A plug‐and‐play, lightweight, single‐axis gradient insert design for increasing spatiotemporal resolution in echo planar imaging‐based brain imaging
The goal of this study was to introduce and evaluate the performance of a lightweight, high‐performance, single‐axis (z‐axis) gradient insert design primarily intended for high‐resolution functional magnetic resonance imaging, and aimed at providing both ease of use and a boost in spatiotemporal res...
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Veröffentlicht in: | NMR in biomedicine 2021-06, Vol.34 (6), p.e4499-n/a |
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creator | Versteeg, Edwin Velden, Tijl A. Leeuwen, Carel C. Borgo, Martino Huijing, Erik R. Hendriks, Arjan D. Hendrikse, Jeroen Klomp, Dennis W. J. Siero, Jeroen C. W. |
description | The goal of this study was to introduce and evaluate the performance of a lightweight, high‐performance, single‐axis (z‐axis) gradient insert design primarily intended for high‐resolution functional magnetic resonance imaging, and aimed at providing both ease of use and a boost in spatiotemporal resolution. The optimal winding positions of the coil were obtained using a genetic algorithm with a cost function that balanced gradient performance (minimum 0.30 mT/m/A) and field linearity (≥16 cm linear region). These parameters were verified using field distribution measurements by B0‐mapping. The correction of geometrical distortions was performed using theoretical field distribution of the coil. Simulations and measurements were performed to investigate the echo planar imaging echo‐spacing reduction due to the improved gradient performance. The resulting coil featured a 16‐cm linear region, a weight of 45 kg, an installation time of 15 min, and a maximum gradient strength and slew rate of 200 mT/m and 1300 T/m/s, respectively, when paired with a commercially available gradient amplifier (940 V/630 A). The field distribution measurements matched the theoretically expected field. By utilizing the theoretical field distribution, geometrical distortions were corrected to within 6% of the whole‐body gradient reference image in the target region. Compared with a whole‐body gradient set, a maximum reduction in echo‐spacing of a factor of 2.3 was found, translating to a 344 μs echo‐spacing, for a field of view of 192 mm, a receiver bandwidth of 920 kHz and a gradient amplitude of 112 mT/m. We present a lightweight, single‐axis gradient insert design that can provide high gradient performance and an increase in spatiotemporal resolution with correctable geometrical distortions while also offering a short installation time of less than 15 min and minimal system modifications.
A single‐axis gradient insert, designed to be plug‐and‐play while providing a significant boost in gradient performance (gradient strength = 200 mT/m and slew rate = 1300 T/m/s), was presented. This coil was characterized in terms of linearity, image distortions and reduction in echo‐spacing for echo planar imaging. Distortions were found to be correctable and echo‐spacing could be reduced by a factor of 2.3 compared with a whole‐body gradient set (40 mT/m and 200 T/m/s). |
doi_str_mv | 10.1002/nbm.4499 |
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A single‐axis gradient insert, designed to be plug‐and‐play while providing a significant boost in gradient performance (gradient strength = 200 mT/m and slew rate = 1300 T/m/s), was presented. This coil was characterized in terms of linearity, image distortions and reduction in echo‐spacing for echo planar imaging. Distortions were found to be correctable and echo‐spacing could be reduced by a factor of 2.3 compared with a whole‐body gradient set (40 mT/m and 200 T/m/s).</description><identifier>ISSN: 0952-3480</identifier><identifier>EISSN: 1099-1492</identifier><identifier>DOI: 10.1002/nbm.4499</identifier><identifier>PMID: 33619838</identifier><language>eng</language><publisher>England: Wiley Subscription Services, Inc</publisher><subject>Adult ; Biological products ; Brain - diagnostic imaging ; Brain mapping ; Coils (windings) ; Cost function ; Design ; Echo-Planar Imaging ; Electric Stimulation ; EPI, gradient coil, insert, magnetic resonance imaging, plug‐and‐play ; Female ; Field of view ; Functional magnetic resonance imaging ; Gene mapping ; Genetic algorithms ; Humans ; Installation ; Lightweight ; Linearity ; Magnetic resonance imaging ; Male ; Middle Aged ; Neuroimaging ; Performance evaluation ; Peripheral Nerves - physiology ; Slew rate ; Target recognition</subject><ispartof>NMR in biomedicine, 2021-06, Vol.34 (6), p.e4499-n/a</ispartof><rights>2021 The Authors. published by John Wiley & Sons Ltd.</rights><rights>2021 The Authors. NMR in Biomedicine published by John Wiley & Sons Ltd.</rights><rights>2021. This article is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4389-5635e1194da2557fa8e394886f66f089c2c5546bd3257e38cf700fffb94189ab3</citedby><cites>FETCH-LOGICAL-c4389-5635e1194da2557fa8e394886f66f089c2c5546bd3257e38cf700fffb94189ab3</cites><orcidid>0000-0003-3235-3970</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fnbm.4499$$EPDF$$P50$$Gwiley$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fnbm.4499$$EHTML$$P50$$Gwiley$$Hfree_for_read</linktohtml><link.rule.ids>230,314,780,784,885,1417,27924,27925,45574,45575</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/33619838$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Versteeg, Edwin</creatorcontrib><creatorcontrib>Velden, Tijl A.</creatorcontrib><creatorcontrib>Leeuwen, Carel C.</creatorcontrib><creatorcontrib>Borgo, Martino</creatorcontrib><creatorcontrib>Huijing, Erik R.</creatorcontrib><creatorcontrib>Hendriks, Arjan D.</creatorcontrib><creatorcontrib>Hendrikse, Jeroen</creatorcontrib><creatorcontrib>Klomp, Dennis W. J.</creatorcontrib><creatorcontrib>Siero, Jeroen C. W.</creatorcontrib><title>A plug‐and‐play, lightweight, single‐axis gradient insert design for increasing spatiotemporal resolution in echo planar imaging‐based brain imaging</title><title>NMR in biomedicine</title><addtitle>NMR Biomed</addtitle><description>The goal of this study was to introduce and evaluate the performance of a lightweight, high‐performance, single‐axis (z‐axis) gradient insert design primarily intended for high‐resolution functional magnetic resonance imaging, and aimed at providing both ease of use and a boost in spatiotemporal resolution. The optimal winding positions of the coil were obtained using a genetic algorithm with a cost function that balanced gradient performance (minimum 0.30 mT/m/A) and field linearity (≥16 cm linear region). These parameters were verified using field distribution measurements by B0‐mapping. The correction of geometrical distortions was performed using theoretical field distribution of the coil. Simulations and measurements were performed to investigate the echo planar imaging echo‐spacing reduction due to the improved gradient performance. The resulting coil featured a 16‐cm linear region, a weight of 45 kg, an installation time of 15 min, and a maximum gradient strength and slew rate of 200 mT/m and 1300 T/m/s, respectively, when paired with a commercially available gradient amplifier (940 V/630 A). The field distribution measurements matched the theoretically expected field. By utilizing the theoretical field distribution, geometrical distortions were corrected to within 6% of the whole‐body gradient reference image in the target region. Compared with a whole‐body gradient set, a maximum reduction in echo‐spacing of a factor of 2.3 was found, translating to a 344 μs echo‐spacing, for a field of view of 192 mm, a receiver bandwidth of 920 kHz and a gradient amplitude of 112 mT/m. We present a lightweight, single‐axis gradient insert design that can provide high gradient performance and an increase in spatiotemporal resolution with correctable geometrical distortions while also offering a short installation time of less than 15 min and minimal system modifications.
A single‐axis gradient insert, designed to be plug‐and‐play while providing a significant boost in gradient performance (gradient strength = 200 mT/m and slew rate = 1300 T/m/s), was presented. This coil was characterized in terms of linearity, image distortions and reduction in echo‐spacing for echo planar imaging. Distortions were found to be correctable and echo‐spacing could be reduced by a factor of 2.3 compared with a whole‐body gradient set (40 mT/m and 200 T/m/s).</description><subject>Adult</subject><subject>Biological products</subject><subject>Brain - diagnostic imaging</subject><subject>Brain mapping</subject><subject>Coils (windings)</subject><subject>Cost function</subject><subject>Design</subject><subject>Echo-Planar Imaging</subject><subject>Electric Stimulation</subject><subject>EPI, gradient coil, insert, magnetic resonance imaging, plug‐and‐play</subject><subject>Female</subject><subject>Field of view</subject><subject>Functional magnetic resonance imaging</subject><subject>Gene mapping</subject><subject>Genetic algorithms</subject><subject>Humans</subject><subject>Installation</subject><subject>Lightweight</subject><subject>Linearity</subject><subject>Magnetic resonance imaging</subject><subject>Male</subject><subject>Middle Aged</subject><subject>Neuroimaging</subject><subject>Performance evaluation</subject><subject>Peripheral Nerves - physiology</subject><subject>Slew rate</subject><subject>Target recognition</subject><issn>0952-3480</issn><issn>1099-1492</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>24P</sourceid><sourceid>WIN</sourceid><sourceid>EIF</sourceid><recordid>eNp1kctu1TAQhi0EoqcFiSdAltiwaIqvib1BKlW5SAU2sLacxMlxldjBTlrOjkfgAXg6noQJPZSLxGYsjb_55x_9CD2i5IQSwp6FejwRQus7aEOJ1gUVmt1FG6IlK7hQ5AAd5nxJCFGCs_vogPOSasXVBn07xdOw9N-_fLWhhToNdneMB99v52u31mOcfegHtxKffcZ9sq13YcY-ZJdm3Lrs-4C7mKDTJGdXHOfJzj7ObpxisgNOLsdhgU4ACLtmG2GrDRZmRtvDAKjXNrsW18kCse8-QPc6O2T3cP8eoY8vzz-cvS4u3r96c3Z6UTSCK13IkktHqRatZVJWnVWOa6FU2ZVlR5RuWCOlKOuWM1k5rpquIqTruloLqrSt-RF6fqM7LfXo2gbOA9dmSuAj7Uy03vz9E_zW9PHKKCYEkRQEnu4FUvy0uDyb0efGDXCji0s2DPIoSwY0oE_-QS_jkgKcZ5hkpaBVpclvwSbFnJPrbs1QYtbIDURu1sgBffyn-VvwV8YAFDfAtR_c7r9C5t2Ltz8FfwBSULzD</recordid><startdate>202106</startdate><enddate>202106</enddate><creator>Versteeg, Edwin</creator><creator>Velden, Tijl A.</creator><creator>Leeuwen, Carel C.</creator><creator>Borgo, Martino</creator><creator>Huijing, Erik R.</creator><creator>Hendriks, Arjan D.</creator><creator>Hendrikse, Jeroen</creator><creator>Klomp, Dennis W. J.</creator><creator>Siero, Jeroen C. W.</creator><general>Wiley Subscription Services, Inc</general><general>John Wiley and Sons Inc</general><scope>24P</scope><scope>WIN</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QO</scope><scope>8FD</scope><scope>FR3</scope><scope>P64</scope><scope>7X8</scope><scope>5PM</scope><orcidid>https://orcid.org/0000-0003-3235-3970</orcidid></search><sort><creationdate>202106</creationdate><title>A plug‐and‐play, lightweight, single‐axis gradient insert design for increasing spatiotemporal resolution in echo planar imaging‐based brain imaging</title><author>Versteeg, Edwin ; Velden, Tijl A. ; Leeuwen, Carel C. ; Borgo, Martino ; Huijing, Erik R. ; Hendriks, Arjan D. ; Hendrikse, Jeroen ; Klomp, Dennis W. J. ; Siero, Jeroen C. W.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4389-5635e1194da2557fa8e394886f66f089c2c5546bd3257e38cf700fffb94189ab3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Adult</topic><topic>Biological products</topic><topic>Brain - diagnostic imaging</topic><topic>Brain mapping</topic><topic>Coils (windings)</topic><topic>Cost function</topic><topic>Design</topic><topic>Echo-Planar Imaging</topic><topic>Electric Stimulation</topic><topic>EPI, gradient coil, insert, magnetic resonance imaging, plug‐and‐play</topic><topic>Female</topic><topic>Field of view</topic><topic>Functional magnetic resonance imaging</topic><topic>Gene mapping</topic><topic>Genetic algorithms</topic><topic>Humans</topic><topic>Installation</topic><topic>Lightweight</topic><topic>Linearity</topic><topic>Magnetic resonance imaging</topic><topic>Male</topic><topic>Middle Aged</topic><topic>Neuroimaging</topic><topic>Performance evaluation</topic><topic>Peripheral Nerves - physiology</topic><topic>Slew rate</topic><topic>Target recognition</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Versteeg, Edwin</creatorcontrib><creatorcontrib>Velden, Tijl A.</creatorcontrib><creatorcontrib>Leeuwen, Carel C.</creatorcontrib><creatorcontrib>Borgo, Martino</creatorcontrib><creatorcontrib>Huijing, Erik R.</creatorcontrib><creatorcontrib>Hendriks, Arjan D.</creatorcontrib><creatorcontrib>Hendrikse, Jeroen</creatorcontrib><creatorcontrib>Klomp, Dennis W. 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W.</creatorcontrib><collection>Wiley Online Library (Open Access Collection)</collection><collection>Wiley Online Library (Open Access Collection)</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Biotechnology Research Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>NMR in biomedicine</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Versteeg, Edwin</au><au>Velden, Tijl A.</au><au>Leeuwen, Carel C.</au><au>Borgo, Martino</au><au>Huijing, Erik R.</au><au>Hendriks, Arjan D.</au><au>Hendrikse, Jeroen</au><au>Klomp, Dennis W. J.</au><au>Siero, Jeroen C. W.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A plug‐and‐play, lightweight, single‐axis gradient insert design for increasing spatiotemporal resolution in echo planar imaging‐based brain imaging</atitle><jtitle>NMR in biomedicine</jtitle><addtitle>NMR Biomed</addtitle><date>2021-06</date><risdate>2021</risdate><volume>34</volume><issue>6</issue><spage>e4499</spage><epage>n/a</epage><pages>e4499-n/a</pages><issn>0952-3480</issn><eissn>1099-1492</eissn><abstract>The goal of this study was to introduce and evaluate the performance of a lightweight, high‐performance, single‐axis (z‐axis) gradient insert design primarily intended for high‐resolution functional magnetic resonance imaging, and aimed at providing both ease of use and a boost in spatiotemporal resolution. The optimal winding positions of the coil were obtained using a genetic algorithm with a cost function that balanced gradient performance (minimum 0.30 mT/m/A) and field linearity (≥16 cm linear region). These parameters were verified using field distribution measurements by B0‐mapping. The correction of geometrical distortions was performed using theoretical field distribution of the coil. Simulations and measurements were performed to investigate the echo planar imaging echo‐spacing reduction due to the improved gradient performance. The resulting coil featured a 16‐cm linear region, a weight of 45 kg, an installation time of 15 min, and a maximum gradient strength and slew rate of 200 mT/m and 1300 T/m/s, respectively, when paired with a commercially available gradient amplifier (940 V/630 A). The field distribution measurements matched the theoretically expected field. By utilizing the theoretical field distribution, geometrical distortions were corrected to within 6% of the whole‐body gradient reference image in the target region. Compared with a whole‐body gradient set, a maximum reduction in echo‐spacing of a factor of 2.3 was found, translating to a 344 μs echo‐spacing, for a field of view of 192 mm, a receiver bandwidth of 920 kHz and a gradient amplitude of 112 mT/m. We present a lightweight, single‐axis gradient insert design that can provide high gradient performance and an increase in spatiotemporal resolution with correctable geometrical distortions while also offering a short installation time of less than 15 min and minimal system modifications.
A single‐axis gradient insert, designed to be plug‐and‐play while providing a significant boost in gradient performance (gradient strength = 200 mT/m and slew rate = 1300 T/m/s), was presented. This coil was characterized in terms of linearity, image distortions and reduction in echo‐spacing for echo planar imaging. Distortions were found to be correctable and echo‐spacing could be reduced by a factor of 2.3 compared with a whole‐body gradient set (40 mT/m and 200 T/m/s).</abstract><cop>England</cop><pub>Wiley Subscription Services, Inc</pub><pmid>33619838</pmid><doi>10.1002/nbm.4499</doi><tpages>13</tpages><orcidid>https://orcid.org/0000-0003-3235-3970</orcidid><oa>free_for_read</oa></addata></record> |
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subjects | Adult Biological products Brain - diagnostic imaging Brain mapping Coils (windings) Cost function Design Echo-Planar Imaging Electric Stimulation EPI, gradient coil, insert, magnetic resonance imaging, plug‐and‐play Female Field of view Functional magnetic resonance imaging Gene mapping Genetic algorithms Humans Installation Lightweight Linearity Magnetic resonance imaging Male Middle Aged Neuroimaging Performance evaluation Peripheral Nerves - physiology Slew rate Target recognition |
title | A plug‐and‐play, lightweight, single‐axis gradient insert design for increasing spatiotemporal resolution in echo planar imaging‐based brain imaging |
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