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- Ljungberg, EmilLund University,Lunds universitet,Medicinsk strålningsfysik, Lund,Sektion V,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Medical Radiation Physics, Lund,Section V,Department of Clinical Sciences, Lund,Faculty of Medicine,King's College London (author)
Motion corrected silent ZTE neuroimaging
- Article/chapterEnglish2022
Publisher, publication year, extent ...
- 2022-04-05
- Wiley,2022
- 16 s.
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- LIBRIS-ID:oai:lup.lub.lu.se:10f2ebe0-9be7-4f4c-a7b6-55b8fc6b8d2f
- https://lup.lub.lu.se/record/10f2ebe0-9be7-4f4c-a7b6-55b8fc6b8d2fURI
- https://doi.org/10.1002/mrm.29201DOI
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- Language:English
- Summary in:English
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- 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.
Subject headings and genre
- MEDICIN OCH HÄLSOVETENSKAP Klinisk medicin Radiologi och bildbehandling hsv//swe
- MEDICAL AND HEALTH SCIENCES Clinical Medicine Radiology, Nuclear Medicine and Medical Imaging hsv//eng
- motion correction
- neuroimaging
- RUFIS
- silent MRI
- ZTE
Added entries (persons, corporate bodies, meetings, titles ...)
- Wood, Tobias C.King's College London (author)
- Solana, Ana BeatrizGE Healthcare, Germany (author)
- Williams, Steven C.R.King's College London (author)
- Barker, Gareth J.King's College London (author)
- Wiesinger, FlorianKing's College London (author)
- Medicinsk strålningsfysik, LundSektion V (creator_code:org_t)
Related titles
- In:Magnetic Resonance in Medicine: Wiley88:1, s. 195-2100740-31941522-2594
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