Custom integration of a magnetic-field monitoring system into a 32-channel MRI head coil
dc.contributor.author
Schmidt, Tim
dc.contributor.author
Lee, Yoojin
dc.contributor.author
Nagy, Zoltan
dc.date.accessioned
2024-10-09T08:10:29Z
dc.date.available
2024-10-09T04:55:52Z
dc.date.available
2024-10-09T08:10:29Z
dc.date.issued
2024
dc.identifier.issn
0740-3194
dc.identifier.issn
1522-2594
dc.identifier.other
10.1002/mrm.30314
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/698672
dc.identifier.doi
10.3929/ethz-b-000698672
dc.description.abstract
Purpose Customizing a Siemens 32-channel coil for use in a Philips 3T MRI system with incorporated magnetic field probes for collecting high-quality MRI and magnetic-field monitoring data concurrently. Methods The development process of the custom coil involved several (iterative) phases. Standard temporal SNR and B1+ data were collected with the 32-channel Siemens and for reference the 32-channel/8-channel Philips head coils before and after the custom coil was made compatible with the 3T Philips Achieva system, and magnetic field probes were installed into it along with ancillary electronics around it. Quality assurance tests were conducted in each of the build phases to ensure that the modifications did not affect MRI or field-monitoring data negatively. To test the finished custom coil, we collected high angular resolution diffusion imaging (HARDI) datasets on a spherical silicon oil phantom both with and without concurrent field monitoring and a 32-channel Philips coil without concurrent field monitoring, where the latter two served as reference scans to assess the improved performance of the custom coil with field monitoring. Similar HARDI-MRI data were also collected in vivo with the finished custom coil together with field monitoring data. Results The custom coil provided excellent temporal SNR especially at the edges where cortical gray matter is expected. When using concurrent field monitoring in HARDI acquisitions, the custom coil alleviated ghosting artifacts in phantom data and provided in vivo images with 1.4-mm isotropic resolution. Conclusion The custom MRI coil with integrated magnetic-field monitoring probes provided improved imaging performance.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
wiley
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
head coil
en_US
dc.subject
industrial design
en_US
dc.subject
magnetic field monitoring
en_US
dc.subject
MRI
en_US
dc.title
Custom integration of a magnetic-field monitoring system into a 32-channel MRI head coil
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2024-09-29
ethz.journal.title
Magnetic Resonance in Medicine
ethz.journal.abbreviated
Magn Reson Med
ethz.size
10 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02140 - Dep. Inf.technologie und Elektrotechnik / Dep. of Inform.Technol. Electrical Eng.::02631 - Institut für Biomedizinische Technik / Institute for Biomedical Engineering::03628 - Prüssmann, Klaas P. / Prüssmann, Klaas P.
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02140 - Dep. Inf.technologie und Elektrotechnik / Dep. of Inform.Technol. Electrical Eng.::02631 - Institut für Biomedizinische Technik / Institute for Biomedical Engineering::03628 - Prüssmann, Klaas P. / Prüssmann, Klaas P.
ethz.date.deposited
2024-10-09T04:55:56Z
ethz.source
WOS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.exportRequired
true
ethz.COinS
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