Home > Publications database > Calibration-free parallel transmission of the cervical, thoracic, and lumbar spinal cord at 7T. > print

001     290172
005     20250729134212.0
024 7 _ |a 10.1002/mrm.30137
|2 doi
024 7 _ |a pmid:38733068
|2 pmid
024 7 _ |a 1522-2594
|2 ISSN
024 7 _ |a 0740-3194
|2 ISSN
037 _ _ |a DKFZ-2024-01008
041 _ _ |a English
082 _ _ |a 610
100 1 _ |a Aigner, Christoph S
|0 0000-0003-3618-9610
|b 0
245 _ _ |a Calibration-free parallel transmission of the cervical, thoracic, and lumbar spinal cord at 7T.
260 _ _ |a New York, NY [u.a.]
|c 2024
|b Wiley-Liss
336 7 _ |a article
|2 DRIVER
336 7 _ |a Output Types/Journal article
|2 DataCite
336 7 _ |a Journal Article
|b journal
|m journal
|0 PUB:(DE-HGF)16
|s 1721654981_11427
|2 PUB:(DE-HGF)
336 7 _ |a ARTICLE
|2 BibTeX
336 7 _ |a JOURNAL_ARTICLE
|2 ORCID
336 7 _ |a Journal Article
|0 0
|2 EndNote
500 _ _ |a #LA:E020# / 2024 Oct;92(4):1496-1510
520 _ _ |a To address the limitations of spinal cord imaging at ultra-high field (UHF) due to time-consuming parallel transmit (pTx) adjustments. This study introduces calibration-free offline computed universal shim modes that can be applied seamlessly for different pTx RF coils and spinal cord target regions, substantially enhancing spinal cord imaging efficiency at UHF.A library of channel-wise relative B 1 + $$ {B}_1^{+} $$ maps for the cervical spinal cord (six datasets) and thoracic and lumbar spinal cord (nine datasets) was constructed to optimize transmit homogeneity and efficiency for these regions. A tailored B0 shim was optimized for the cervical spine to enhance spatial magnetic field homogeneity further. The performance of the universal shims was validated using absolute saturation based B 1 + $$ {B}_1^{+} $$ mapping and high-resolution 2D and 3D multi-echo gradient-recalled echo (GRE) data to assess the image quality.The proposed universal shims demonstrated a 50% improvement in B 1 + $$ {B}_1^{+} $$ efficiency compared to the default (zero phase) shim mode. B 1 + $$ {B}_1^{+} $$ homogeneity was also improved by 20%. The optimized universal shims achieved performance comparable to subject-specific pTx adjustments, while eliminating the need for lengthy pTx calibration times, saving about 10 min per experiment.The development of universal shims represents a significant advance by eliminating time-consuming subject-specific pTx adjustments. This approach is expected to make UHF spinal cord imaging more accessible and user-friendly, particularly for non-pTx experts.
536 _ _ |a 315 - Bildgebung und Radioonkologie (POF4-315)
|0 G:(DE-HGF)POF4-315
|c POF4-315
|f POF IV
|x 0
588 _ _ |a Dataset connected to CrossRef, PubMed, , Journals: inrepo02.dkfz.de
650 _ 7 |a 7 Tesla
|2 Other
650 _ 7 |a calibration‐free
|2 Other
650 _ 7 |a parallel transmission
|2 Other
650 _ 7 |a spinal cord
|2 Other
650 _ 7 |a universal pulse
|2 Other
700 1 _ |a Sánchez Alarcon, Manuel F
|b 1
700 1 _ |a D'Astous, Alexandre
|b 2
700 1 _ |a Alonso-Ortiz, Eva
|0 0000-0001-6590-7234
|b 3
700 1 _ |a Cohen-Adad, Julien
|0 0000-0003-3662-9532
|b 4
700 1 _ |a Schmitter, Sebastian
|0 P:(DE-He78)19e2d877276b0e5eec11cdfc1789a55e
|b 5
|e Last author
|u dkfz
773 _ _ |a 10.1002/mrm.30137
|g p. mrm.30137
|0 PERI:(DE-600)1493786-4
|n 4
|p 1496-1510
|t Magnetic resonance in medicine
|v 92
|y 2024
|x 1522-2594
856 4 _ |u https://inrepo02.dkfz.de/record/290172/files/Magnetic%20Resonance%20in%20Med%20-%202024%20-%20Aigner%20-%20Calibration%E2%80%90free%20parallel%20transmission%20of%20the%20cervical%20thoracic%20and%20lumbar.pdf
856 4 _ |u https://inrepo02.dkfz.de/record/290172/files/Magnetic%20Resonance%20in%20Med%20-%202024%20-%20Aigner%20-%20Calibration%E2%80%90free%20parallel%20transmission%20of%20the%20cervical%20thoracic%20and%20lumbar.pdf?subformat=pdfa
|x pdfa
909 C O |p VDB
|o oai:inrepo02.dkfz.de:290172
910 1 _ |a Deutsches Krebsforschungszentrum
|0 I:(DE-588b)2036810-0
|k DKFZ
|b 4
|6 0000-0003-3662-9532
910 1 _ |a Deutsches Krebsforschungszentrum
|0 I:(DE-588b)2036810-0
|k DKFZ
|b 5
|6 P:(DE-He78)19e2d877276b0e5eec11cdfc1789a55e
913 1 _ |a DE-HGF
|b Gesundheit
|l Krebsforschung
|1 G:(DE-HGF)POF4-310
|0 G:(DE-HGF)POF4-315
|3 G:(DE-HGF)POF4
|2 G:(DE-HGF)POF4-300
|4 G:(DE-HGF)POF
|v Bildgebung und Radioonkologie
|x 0
914 1 _ |y 2024
915 _ _ |a Nationallizenz
|0 StatID:(DE-HGF)0420
|2 StatID
|d 2023-10-21
|w ger
915 _ _ |a DEAL Wiley
|0 StatID:(DE-HGF)3001
|2 StatID
|d 2023-10-21
|w ger
915 _ _ |a JCR
|0 StatID:(DE-HGF)0100
|2 StatID
|b MAGN RESON MED : 2022
|d 2023-10-21
915 _ _ |a DBCoverage
|0 StatID:(DE-HGF)0200
|2 StatID
|b SCOPUS
|d 2023-10-21
915 _ _ |a DBCoverage
|0 StatID:(DE-HGF)0300
|2 StatID
|b Medline
|d 2023-10-21
915 _ _ |a DBCoverage
|0 StatID:(DE-HGF)0199
|2 StatID
|b Clarivate Analytics Master Journal List
|d 2023-10-21
915 _ _ |a DBCoverage
|0 StatID:(DE-HGF)1050
|2 StatID
|b BIOSIS Previews
|d 2023-10-21
915 _ _ |a WoS
|0 StatID:(DE-HGF)0113
|2 StatID
|b Science Citation Index Expanded
|d 2023-10-21
915 _ _ |a DBCoverage
|0 StatID:(DE-HGF)0150
|2 StatID
|b Web of Science Core Collection
|d 2023-10-21
915 _ _ |a DBCoverage
|0 StatID:(DE-HGF)1030
|2 StatID
|b Current Contents - Life Sciences
|d 2023-10-21
915 _ _ |a DBCoverage
|0 StatID:(DE-HGF)1190
|2 StatID
|b Biological Abstracts
|d 2023-10-21
915 _ _ |a DBCoverage
|0 StatID:(DE-HGF)0160
|2 StatID
|b Essential Science Indicators
|d 2023-10-21
915 _ _ |a DBCoverage
|0 StatID:(DE-HGF)1110
|2 StatID
|b Current Contents - Clinical Medicine
|d 2023-10-21
915 _ _ |a IF < 5
|0 StatID:(DE-HGF)9900
|2 StatID
|d 2023-10-21
920 2 _ |0 I:(DE-He78)E020-20160331
|k E020
|l E020 Med. Physik in der Radiologie
|x 0
920 1 _ |0 I:(DE-He78)E020-20160331
|k E020
|l E020 Med. Physik in der Radiologie
|x 0
980 _ _ |a journal
980 _ _ |a VDB
980 _ _ |a I:(DE-He78)E020-20160331
980 _ _ |a UNRESTRICTED

LibraryCollectionCLSMajorCLSMinorLanguageAuthor
Marc 21