Whole-heart coronary magnetic resonance angiography at 3.0T using short-TR steady-state free precession, vastly undersampled isotropic projection reconstruction
Purpose To evaluate the feasibility of improving 3.0T steady‐state free precession (SSFP) whole‐heart coronary magnetic resonance angiography (MRA) using short‐TR (repetition time) VIPR (vastly undersampled isotropic projection reconstruction). Materials and Methods SSFP is highly sensitive to field...
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| creator | Xie, Jingsi Lai, Peng Bhat, Himanshu Li, Debiao |
| description | Purpose
To evaluate the feasibility of improving 3.0T steady‐state free precession (SSFP) whole‐heart coronary magnetic resonance angiography (MRA) using short‐TR (repetition time) VIPR (vastly undersampled isotropic projection reconstruction).
Materials and Methods
SSFP is highly sensitive to field inhomogeneity. VIPR imaging uses nonselective radiofrequency pulses, allowing short TR and reduced banding artifacts, while achieving isotropic 3D resolution. Coronary artery imaging was performed in nine healthy volunteers using SSFP VIPR. TR was reduced to 3.0 msec with an isotropic spatial resolution of 1.3 × 1.3 × 1.3 mm3. Image quality, vessel sharpness, and lengths of major coronary arteries were measured. Comparison between SSFP using Cartesian trajectory and SSFP using VIPR trajectory was performed in all volunteers.
Results
Short‐TR SSFP VIPR resulted in whole‐heart images without any banding artifacts, leading to excellent coronary artery visualization. The average image quality score for VIPR‐SSFP was 3.12 ± 0.42 out of four while that for Cartesian SSFP was 0.92 ± 0.61. A significant improvement (P < 0.05) in image quality was shown by Wilcoxon comparison. The visualized coronary artery lengths for VIPR‐SSFP were: 10.13 ± 0.79 cm for the left anterior descending artery (LAD), 7.90 ± 0.91 cm for the left circumflex artery (LCX), 7.50 ± 1.65 cm for the right coronary artery (RCA), and 1.84 ± 0.23 cm for the left main artery (LM). The lengths statistics for Cartesian SSFP were 1.57 ± 2.02 cm, 1.54 ± 1.93 cm, 0.94 ± 1.17 cm, 0.46 ± 0.53 cm, respectively. The image sharpness was also increased from 0.61 ± 0.13 (mm−1) in Cartesian‐SSFP to 0.81 ± 0.11 (mm−1) in VIPR‐SSFP.
Conclusion
With VIPR trajectory the TR is substantially decreased, reducing the sensitivity of SSFP to field inhomogeneity and resulting in whole‐heart images without banding artifacts at 3.0T. Image quality improved significantly over Cartesian sampling. J. Magn. Reson. Imaging 2010; 31:1230–1235. © 2010 Wiley‐Liss, Inc. |
| doi_str_mv | 10.1002/jmri.22140 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_733934802</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>733934802</sourcerecordid><originalsourceid>FETCH-LOGICAL-c4020-7c23dda635bcc00cb9546349dc92e5fc1ed5cbc5e76bc9f080aa2f811654bb723</originalsourceid><addsrcrecordid>eNp9kU1v1DAQhiMEoqVw4Qcg35AQWfwRJ-sjqqAtFJCqRStxsRxnsusliVOPA-Tf9KfW22175DQfeuad0bxZ9prRBaOUf9j1wS04ZwV9kh0zyXnO5bJ8mnIqRc6WtDrKXiDuKKVKFfJ5dsRpIbgo2XF2s976DvItmBCJ9cEPJsykN5sBorMkAKbOYIGYYeP8JphxOxMTiVjQFZnQDRuCWx9ivroiGME0c47RRCBtACBjAAuIzg_vyR-DsZvJNDQQ0PRjBw1x6GPwY1o0Br8DGxOZdlo_YAzTXfkye9aaDuHVfTzJfn7-tDo9zy9_nF2cfrzMbUE5zSvLRdOYUsjaWkptrWRRikI1VnGQrWXQSFtbCVVZW9XSJTWGt0vGSlnUdcXFSfb2oJsuuZ4Ao-4dWug6M4CfUFdCKFEs6Z58dyBt8IgBWj0G16e3aUb13hC9N0TfGZLgN_eyU91D84g-OJAAdgD-ug7m_0jpL9-uLh5E88OMSy__9zhjwm9dVqKSev39TBfrr7_OlWJaiVv3M6ng</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>733934802</pqid></control><display><type>article</type><title>Whole-heart coronary magnetic resonance angiography at 3.0T using short-TR steady-state free precession, vastly undersampled isotropic projection reconstruction</title><source>MEDLINE</source><source>Wiley Online Library Free Content</source><source>Access via Wiley Online Library</source><creator>Xie, Jingsi ; Lai, Peng ; Bhat, Himanshu ; Li, Debiao</creator><creatorcontrib>Xie, Jingsi ; Lai, Peng ; Bhat, Himanshu ; Li, Debiao</creatorcontrib><description>Purpose
To evaluate the feasibility of improving 3.0T steady‐state free precession (SSFP) whole‐heart coronary magnetic resonance angiography (MRA) using short‐TR (repetition time) VIPR (vastly undersampled isotropic projection reconstruction).
Materials and Methods
SSFP is highly sensitive to field inhomogeneity. VIPR imaging uses nonselective radiofrequency pulses, allowing short TR and reduced banding artifacts, while achieving isotropic 3D resolution. Coronary artery imaging was performed in nine healthy volunteers using SSFP VIPR. TR was reduced to 3.0 msec with an isotropic spatial resolution of 1.3 × 1.3 × 1.3 mm3. Image quality, vessel sharpness, and lengths of major coronary arteries were measured. Comparison between SSFP using Cartesian trajectory and SSFP using VIPR trajectory was performed in all volunteers.
Results
Short‐TR SSFP VIPR resulted in whole‐heart images without any banding artifacts, leading to excellent coronary artery visualization. The average image quality score for VIPR‐SSFP was 3.12 ± 0.42 out of four while that for Cartesian SSFP was 0.92 ± 0.61. A significant improvement (P < 0.05) in image quality was shown by Wilcoxon comparison. The visualized coronary artery lengths for VIPR‐SSFP were: 10.13 ± 0.79 cm for the left anterior descending artery (LAD), 7.90 ± 0.91 cm for the left circumflex artery (LCX), 7.50 ± 1.65 cm for the right coronary artery (RCA), and 1.84 ± 0.23 cm for the left main artery (LM). The lengths statistics for Cartesian SSFP were 1.57 ± 2.02 cm, 1.54 ± 1.93 cm, 0.94 ± 1.17 cm, 0.46 ± 0.53 cm, respectively. The image sharpness was also increased from 0.61 ± 0.13 (mm−1) in Cartesian‐SSFP to 0.81 ± 0.11 (mm−1) in VIPR‐SSFP.
Conclusion
With VIPR trajectory the TR is substantially decreased, reducing the sensitivity of SSFP to field inhomogeneity and resulting in whole‐heart images without banding artifacts at 3.0T. Image quality improved significantly over Cartesian sampling. J. Magn. Reson. Imaging 2010; 31:1230–1235. © 2010 Wiley‐Liss, Inc.</description><identifier>ISSN: 1053-1807</identifier><identifier>EISSN: 1522-2586</identifier><identifier>DOI: 10.1002/jmri.22140</identifier><identifier>PMID: 20432361</identifier><language>eng</language><publisher>Hoboken: Wiley Subscription Services, Inc., A Wiley Company</publisher><subject>3.0T ; Adult ; Algorithms ; Anisotropy ; coronary vessel ; Coronary Vessels - anatomy & histology ; Feasibility Studies ; Female ; Humans ; Image Enhancement - methods ; Image Interpretation, Computer-Assisted - methods ; Magnetic Resonance Angiography - methods ; Male ; Middle Aged ; MR studies ; radial sampling ; Reproducibility of Results ; Sample Size ; Sensitivity and Specificity ; steady-state free precession ; Young Adult</subject><ispartof>Journal of magnetic resonance imaging, 2010-05, Vol.31 (5), p.1230-1235</ispartof><rights>Copyright © 2010 Wiley‐Liss, Inc.</rights><rights>Copyright 2010 Wiley-Liss, Inc.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4020-7c23dda635bcc00cb9546349dc92e5fc1ed5cbc5e76bc9f080aa2f811654bb723</citedby><cites>FETCH-LOGICAL-c4020-7c23dda635bcc00cb9546349dc92e5fc1ed5cbc5e76bc9f080aa2f811654bb723</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fjmri.22140$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fjmri.22140$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,1433,27924,27925,45574,45575,46409,46833</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/20432361$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Xie, Jingsi</creatorcontrib><creatorcontrib>Lai, Peng</creatorcontrib><creatorcontrib>Bhat, Himanshu</creatorcontrib><creatorcontrib>Li, Debiao</creatorcontrib><title>Whole-heart coronary magnetic resonance angiography at 3.0T using short-TR steady-state free precession, vastly undersampled isotropic projection reconstruction</title><title>Journal of magnetic resonance imaging</title><addtitle>J. Magn. Reson. Imaging</addtitle><description>Purpose
To evaluate the feasibility of improving 3.0T steady‐state free precession (SSFP) whole‐heart coronary magnetic resonance angiography (MRA) using short‐TR (repetition time) VIPR (vastly undersampled isotropic projection reconstruction).
Materials and Methods
SSFP is highly sensitive to field inhomogeneity. VIPR imaging uses nonselective radiofrequency pulses, allowing short TR and reduced banding artifacts, while achieving isotropic 3D resolution. Coronary artery imaging was performed in nine healthy volunteers using SSFP VIPR. TR was reduced to 3.0 msec with an isotropic spatial resolution of 1.3 × 1.3 × 1.3 mm3. Image quality, vessel sharpness, and lengths of major coronary arteries were measured. Comparison between SSFP using Cartesian trajectory and SSFP using VIPR trajectory was performed in all volunteers.
Results
Short‐TR SSFP VIPR resulted in whole‐heart images without any banding artifacts, leading to excellent coronary artery visualization. The average image quality score for VIPR‐SSFP was 3.12 ± 0.42 out of four while that for Cartesian SSFP was 0.92 ± 0.61. A significant improvement (P < 0.05) in image quality was shown by Wilcoxon comparison. The visualized coronary artery lengths for VIPR‐SSFP were: 10.13 ± 0.79 cm for the left anterior descending artery (LAD), 7.90 ± 0.91 cm for the left circumflex artery (LCX), 7.50 ± 1.65 cm for the right coronary artery (RCA), and 1.84 ± 0.23 cm for the left main artery (LM). The lengths statistics for Cartesian SSFP were 1.57 ± 2.02 cm, 1.54 ± 1.93 cm, 0.94 ± 1.17 cm, 0.46 ± 0.53 cm, respectively. The image sharpness was also increased from 0.61 ± 0.13 (mm−1) in Cartesian‐SSFP to 0.81 ± 0.11 (mm−1) in VIPR‐SSFP.
Conclusion
With VIPR trajectory the TR is substantially decreased, reducing the sensitivity of SSFP to field inhomogeneity and resulting in whole‐heart images without banding artifacts at 3.0T. Image quality improved significantly over Cartesian sampling. J. Magn. Reson. Imaging 2010; 31:1230–1235. © 2010 Wiley‐Liss, Inc.</description><subject>3.0T</subject><subject>Adult</subject><subject>Algorithms</subject><subject>Anisotropy</subject><subject>coronary vessel</subject><subject>Coronary Vessels - anatomy & histology</subject><subject>Feasibility Studies</subject><subject>Female</subject><subject>Humans</subject><subject>Image Enhancement - methods</subject><subject>Image Interpretation, Computer-Assisted - methods</subject><subject>Magnetic Resonance Angiography - methods</subject><subject>Male</subject><subject>Middle Aged</subject><subject>MR studies</subject><subject>radial sampling</subject><subject>Reproducibility of Results</subject><subject>Sample Size</subject><subject>Sensitivity and Specificity</subject><subject>steady-state free precession</subject><subject>Young Adult</subject><issn>1053-1807</issn><issn>1522-2586</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kU1v1DAQhiMEoqVw4Qcg35AQWfwRJ-sjqqAtFJCqRStxsRxnsusliVOPA-Tf9KfW22175DQfeuad0bxZ9prRBaOUf9j1wS04ZwV9kh0zyXnO5bJ8mnIqRc6WtDrKXiDuKKVKFfJ5dsRpIbgo2XF2s976DvItmBCJ9cEPJsykN5sBorMkAKbOYIGYYeP8JphxOxMTiVjQFZnQDRuCWx9ivroiGME0c47RRCBtACBjAAuIzg_vyR-DsZvJNDQQ0PRjBw1x6GPwY1o0Br8DGxOZdlo_YAzTXfkye9aaDuHVfTzJfn7-tDo9zy9_nF2cfrzMbUE5zSvLRdOYUsjaWkptrWRRikI1VnGQrWXQSFtbCVVZW9XSJTWGt0vGSlnUdcXFSfb2oJsuuZ4Ao-4dWug6M4CfUFdCKFEs6Z58dyBt8IgBWj0G16e3aUb13hC9N0TfGZLgN_eyU91D84g-OJAAdgD-ug7m_0jpL9-uLh5E88OMSy__9zhjwm9dVqKSev39TBfrr7_OlWJaiVv3M6ng</recordid><startdate>201005</startdate><enddate>201005</enddate><creator>Xie, Jingsi</creator><creator>Lai, Peng</creator><creator>Bhat, Himanshu</creator><creator>Li, Debiao</creator><general>Wiley Subscription Services, Inc., A Wiley Company</general><scope>BSCLL</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>7X8</scope></search><sort><creationdate>201005</creationdate><title>Whole-heart coronary magnetic resonance angiography at 3.0T using short-TR steady-state free precession, vastly undersampled isotropic projection reconstruction</title><author>Xie, Jingsi ; Lai, Peng ; Bhat, Himanshu ; Li, Debiao</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4020-7c23dda635bcc00cb9546349dc92e5fc1ed5cbc5e76bc9f080aa2f811654bb723</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>3.0T</topic><topic>Adult</topic><topic>Algorithms</topic><topic>Anisotropy</topic><topic>coronary vessel</topic><topic>Coronary Vessels - anatomy & histology</topic><topic>Feasibility Studies</topic><topic>Female</topic><topic>Humans</topic><topic>Image Enhancement - methods</topic><topic>Image Interpretation, Computer-Assisted - methods</topic><topic>Magnetic Resonance Angiography - methods</topic><topic>Male</topic><topic>Middle Aged</topic><topic>MR studies</topic><topic>radial sampling</topic><topic>Reproducibility of Results</topic><topic>Sample Size</topic><topic>Sensitivity and Specificity</topic><topic>steady-state free precession</topic><topic>Young Adult</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Xie, Jingsi</creatorcontrib><creatorcontrib>Lai, Peng</creatorcontrib><creatorcontrib>Bhat, Himanshu</creatorcontrib><creatorcontrib>Li, Debiao</creatorcontrib><collection>Istex</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of magnetic resonance imaging</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Xie, Jingsi</au><au>Lai, Peng</au><au>Bhat, Himanshu</au><au>Li, Debiao</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Whole-heart coronary magnetic resonance angiography at 3.0T using short-TR steady-state free precession, vastly undersampled isotropic projection reconstruction</atitle><jtitle>Journal of magnetic resonance imaging</jtitle><addtitle>J. Magn. Reson. Imaging</addtitle><date>2010-05</date><risdate>2010</risdate><volume>31</volume><issue>5</issue><spage>1230</spage><epage>1235</epage><pages>1230-1235</pages><issn>1053-1807</issn><eissn>1522-2586</eissn><abstract>Purpose
To evaluate the feasibility of improving 3.0T steady‐state free precession (SSFP) whole‐heart coronary magnetic resonance angiography (MRA) using short‐TR (repetition time) VIPR (vastly undersampled isotropic projection reconstruction).
Materials and Methods
SSFP is highly sensitive to field inhomogeneity. VIPR imaging uses nonselective radiofrequency pulses, allowing short TR and reduced banding artifacts, while achieving isotropic 3D resolution. Coronary artery imaging was performed in nine healthy volunteers using SSFP VIPR. TR was reduced to 3.0 msec with an isotropic spatial resolution of 1.3 × 1.3 × 1.3 mm3. Image quality, vessel sharpness, and lengths of major coronary arteries were measured. Comparison between SSFP using Cartesian trajectory and SSFP using VIPR trajectory was performed in all volunteers.
Results
Short‐TR SSFP VIPR resulted in whole‐heart images without any banding artifacts, leading to excellent coronary artery visualization. The average image quality score for VIPR‐SSFP was 3.12 ± 0.42 out of four while that for Cartesian SSFP was 0.92 ± 0.61. A significant improvement (P < 0.05) in image quality was shown by Wilcoxon comparison. The visualized coronary artery lengths for VIPR‐SSFP were: 10.13 ± 0.79 cm for the left anterior descending artery (LAD), 7.90 ± 0.91 cm for the left circumflex artery (LCX), 7.50 ± 1.65 cm for the right coronary artery (RCA), and 1.84 ± 0.23 cm for the left main artery (LM). The lengths statistics for Cartesian SSFP were 1.57 ± 2.02 cm, 1.54 ± 1.93 cm, 0.94 ± 1.17 cm, 0.46 ± 0.53 cm, respectively. The image sharpness was also increased from 0.61 ± 0.13 (mm−1) in Cartesian‐SSFP to 0.81 ± 0.11 (mm−1) in VIPR‐SSFP.
Conclusion
With VIPR trajectory the TR is substantially decreased, reducing the sensitivity of SSFP to field inhomogeneity and resulting in whole‐heart images without banding artifacts at 3.0T. Image quality improved significantly over Cartesian sampling. J. Magn. Reson. Imaging 2010; 31:1230–1235. © 2010 Wiley‐Liss, Inc.</abstract><cop>Hoboken</cop><pub>Wiley Subscription Services, Inc., A Wiley Company</pub><pmid>20432361</pmid><doi>10.1002/jmri.22140</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | 3.0T Adult Algorithms Anisotropy coronary vessel Coronary Vessels - anatomy & histology Feasibility Studies Female Humans Image Enhancement - methods Image Interpretation, Computer-Assisted - methods Magnetic Resonance Angiography - methods Male Middle Aged MR studies radial sampling Reproducibility of Results Sample Size Sensitivity and Specificity steady-state free precession Young Adult |
| title | Whole-heart coronary magnetic resonance angiography at 3.0T using short-TR steady-state free precession, vastly undersampled isotropic projection reconstruction |
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