evaluations were made both on the resulting imaging quality and estimated diffusion tensor metrics. Results: AMUSE was found to reduce image blurring resulting from macroscopic subject motion compared to MUSE but yielded inaccurate tensor estimations when neglecting the altered diffusion encoding. Including the altered diffusion encoding in AMUSE produced better estimations of diffusion tensors. Conclusion: The use of AMUSE allows for improved image quality and diffusion tensor accuracy in the presence of macroscopic subject motion during multishot diffusion imaging. © 2015 Wiley Periodicals, Inc.-
dc.languageeng-
dc.publisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www.interscience.wiley.com/jpages/0740-3194/-
dc.relation.ispartofMagnetic Resonance in Medicine-
dc.rightsMagnetic Resonance in Medicine. Copyright © John Wiley & Sons, Inc.-
dc.rightsSpecial Statement for Preprint only Before publication: 'This is a preprint of an article accepted for publication in [The Journal of Pathology] Copyright © ([year]) ([Pathological Society of Great Britain and Ireland])'. After publication: the preprint notice should be amended to follows: 'This is a preprint of an article published in [include the complete citation information for the final version of the Contribution as published in the print edition of the Journal]' For Cochrane Library/ Cochrane Database of Systematic Reviews, add statement & acknowledgement : ‘This review is published as a Cochrane Review in the Cochrane Database of Systematic Reviews 20XX, Issue X. Cochrane Reviews are regularly updated as new evidence emerges and in response to comments and criticisms, and the Cochrane Database of Systematic Reviews should be consulted for the most recent version of the Review.’ Please include reference to the Review and hyperlink to the original version using the following format e.g. Authors. Title of Review. Cochrane Database of Systematic Reviews 20XX, Issue #. Art. No.: CD00XXXX. DOI: 10.1002/14651858.CD00XXXX (insert persistent link to the article by using the URL: http://dx.doi.org/10.1002/14651858.CD00XXXX) (This statement should refer to the most recent issue of the Cochrane Database of Systematic Reviews in which the Review published.)-
dc.titleMotion immune diffusion imaging using augmented MUSE for high-resolution multi-shot EPI-
dc.typeArticle-
dc.identifier.emailChang, HCC: hccchang@hku.hk-
dc.identifier.authorityChang, HCC=rp02024-
dc.identifier.doi10.1002/mrm.25624-
dc.identifier.pmid25762216-
dc.identifier.scopuseid_2-s2.0-84924386278-
dc.publisher.placeUnited States-

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