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Combining phase images from array coils using a short echo time reference scan (COMPOSER)
Purpose To develop a simple method for combining phase images from multichannel coils that does not require a reference coil and does not entail phase unwrapping, fitting or iterative procedures. Theory and Methods At very short echo time, the phase measured with each coil of an array approximates t...
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| Published in: | Magnetic resonance in medicine 2017-01, Vol.77 (1), p.318-327 |
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| Main Authors: | , , , , , , , , , |
| Format: | Article |
| Language: | English |
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| cited_by | cdi_FETCH-LOGICAL-c5703-f58a3695cadb75168780dcef46566873ddc355c362ae3699f0410e60915275543 |
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| cites | cdi_FETCH-LOGICAL-c5703-f58a3695cadb75168780dcef46566873ddc355c362ae3699f0410e60915275543 |
| container_end_page | 327 |
| container_issue | 1 |
| container_start_page | 318 |
| container_title | Magnetic resonance in medicine |
| container_volume | 77 |
| creator | Robinson, Simon Daniel Dymerska, Barbara Bogner, Wolfgang Barth, Markus Zaric, Olgica Goluch, Sigrun Grabner, Günther Deligianni, Xeni Bieri, Oliver Trattnig, Siegfried |
| description | Purpose
To develop a simple method for combining phase images from multichannel coils that does not require a reference coil and does not entail phase unwrapping, fitting or iterative procedures.
Theory and Methods
At very short echo time, the phase measured with each coil of an array approximates to the phase offset to which the image from that coil is subject. Subtracting this information from the phase of the scan of interest matches the phases from the coils, allowing them to be combined. The effectiveness of this approach is quantified in the brain, calf and breast with coils of diverse designs.
Results
The quality of phase matching between coil elements was close to 100% with all coils assessed even in regions of low signal. This method of phase combination was similar in effectiveness to the Roemer method (which needs a reference coil) and was superior to the rival reference‐coil‐free approaches tested.
Conclusion
The proposed approach—COMbining Phase data using a Short Echo‐time Reference scan (COMPOSER)—is a simple and effective approach to reconstructing phase images from multichannel coils. It requires little additional scan time, is compatible with parallel imaging and is applicable to all coils, independent of configuration. Magn Reson Med 77:318–327, 2017. © 2015 The Authors Magnetic Resonance in Medicine published by Wiley Periodicals, Inc. on behalf of International Society for Magnetic Resonance in Medicine |
| doi_str_mv | 10.1002/mrm.26093 |
| format | article |
| fullrecord | <record><control><sourceid>proquest_pubme</sourceid><recordid>TN_cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_5217082</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>1826642647</sourcerecordid><originalsourceid>FETCH-LOGICAL-c5703-f58a3695cadb75168780dcef46566873ddc355c362ae3699f0410e60915275543</originalsourceid><addsrcrecordid>eNqNkk9LHDEYh0NR6tb20C9QAl70MJr_mVyEslhbcNli20NPIZvN7EZmJmuy07Lfvq-uShUUTyHkyRN-v7wIfaTkmBLCTrrcHTNFDH-DRlQyVjFpxA4aES1IxakRe-hdKVeEEGO0eIv2mNKUCSlG6Pc4dbPYx36BV0tXAo6dW4SCm5w67HJ2G-xTbAseyg3jcFmmvMbBLxNexy7gHJqQQ-8DLt71-HA8nXyf_ji7PHqPdhvXlvDhbt1Hv76c_Rx_rS6m59_Gny8qLzXhVSNrx5WR3s1nWlJV65rMfWiEkgo2fD73XErPFXMBONMQQUmAsBBUSyn4PjrdelfDrAtwtV9n19pVhiR5Y5OL9vFJH5d2kf5YyagmNQPB4Z0gp-shlLXtYvGhbV0f0lAsraFNoylXr0CZUoIpoQE9eIJepSH30IRlzHAhFGhfouBZZgCpOVBHW8rnVAo0_pCOEnszARYmwN5OALCf_q_jgbz_cgBOtsDf2IbN8yY7uZxslf8ACY23ZA</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1852959383</pqid></control><display><type>article</type><title>Combining phase images from array coils using a short echo time reference scan (COMPOSER)</title><source>Wiley-Blackwell Read & Publish Collection</source><creator>Robinson, Simon Daniel ; Dymerska, Barbara ; Bogner, Wolfgang ; Barth, Markus ; Zaric, Olgica ; Goluch, Sigrun ; Grabner, Günther ; Deligianni, Xeni ; Bieri, Oliver ; Trattnig, Siegfried</creator><creatorcontrib>Robinson, Simon Daniel ; Dymerska, Barbara ; Bogner, Wolfgang ; Barth, Markus ; Zaric, Olgica ; Goluch, Sigrun ; Grabner, Günther ; Deligianni, Xeni ; Bieri, Oliver ; Trattnig, Siegfried</creatorcontrib><description>Purpose
To develop a simple method for combining phase images from multichannel coils that does not require a reference coil and does not entail phase unwrapping, fitting or iterative procedures.
Theory and Methods
At very short echo time, the phase measured with each coil of an array approximates to the phase offset to which the image from that coil is subject. Subtracting this information from the phase of the scan of interest matches the phases from the coils, allowing them to be combined. The effectiveness of this approach is quantified in the brain, calf and breast with coils of diverse designs.
Results
The quality of phase matching between coil elements was close to 100% with all coils assessed even in regions of low signal. This method of phase combination was similar in effectiveness to the Roemer method (which needs a reference coil) and was superior to the rival reference‐coil‐free approaches tested.
Conclusion
The proposed approach—COMbining Phase data using a Short Echo‐time Reference scan (COMPOSER)—is a simple and effective approach to reconstructing phase images from multichannel coils. It requires little additional scan time, is compatible with parallel imaging and is applicable to all coils, independent of configuration. Magn Reson Med 77:318–327, 2017. © 2015 The Authors Magnetic Resonance in Medicine published by Wiley Periodicals, Inc. on behalf of International Society for Magnetic Resonance in Medicine</description><identifier>ISSN: 0740-3194</identifier><identifier>EISSN: 1522-2594</identifier><identifier>DOI: 10.1002/mrm.26093</identifier><identifier>PMID: 26712454</identifier><identifier>CODEN: MRMEEN</identifier><language>eng</language><publisher>United States: Wiley Subscription Services, Inc</publisher><subject>Adult ; Arrays ; Brain - diagnostic imaging ; Breast ; Breast - diagnostic imaging ; Female ; Humans ; Image Processing, Computer-Assisted - methods ; Image reconstruction ; Imaging Methodology—Notes ; Leg - diagnostic imaging ; Magnetic resonance ; Magnetic Resonance Imaging - methods ; Male ; Medicine ; Neuroimaging ; parallel transmit ; phase combination ; phase imaging ; Phase matching ; Phase unwrapping ; phased array coils ; Resonance ; Signal-To-Noise Ratio ; ultra‐high field</subject><ispartof>Magnetic resonance in medicine, 2017-01, Vol.77 (1), p.318-327</ispartof><rights>2015 Wiley Periodicals, Inc.</rights><rights>2017 International Society for Magnetic Resonance in Medicine</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c5703-f58a3695cadb75168780dcef46566873ddc355c362ae3699f0410e60915275543</citedby><cites>FETCH-LOGICAL-c5703-f58a3695cadb75168780dcef46566873ddc355c362ae3699f0410e60915275543</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26712454$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Robinson, Simon Daniel</creatorcontrib><creatorcontrib>Dymerska, Barbara</creatorcontrib><creatorcontrib>Bogner, Wolfgang</creatorcontrib><creatorcontrib>Barth, Markus</creatorcontrib><creatorcontrib>Zaric, Olgica</creatorcontrib><creatorcontrib>Goluch, Sigrun</creatorcontrib><creatorcontrib>Grabner, Günther</creatorcontrib><creatorcontrib>Deligianni, Xeni</creatorcontrib><creatorcontrib>Bieri, Oliver</creatorcontrib><creatorcontrib>Trattnig, Siegfried</creatorcontrib><title>Combining phase images from array coils using a short echo time reference scan (COMPOSER)</title><title>Magnetic resonance in medicine</title><addtitle>Magn Reson Med</addtitle><description>Purpose
To develop a simple method for combining phase images from multichannel coils that does not require a reference coil and does not entail phase unwrapping, fitting or iterative procedures.
Theory and Methods
At very short echo time, the phase measured with each coil of an array approximates to the phase offset to which the image from that coil is subject. Subtracting this information from the phase of the scan of interest matches the phases from the coils, allowing them to be combined. The effectiveness of this approach is quantified in the brain, calf and breast with coils of diverse designs.
Results
The quality of phase matching between coil elements was close to 100% with all coils assessed even in regions of low signal. This method of phase combination was similar in effectiveness to the Roemer method (which needs a reference coil) and was superior to the rival reference‐coil‐free approaches tested.
Conclusion
The proposed approach—COMbining Phase data using a Short Echo‐time Reference scan (COMPOSER)—is a simple and effective approach to reconstructing phase images from multichannel coils. It requires little additional scan time, is compatible with parallel imaging and is applicable to all coils, independent of configuration. Magn Reson Med 77:318–327, 2017. © 2015 The Authors Magnetic Resonance in Medicine published by Wiley Periodicals, Inc. on behalf of International Society for Magnetic Resonance in Medicine</description><subject>Adult</subject><subject>Arrays</subject><subject>Brain - diagnostic imaging</subject><subject>Breast</subject><subject>Breast - diagnostic imaging</subject><subject>Female</subject><subject>Humans</subject><subject>Image Processing, Computer-Assisted - methods</subject><subject>Image reconstruction</subject><subject>Imaging Methodology—Notes</subject><subject>Leg - diagnostic imaging</subject><subject>Magnetic resonance</subject><subject>Magnetic Resonance Imaging - methods</subject><subject>Male</subject><subject>Medicine</subject><subject>Neuroimaging</subject><subject>parallel transmit</subject><subject>phase combination</subject><subject>phase imaging</subject><subject>Phase matching</subject><subject>Phase unwrapping</subject><subject>phased array coils</subject><subject>Resonance</subject><subject>Signal-To-Noise Ratio</subject><subject>ultra‐high field</subject><issn>0740-3194</issn><issn>1522-2594</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>24P</sourceid><recordid>eNqNkk9LHDEYh0NR6tb20C9QAl70MJr_mVyEslhbcNli20NPIZvN7EZmJmuy07Lfvq-uShUUTyHkyRN-v7wIfaTkmBLCTrrcHTNFDH-DRlQyVjFpxA4aES1IxakRe-hdKVeEEGO0eIv2mNKUCSlG6Pc4dbPYx36BV0tXAo6dW4SCm5w67HJ2G-xTbAseyg3jcFmmvMbBLxNexy7gHJqQQ-8DLt71-HA8nXyf_ji7PHqPdhvXlvDhbt1Hv76c_Rx_rS6m59_Gny8qLzXhVSNrx5WR3s1nWlJV65rMfWiEkgo2fD73XErPFXMBONMQQUmAsBBUSyn4PjrdelfDrAtwtV9n19pVhiR5Y5OL9vFJH5d2kf5YyagmNQPB4Z0gp-shlLXtYvGhbV0f0lAsraFNoylXr0CZUoIpoQE9eIJepSH30IRlzHAhFGhfouBZZgCpOVBHW8rnVAo0_pCOEnszARYmwN5OALCf_q_jgbz_cgBOtsDf2IbN8yY7uZxslf8ACY23ZA</recordid><startdate>201701</startdate><enddate>201701</enddate><creator>Robinson, Simon Daniel</creator><creator>Dymerska, Barbara</creator><creator>Bogner, Wolfgang</creator><creator>Barth, Markus</creator><creator>Zaric, Olgica</creator><creator>Goluch, Sigrun</creator><creator>Grabner, Günther</creator><creator>Deligianni, Xeni</creator><creator>Bieri, Oliver</creator><creator>Trattnig, Siegfried</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>8FD</scope><scope>FR3</scope><scope>K9.</scope><scope>M7Z</scope><scope>P64</scope><scope>7X8</scope><scope>7QO</scope><scope>5PM</scope></search><sort><creationdate>201701</creationdate><title>Combining phase images from array coils using a short echo time reference scan (COMPOSER)</title><author>Robinson, Simon Daniel ; Dymerska, Barbara ; Bogner, Wolfgang ; Barth, Markus ; Zaric, Olgica ; Goluch, Sigrun ; Grabner, Günther ; Deligianni, Xeni ; Bieri, Oliver ; Trattnig, Siegfried</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5703-f58a3695cadb75168780dcef46566873ddc355c362ae3699f0410e60915275543</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Adult</topic><topic>Arrays</topic><topic>Brain - diagnostic imaging</topic><topic>Breast</topic><topic>Breast - diagnostic imaging</topic><topic>Female</topic><topic>Humans</topic><topic>Image Processing, Computer-Assisted - methods</topic><topic>Image reconstruction</topic><topic>Imaging Methodology—Notes</topic><topic>Leg - diagnostic imaging</topic><topic>Magnetic resonance</topic><topic>Magnetic Resonance Imaging - methods</topic><topic>Male</topic><topic>Medicine</topic><topic>Neuroimaging</topic><topic>parallel transmit</topic><topic>phase combination</topic><topic>phase imaging</topic><topic>Phase matching</topic><topic>Phase unwrapping</topic><topic>phased array coils</topic><topic>Resonance</topic><topic>Signal-To-Noise Ratio</topic><topic>ultra‐high field</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Robinson, Simon Daniel</creatorcontrib><creatorcontrib>Dymerska, Barbara</creatorcontrib><creatorcontrib>Bogner, Wolfgang</creatorcontrib><creatorcontrib>Barth, Markus</creatorcontrib><creatorcontrib>Zaric, Olgica</creatorcontrib><creatorcontrib>Goluch, Sigrun</creatorcontrib><creatorcontrib>Grabner, Günther</creatorcontrib><creatorcontrib>Deligianni, Xeni</creatorcontrib><creatorcontrib>Bieri, Oliver</creatorcontrib><creatorcontrib>Trattnig, Siegfried</creatorcontrib><collection>Wiley Online Library Open Access</collection><collection>Wiley Online Library Journals</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><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><collection>MEDLINE - Academic</collection><collection>Biotechnology Research Abstracts</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Magnetic resonance in medicine</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Robinson, Simon Daniel</au><au>Dymerska, Barbara</au><au>Bogner, Wolfgang</au><au>Barth, Markus</au><au>Zaric, Olgica</au><au>Goluch, Sigrun</au><au>Grabner, Günther</au><au>Deligianni, Xeni</au><au>Bieri, Oliver</au><au>Trattnig, Siegfried</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Combining phase images from array coils using a short echo time reference scan (COMPOSER)</atitle><jtitle>Magnetic resonance in medicine</jtitle><addtitle>Magn Reson Med</addtitle><date>2017-01</date><risdate>2017</risdate><volume>77</volume><issue>1</issue><spage>318</spage><epage>327</epage><pages>318-327</pages><issn>0740-3194</issn><eissn>1522-2594</eissn><coden>MRMEEN</coden><abstract>Purpose
To develop a simple method for combining phase images from multichannel coils that does not require a reference coil and does not entail phase unwrapping, fitting or iterative procedures.
Theory and Methods
At very short echo time, the phase measured with each coil of an array approximates to the phase offset to which the image from that coil is subject. Subtracting this information from the phase of the scan of interest matches the phases from the coils, allowing them to be combined. The effectiveness of this approach is quantified in the brain, calf and breast with coils of diverse designs.
Results
The quality of phase matching between coil elements was close to 100% with all coils assessed even in regions of low signal. This method of phase combination was similar in effectiveness to the Roemer method (which needs a reference coil) and was superior to the rival reference‐coil‐free approaches tested.
Conclusion
The proposed approach—COMbining Phase data using a Short Echo‐time Reference scan (COMPOSER)—is a simple and effective approach to reconstructing phase images from multichannel coils. It requires little additional scan time, is compatible with parallel imaging and is applicable to all coils, independent of configuration. Magn Reson Med 77:318–327, 2017. © 2015 The Authors Magnetic Resonance in Medicine published by Wiley Periodicals, Inc. on behalf of International Society for Magnetic Resonance in Medicine</abstract><cop>United States</cop><pub>Wiley Subscription Services, Inc</pub><pmid>26712454</pmid><doi>10.1002/mrm.26093</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Magnetic resonance in medicine, 2017-01, Vol.77 (1), p.318-327 |
| issn | 0740-3194 1522-2594 |
| language | eng |
| recordid | cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_5217082 |
| source | Wiley-Blackwell Read & Publish Collection |
| subjects | Adult Arrays Brain - diagnostic imaging Breast Breast - diagnostic imaging Female Humans Image Processing, Computer-Assisted - methods Image reconstruction Imaging Methodology—Notes Leg - diagnostic imaging Magnetic resonance Magnetic Resonance Imaging - methods Male Medicine Neuroimaging parallel transmit phase combination phase imaging Phase matching Phase unwrapping phased array coils Resonance Signal-To-Noise Ratio ultra‐high field |
| title | Combining phase images from array coils using a short echo time reference scan (COMPOSER) |
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