Effects of radiofrequency channel numbers on B 1 + mapping using the Bloch-Siegert shift method
This paper aims to investigate the impact of the channel numbers on the performance of B mapping, by using the Bloch-Siegert shift (BSS) method. B mapping plays a crucial role in various brain imaging protocols. We simulated the radiofrequency field of the human head model in six groups of multi-cha...
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| Veröffentlicht in: | NeuroImage (Orlando, Fla.) Fla.), 2023-10, Vol.279, p.120308, Article 120308 |
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| creator | Ren, Yinhao Gao, Yunyu Qiu, Bensheng Nan, Xiang Han, Jijun |
| description | This paper aims to investigate the impact of the channel numbers on the performance of B
mapping, by using the Bloch-Siegert shift (BSS) method. B
mapping plays a crucial role in various brain imaging protocols.
We simulated the radiofrequency field of the human head model in six groups of multi-channel receive coil with a range of different channel numbers. MR signals were synthesized according to the standard BSS sequence, with quantified Gaussian added. Next, we combined the signals of each channel to reconstruct the B
map by weighted averaging and maximum likelihood estimation strategies and evaluate the bias by relative standard deviation of each coil.
The simulation results revealed that the accuracy of B
maps improved with the increasing of channel numbers, meanwhile the per channel efficiency of B
maps accuracy gradually decrease. Both trends slowed down when the channel numbers reached 12 or above.
Our finding suggests that increasing the channel numbers can improve the accuracy of B
map. However, a diminishing efficiency of per channel accuracy improvement was overserved, indicating that the relationship between quality of B
map and the channel numbers is nonlinear. Based on these findings, our study provides a reference for determining channel numbers to achieve a balance of coil selection and manufacturing cost. It also provides a theoretical basis for evaluating other B
mapping techniques. |
| doi_str_mv | 10.1016/j.neuroimage.2023.120308 |
| format | Article |
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mapping, by using the Bloch-Siegert shift (BSS) method. B
mapping plays a crucial role in various brain imaging protocols.
We simulated the radiofrequency field of the human head model in six groups of multi-channel receive coil with a range of different channel numbers. MR signals were synthesized according to the standard BSS sequence, with quantified Gaussian added. Next, we combined the signals of each channel to reconstruct the B
map by weighted averaging and maximum likelihood estimation strategies and evaluate the bias by relative standard deviation of each coil.
The simulation results revealed that the accuracy of B
maps improved with the increasing of channel numbers, meanwhile the per channel efficiency of B
maps accuracy gradually decrease. Both trends slowed down when the channel numbers reached 12 or above.
Our finding suggests that increasing the channel numbers can improve the accuracy of B
map. However, a diminishing efficiency of per channel accuracy improvement was overserved, indicating that the relationship between quality of B
map and the channel numbers is nonlinear. Based on these findings, our study provides a reference for determining channel numbers to achieve a balance of coil selection and manufacturing cost. It also provides a theoretical basis for evaluating other B
mapping techniques.</description><identifier>ISSN: 1053-8119</identifier><identifier>EISSN: 1095-9572</identifier><identifier>DOI: 10.1016/j.neuroimage.2023.120308</identifier><identifier>PMID: 37544415</identifier><language>eng</language><publisher>United States: Elsevier Limited</publisher><subject>Accuracy ; Efficiency ; Electromagnetism ; Investigations ; Magnetic resonance imaging ; Neuroimaging ; Noise ; Radio frequency ; Simulation</subject><ispartof>NeuroImage (Orlando, Fla.), 2023-10, Vol.279, p.120308, Article 120308</ispartof><rights>Copyright © 2023. Published by Elsevier Inc.</rights><rights>2023. The Authors</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c185t-aebeb455e96680d330d53c9c2e02522508469de38e59b00e1e1fe07694a7c6213</cites><orcidid>0000-0002-6063-5089</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,860,27901,27902</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/37544415$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Ren, Yinhao</creatorcontrib><creatorcontrib>Gao, Yunyu</creatorcontrib><creatorcontrib>Qiu, Bensheng</creatorcontrib><creatorcontrib>Nan, Xiang</creatorcontrib><creatorcontrib>Han, Jijun</creatorcontrib><title>Effects of radiofrequency channel numbers on B 1 + mapping using the Bloch-Siegert shift method</title><title>NeuroImage (Orlando, Fla.)</title><addtitle>Neuroimage</addtitle><description>This paper aims to investigate the impact of the channel numbers on the performance of B
mapping, by using the Bloch-Siegert shift (BSS) method. B
mapping plays a crucial role in various brain imaging protocols.
We simulated the radiofrequency field of the human head model in six groups of multi-channel receive coil with a range of different channel numbers. MR signals were synthesized according to the standard BSS sequence, with quantified Gaussian added. Next, we combined the signals of each channel to reconstruct the B
map by weighted averaging and maximum likelihood estimation strategies and evaluate the bias by relative standard deviation of each coil.
The simulation results revealed that the accuracy of B
maps improved with the increasing of channel numbers, meanwhile the per channel efficiency of B
maps accuracy gradually decrease. Both trends slowed down when the channel numbers reached 12 or above.
Our finding suggests that increasing the channel numbers can improve the accuracy of B
map. However, a diminishing efficiency of per channel accuracy improvement was overserved, indicating that the relationship between quality of B
map and the channel numbers is nonlinear. Based on these findings, our study provides a reference for determining channel numbers to achieve a balance of coil selection and manufacturing cost. It also provides a theoretical basis for evaluating other B
mapping techniques.</description><subject>Accuracy</subject><subject>Efficiency</subject><subject>Electromagnetism</subject><subject>Investigations</subject><subject>Magnetic resonance imaging</subject><subject>Neuroimaging</subject><subject>Noise</subject><subject>Radio frequency</subject><subject>Simulation</subject><issn>1053-8119</issn><issn>1095-9572</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNpFkEtPwzAQhC0EoqXwF5AljihhbceJfaRVeUiVOABnK3E2TaLmgZ0c-u9JVB6X3T3M7Iw-QiiDkAGLH-qwxdF1VZPuMeTARcg4CFBnZMlAy0DLhJ_PtxSBYkwvyJX3NQBoFqlLshCJjKKIySUx26JAO3jaFdSledUVDr9GbO2R2jJtWzzQdmwydJOipWvK6D1t0r6v2j0d_TyHEun60NkyeK9wj26gvqyKgTY4lF1-TS6K9ODx5mevyOfT9mPzEuzenl83j7vAMiWHIMUMs0hK1HGsIBcCcimsthyBS84lqCjWOQqFUmcAyJAVCEmsozSxMWdiRe5Of3vXTf39YOpudO0UabiSOgYGPJ5U6qSyrvPeYWF6N0F0R8PAzGRNbf7JmpmsOZGdrLc_AWPWYP5n_EUpvgEK53cX</recordid><startdate>20231001</startdate><enddate>20231001</enddate><creator>Ren, Yinhao</creator><creator>Gao, Yunyu</creator><creator>Qiu, Bensheng</creator><creator>Nan, Xiang</creator><creator>Han, Jijun</creator><general>Elsevier Limited</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7TK</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>88G</scope><scope>8AO</scope><scope>8FD</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M2M</scope><scope>M7P</scope><scope>P64</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PSYQQ</scope><scope>Q9U</scope><scope>RC3</scope><orcidid>https://orcid.org/0000-0002-6063-5089</orcidid></search><sort><creationdate>20231001</creationdate><title>Effects of radiofrequency channel numbers on B 1 + mapping using the Bloch-Siegert shift method</title><author>Ren, Yinhao ; Gao, Yunyu ; Qiu, Bensheng ; Nan, Xiang ; Han, Jijun</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c185t-aebeb455e96680d330d53c9c2e02522508469de38e59b00e1e1fe07694a7c6213</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Accuracy</topic><topic>Efficiency</topic><topic>Electromagnetism</topic><topic>Investigations</topic><topic>Magnetic resonance imaging</topic><topic>Neuroimaging</topic><topic>Noise</topic><topic>Radio frequency</topic><topic>Simulation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ren, Yinhao</creatorcontrib><creatorcontrib>Gao, Yunyu</creatorcontrib><creatorcontrib>Qiu, Bensheng</creatorcontrib><creatorcontrib>Nan, Xiang</creatorcontrib><creatorcontrib>Han, Jijun</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Neurosciences Abstracts</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>Psychology Database (Alumni)</collection><collection>ProQuest Pharma Collection</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Engineering Research Database</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>ProQuest Biological Science Collection</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Psychology Database</collection><collection>Biological Science Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest One Psychology</collection><collection>ProQuest Central Basic</collection><collection>Genetics Abstracts</collection><jtitle>NeuroImage (Orlando, Fla.)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ren, Yinhao</au><au>Gao, Yunyu</au><au>Qiu, Bensheng</au><au>Nan, Xiang</au><au>Han, Jijun</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of radiofrequency channel numbers on B 1 + mapping using the Bloch-Siegert shift method</atitle><jtitle>NeuroImage (Orlando, Fla.)</jtitle><addtitle>Neuroimage</addtitle><date>2023-10-01</date><risdate>2023</risdate><volume>279</volume><spage>120308</spage><pages>120308-</pages><artnum>120308</artnum><issn>1053-8119</issn><eissn>1095-9572</eissn><abstract>This paper aims to investigate the impact of the channel numbers on the performance of B
mapping, by using the Bloch-Siegert shift (BSS) method. B
mapping plays a crucial role in various brain imaging protocols.
We simulated the radiofrequency field of the human head model in six groups of multi-channel receive coil with a range of different channel numbers. MR signals were synthesized according to the standard BSS sequence, with quantified Gaussian added. Next, we combined the signals of each channel to reconstruct the B
map by weighted averaging and maximum likelihood estimation strategies and evaluate the bias by relative standard deviation of each coil.
The simulation results revealed that the accuracy of B
maps improved with the increasing of channel numbers, meanwhile the per channel efficiency of B
maps accuracy gradually decrease. Both trends slowed down when the channel numbers reached 12 or above.
Our finding suggests that increasing the channel numbers can improve the accuracy of B
map. However, a diminishing efficiency of per channel accuracy improvement was overserved, indicating that the relationship between quality of B
map and the channel numbers is nonlinear. Based on these findings, our study provides a reference for determining channel numbers to achieve a balance of coil selection and manufacturing cost. It also provides a theoretical basis for evaluating other B
mapping techniques.</abstract><cop>United States</cop><pub>Elsevier Limited</pub><pmid>37544415</pmid><doi>10.1016/j.neuroimage.2023.120308</doi><orcidid>https://orcid.org/0000-0002-6063-5089</orcidid><oa>free_for_read</oa></addata></record> |
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| source | Elsevier ScienceDirect Journals Complete; DOAJ Directory of Open Access Journals; EZB-FREE-00999 freely available EZB journals |
| subjects | Accuracy Efficiency Electromagnetism Investigations Magnetic resonance imaging Neuroimaging Noise Radio frequency Simulation |
| title | Effects of radiofrequency channel numbers on B 1 + mapping using the Bloch-Siegert shift method |
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