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Motion corrected silent ZTE neuroimaging

Ljungberg, Emil LU orcid ; Wood, Tobias C. ; Solana, Ana Beatriz ; Williams, Steven C.R. ; Barker, Gareth J. and Wiesinger, Florian (2022) In Magnetic Resonance in Medicine 88(1). p.195-210
Abstract

Purpose: To develop self-navigated motion correction for 3D silent zero echo time (ZTE) based neuroimaging and characterize its performance for different types of head motion. Methods: The proposed method termed MERLIN (Motion Estimation & Retrospective correction Leveraging Interleaved Navigators) achieves self-navigation by using interleaved 3D phyllotaxis k-space sampling. Low resolution navigator images are reconstructed continuously throughout the ZTE acquisition using a sliding window and co-registered in image space relative to a fixed reference position. Rigid body motion corrections are then applied retrospectively to the k-space trajectory and raw data and reconstructed into a final, high-resolution ZTE image. Results:... (More)

Purpose: To develop self-navigated motion correction for 3D silent zero echo time (ZTE) based neuroimaging and characterize its performance for different types of head motion. Methods: The proposed method termed MERLIN (Motion Estimation & Retrospective correction Leveraging Interleaved Navigators) achieves self-navigation by using interleaved 3D phyllotaxis k-space sampling. Low resolution navigator images are reconstructed continuously throughout the ZTE acquisition using a sliding window and co-registered in image space relative to a fixed reference position. Rigid body motion corrections are then applied retrospectively to the k-space trajectory and raw data and reconstructed into a final, high-resolution ZTE image. Results: MERLIN demonstrated successful and consistent motion correction for magnetization prepared ZTE images for a range of different instructed motion paradigms. The acoustic noise response of the self-navigated phyllotaxis trajectory was found to be only slightly above ambient noise levels (<4 dBA). Conclusion: Silent ZTE imaging combined with MERLIN addresses two major challenges intrinsic to MRI (i.e., subject motion and acoustic noise) in a synergistic and integrated manner without increase in scan time and thereby forms a versatile and powerful framework for clinical and research MR neuroimaging applications.

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author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
motion correction, neuroimaging, RUFIS, silent MRI, ZTE
in
Magnetic Resonance in Medicine
volume
88
issue
1
pages
16 pages
publisher
John Wiley & Sons Inc.
external identifiers
  • pmid:35381110
  • scopus:85127393897
ISSN
0740-3194
DOI
10.1002/mrm.29201
language
English
LU publication?
yes
id
10f2ebe0-9be7-4f4c-a7b6-55b8fc6b8d2f
date added to LUP
2022-05-18 14:30:48
date last changed
2025-12-13 16:09:15
@article{10f2ebe0-9be7-4f4c-a7b6-55b8fc6b8d2f,
  abstract     = {{<p>Purpose: To develop self-navigated motion correction for 3D silent zero echo time (ZTE) based neuroimaging and characterize its performance for different types of head motion. Methods: The proposed method termed MERLIN (Motion Estimation &amp; Retrospective correction Leveraging Interleaved Navigators) achieves self-navigation by using interleaved 3D phyllotaxis k-space sampling. Low resolution navigator images are reconstructed continuously throughout the ZTE acquisition using a sliding window and co-registered in image space relative to a fixed reference position. Rigid body motion corrections are then applied retrospectively to the k-space trajectory and raw data and reconstructed into a final, high-resolution ZTE image. Results: MERLIN demonstrated successful and consistent motion correction for magnetization prepared ZTE images for a range of different instructed motion paradigms. The acoustic noise response of the self-navigated phyllotaxis trajectory was found to be only slightly above ambient noise levels (&lt;4 dBA). Conclusion: Silent ZTE imaging combined with MERLIN addresses two major challenges intrinsic to MRI (i.e., subject motion and acoustic noise) in a synergistic and integrated manner without increase in scan time and thereby forms a versatile and powerful framework for clinical and research MR neuroimaging applications.</p>}},
  author       = {{Ljungberg, Emil and Wood, Tobias C. and Solana, Ana Beatriz and Williams, Steven C.R. and Barker, Gareth J. and Wiesinger, Florian}},
  issn         = {{0740-3194}},
  keywords     = {{motion correction; neuroimaging; RUFIS; silent MRI; ZTE}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{195--210}},
  publisher    = {{John Wiley & Sons Inc.}},
  series       = {{Magnetic Resonance in Medicine}},
  title        = {{Motion corrected silent ZTE neuroimaging}},
  url          = {{http://dx.doi.org/10.1002/mrm.29201}},
  doi          = {{10.1002/mrm.29201}},
  volume       = {{88}},
  year         = {{2022}},
}