{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Stockmann JP"],"funding":["NIBIB NIH HHS","NEI NIH HHS","National Eye Institute","NIMH NIH HHS","National Institute of Mental Health","National Institute of Biomedical Imaging and Bioengineering","NIH HHS"],"pagination":["1074-1092"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9899096"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["87(2)"],"pubmed_abstract":["<h4>Purpose</h4>To test an integrated \"AC/DC\" array approach at 7T, where B<sub>0</sub> inhomogeneity poses an obstacle for functional imaging, diffusion-weighted MRI, MR spectroscopy, and other applications.<h4>Methods</h4>A close-fitting 7T 31-channel (31-ch) brain array was constructed and tested using combined Rx and ΔB<sub>0</sub> shim channels driven by a set of rapidly switchable current amplifiers. The coil was compared to a shape-matched 31-ch reference receive-only array for RF safety, signal-to-noise ratio (SNR), and inter-element noise correlation. We characterize the coil array's ability to provide global and dynamic (slice-optimized) shimming using ΔB<sub>0</sub> field maps and echo planar imaging (EPI) acquisitions.<h4>Results</h4>The SNR and average noise correlation were s"],"journal":["Magnetic resonance in medicine"],"pubmed_title":["A 31-channel integrated \"AC/DC\" B<sub>0</sub> shim and radiofrequency receive array coil for improved 7T MRI."],"pmcid":["PMC9899096"],"funding_grant_id":["R21 EB017338","R01‐MH111419","R00‐EB021349","R01 EY030434","U01 EB025162","K99 EB019482","P41‐EB030006","R01‐EB006847","K99 EB021349","U01‐EB025162","R01 MH111419","R21‐EB017338","P41 EB030006","R01 EB006847","S10 OD023637","R00 EB021349","R01‐EY030434","S10OD023637"],"pubmed_authors":["Mareyam A","Milshteyn E","Nasr S","Keil B","Stockmann JP","Arango NS","Sappo C","Polimeni JR","Craven-Brightman L","Davids M","Hoge WS","White JK","Setsompop K","Sliwiak M","Wald LL","Jenkins L","Adalsteinsson E","Witzel T","Zhou J","Guerin B"],"additional_accession":[]},"is_claimable":false,"name":"A 31-channel integrated \"AC/DC\" B<sub>0</sub> shim and radiofrequency receive array coil for improved 7T MRI.","description":"<h4>Purpose</h4>To test an integrated \"AC/DC\" array approach at 7T, where B<sub>0</sub> inhomogeneity poses an obstacle for functional imaging, diffusion-weighted MRI, MR spectroscopy, and other applications.<h4>Methods</h4>A close-fitting 7T 31-channel (31-ch) brain array was constructed and tested using combined Rx and ΔB<sub>0</sub> shim channels driven by a set of rapidly switchable current amplifiers. The coil was compared to a shape-matched 31-ch reference receive-only array for RF safety, signal-to-noise ratio (SNR), and inter-element noise correlation. We characterize the coil array's ability to provide global and dynamic (slice-optimized) shimming using ΔB<sub>0</sub> field maps and echo planar imaging (EPI) acquisitions.<h4>Results</h4>The SNR and average noise correlation were s","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022 Feb","modification":"2025-04-19T13:28:31.712Z","creation":"2025-02-19T04:20:50.2Z"},"accession":"S-EPMC9899096","cross_references":{"pubmed":["34632626"],"doi":["10.1002/mrm.29022"]}}