Spread‐spectrum magnetic resonance imaging
Purpose A novel method for the acceleration of MRI acquisition is proposed that relies on the local modulation of magnetic fields. These local modulations provide additional spatial information for image reconstruction that is used to accelerate image acquisition. Methods In experiments and simulati...
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| Veröffentlicht in: | Magnetic resonance in medicine 2019-09, Vol.82 (3), p.877-885 |
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| container_issue | 3 |
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| container_title | Magnetic resonance in medicine |
| container_volume | 82 |
| creator | Scheffler, Klaus Loktyushin, Alexander Bause, Jonas Aghaeifar, Ali Steffen, Theodor Schölkopf, Bernhard |
| description | Purpose
A novel method for the acceleration of MRI acquisition is proposed that relies on the local modulation of magnetic fields. These local modulations provide additional spatial information for image reconstruction that is used to accelerate image acquisition.
Methods
In experiments and simulations, eight local coils connected to current amplifiers were used for rapid local magnetic field variation. Acquired and simulated data were reconstructed to quantify reconstruction errors as a function of the acceleration factor and applied modulation frequency and strength.
Results
Experimental results demonstrate a possible acceleration factor of 2 to 4. Simulations demonstrate the challenges and limits of this method in terms of required magnetic field modulation strengths and frequencies. A normalized mean squared error of below 10% can be achieved for acceleration factors of up to 8 using modulation field strengths comparable to the readout gradient strength at modulation frequencies in the range of 5 to 20 kHz.
Conclusion
Spread‐spectrum MRI represents a new approach to accelerate image acquisition, and it can be independently combined with traditional parallel imaging techniques based on local receive coil sensitivities. |
| doi_str_mv | 10.1002/mrm.27766 |
| format | Article |
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A novel method for the acceleration of MRI acquisition is proposed that relies on the local modulation of magnetic fields. These local modulations provide additional spatial information for image reconstruction that is used to accelerate image acquisition.
Methods
In experiments and simulations, eight local coils connected to current amplifiers were used for rapid local magnetic field variation. Acquired and simulated data were reconstructed to quantify reconstruction errors as a function of the acceleration factor and applied modulation frequency and strength.
Results
Experimental results demonstrate a possible acceleration factor of 2 to 4. Simulations demonstrate the challenges and limits of this method in terms of required magnetic field modulation strengths and frequencies. A normalized mean squared error of below 10% can be achieved for acceleration factors of up to 8 using modulation field strengths comparable to the readout gradient strength at modulation frequencies in the range of 5 to 20 kHz.
Conclusion
Spread‐spectrum MRI represents a new approach to accelerate image acquisition, and it can be independently combined with traditional parallel imaging techniques based on local receive coil sensitivities.</description><identifier>ISSN: 0740-3194</identifier><identifier>EISSN: 1522-2594</identifier><identifier>DOI: 10.1002/mrm.27766</identifier><identifier>PMID: 31025413</identifier><language>eng</language><publisher>United States: Wiley Subscription Services, Inc</publisher><subject>Acceleration ; acquisition acceleration ; Current amplifiers ; Data acquisition ; Image acquisition ; Image processing ; Image reconstruction ; Imaging techniques ; local magnetic fields ; Magnetic fields ; Magnetic resonance imaging ; Modulation ; NMR ; nonlinear field modulation ; Nuclear magnetic resonance ; parallel imaging ; Simulation ; Spatial data</subject><ispartof>Magnetic resonance in medicine, 2019-09, Vol.82 (3), p.877-885</ispartof><rights>2019 International Society for Magnetic Resonance in Medicine</rights><rights>2019 International Society for Magnetic Resonance in Medicine.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3206-86039c5e834d31505450f77bf92e59d9136f49838904a90dafeaefb76d1f5cd53</citedby><cites>FETCH-LOGICAL-c3206-86039c5e834d31505450f77bf92e59d9136f49838904a90dafeaefb76d1f5cd53</cites><orcidid>0000-0002-6964-0992 ; 0000-0001-6316-8773</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%2Fmrm.27766$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fmrm.27766$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>315,781,785,1418,1434,27929,27930,45579,45580,46414,46838</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/31025413$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Scheffler, Klaus</creatorcontrib><creatorcontrib>Loktyushin, Alexander</creatorcontrib><creatorcontrib>Bause, Jonas</creatorcontrib><creatorcontrib>Aghaeifar, Ali</creatorcontrib><creatorcontrib>Steffen, Theodor</creatorcontrib><creatorcontrib>Schölkopf, Bernhard</creatorcontrib><title>Spread‐spectrum magnetic resonance imaging</title><title>Magnetic resonance in medicine</title><addtitle>Magn Reson Med</addtitle><description>Purpose
A novel method for the acceleration of MRI acquisition is proposed that relies on the local modulation of magnetic fields. These local modulations provide additional spatial information for image reconstruction that is used to accelerate image acquisition.
Methods
In experiments and simulations, eight local coils connected to current amplifiers were used for rapid local magnetic field variation. Acquired and simulated data were reconstructed to quantify reconstruction errors as a function of the acceleration factor and applied modulation frequency and strength.
Results
Experimental results demonstrate a possible acceleration factor of 2 to 4. Simulations demonstrate the challenges and limits of this method in terms of required magnetic field modulation strengths and frequencies. A normalized mean squared error of below 10% can be achieved for acceleration factors of up to 8 using modulation field strengths comparable to the readout gradient strength at modulation frequencies in the range of 5 to 20 kHz.
Conclusion
Spread‐spectrum MRI represents a new approach to accelerate image acquisition, and it can be independently combined with traditional parallel imaging techniques based on local receive coil sensitivities.</description><subject>Acceleration</subject><subject>acquisition acceleration</subject><subject>Current amplifiers</subject><subject>Data acquisition</subject><subject>Image acquisition</subject><subject>Image processing</subject><subject>Image reconstruction</subject><subject>Imaging techniques</subject><subject>local magnetic fields</subject><subject>Magnetic fields</subject><subject>Magnetic resonance imaging</subject><subject>Modulation</subject><subject>NMR</subject><subject>nonlinear field modulation</subject><subject>Nuclear magnetic resonance</subject><subject>parallel imaging</subject><subject>Simulation</subject><subject>Spatial data</subject><issn>0740-3194</issn><issn>1522-2594</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp1kMtKAzEUQIMotlYX_oAUXAlOe_OaTJZSfEGL4GMd0kxSpnQeJjNId36C3-iXGJ3qztWFy-Hcy0HoFMMEA5Bp6csJESJN99AQc0ISwiXbR0MQDBKKJRugoxDWACClYIdoQDEQzjAdosunxludf75_hMaa1nfluNSryraFGXsb6kpXxo6LuCuq1TE6cHoT7MlujtDLzfXz7C6ZP9zez67miaEE0iRLgUrDbUZZTjEHzjg4IZZOEstlLjFNHZMZzSQwLSHXzmrrliLNseMm53SEzntv4-vXzoZWrevOV_GkIoSKDLjEaaQuesr4OgRvnWp8fNRvFQb13UXFLuqnS2TPdsZuWdr8j_wNEYFpD7wVG7v936QWj4te-QXaAGu0</recordid><startdate>201909</startdate><enddate>201909</enddate><creator>Scheffler, Klaus</creator><creator>Loktyushin, Alexander</creator><creator>Bause, Jonas</creator><creator>Aghaeifar, Ali</creator><creator>Steffen, Theodor</creator><creator>Schölkopf, Bernhard</creator><general>Wiley Subscription Services, Inc</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>FR3</scope><scope>K9.</scope><scope>M7Z</scope><scope>P64</scope><orcidid>https://orcid.org/0000-0002-6964-0992</orcidid><orcidid>https://orcid.org/0000-0001-6316-8773</orcidid></search><sort><creationdate>201909</creationdate><title>Spread‐spectrum magnetic resonance imaging</title><author>Scheffler, Klaus ; Loktyushin, Alexander ; Bause, Jonas ; Aghaeifar, Ali ; Steffen, Theodor ; Schölkopf, Bernhard</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3206-86039c5e834d31505450f77bf92e59d9136f49838904a90dafeaefb76d1f5cd53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Acceleration</topic><topic>acquisition acceleration</topic><topic>Current amplifiers</topic><topic>Data acquisition</topic><topic>Image acquisition</topic><topic>Image processing</topic><topic>Image reconstruction</topic><topic>Imaging techniques</topic><topic>local magnetic fields</topic><topic>Magnetic fields</topic><topic>Magnetic resonance imaging</topic><topic>Modulation</topic><topic>NMR</topic><topic>nonlinear field modulation</topic><topic>Nuclear magnetic resonance</topic><topic>parallel imaging</topic><topic>Simulation</topic><topic>Spatial data</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Scheffler, Klaus</creatorcontrib><creatorcontrib>Loktyushin, Alexander</creatorcontrib><creatorcontrib>Bause, Jonas</creatorcontrib><creatorcontrib>Aghaeifar, Ali</creatorcontrib><creatorcontrib>Steffen, Theodor</creatorcontrib><creatorcontrib>Schölkopf, Bernhard</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Biochemistry Abstracts 1</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Magnetic resonance in medicine</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Scheffler, Klaus</au><au>Loktyushin, Alexander</au><au>Bause, Jonas</au><au>Aghaeifar, Ali</au><au>Steffen, Theodor</au><au>Schölkopf, Bernhard</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Spread‐spectrum magnetic resonance imaging</atitle><jtitle>Magnetic resonance in medicine</jtitle><addtitle>Magn Reson Med</addtitle><date>2019-09</date><risdate>2019</risdate><volume>82</volume><issue>3</issue><spage>877</spage><epage>885</epage><pages>877-885</pages><issn>0740-3194</issn><eissn>1522-2594</eissn><abstract>Purpose
A novel method for the acceleration of MRI acquisition is proposed that relies on the local modulation of magnetic fields. These local modulations provide additional spatial information for image reconstruction that is used to accelerate image acquisition.
Methods
In experiments and simulations, eight local coils connected to current amplifiers were used for rapid local magnetic field variation. Acquired and simulated data were reconstructed to quantify reconstruction errors as a function of the acceleration factor and applied modulation frequency and strength.
Results
Experimental results demonstrate a possible acceleration factor of 2 to 4. Simulations demonstrate the challenges and limits of this method in terms of required magnetic field modulation strengths and frequencies. A normalized mean squared error of below 10% can be achieved for acceleration factors of up to 8 using modulation field strengths comparable to the readout gradient strength at modulation frequencies in the range of 5 to 20 kHz.
Conclusion
Spread‐spectrum MRI represents a new approach to accelerate image acquisition, and it can be independently combined with traditional parallel imaging techniques based on local receive coil sensitivities.</abstract><cop>United States</cop><pub>Wiley Subscription Services, Inc</pub><pmid>31025413</pmid><doi>10.1002/mrm.27766</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0002-6964-0992</orcidid><orcidid>https://orcid.org/0000-0001-6316-8773</orcidid></addata></record> |
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| ispartof | Magnetic resonance in medicine, 2019-09, Vol.82 (3), p.877-885 |
| issn | 0740-3194 1522-2594 |
| language | eng |
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| source | Access via Wiley Online Library; Wiley Online Library (Open Access Collection) |
| subjects | Acceleration acquisition acceleration Current amplifiers Data acquisition Image acquisition Image processing Image reconstruction Imaging techniques local magnetic fields Magnetic fields Magnetic resonance imaging Modulation NMR nonlinear field modulation Nuclear magnetic resonance parallel imaging Simulation Spatial data |
| title | Spread‐spectrum magnetic resonance imaging |
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