Contrast-enhanced MR Angiography: The Effects of k-Space Truncation on Luminal Representation in a Carotid Artery Phantom Model
Using carotid bifurcation phantom models with different degrees of stenoses, we evaluated the accuracy of vessel lumen representation on MR images obtained from the inverse Fourier transform of different k-space percentages. Our results show that the lower thresholds of truncated k-space sampling ar...
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| Veröffentlicht in: | American journal of neuroradiology : AJNR 2000-06, Vol.21 (6), p.1028-1031 |
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| container_title | American journal of neuroradiology : AJNR |
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| creator | Melhem, Elias R Serfaty, Jean-Micheal Jones, Lisa Itoh, Ryuta Kuszyk, Brian S Martin, Jean-Baptiste Gailloud, Philippe Murphy, Kieran P.J Rufenacht, Daniel A |
| description | Using carotid bifurcation phantom models with different degrees of stenoses, we evaluated the accuracy of vessel lumen representation on MR images obtained from the inverse Fourier transform of different k-space percentages. Our results show that the lower thresholds of truncated k-space sampling are dictated by the severity of luminal narrowing. The defined thresholds may help improve efficiency of 3D MR imaging of the carotid arteries while maintaining adequate luminal representation. |
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The defined thresholds may help improve efficiency of 3D MR imaging of the carotid arteries while maintaining adequate luminal representation.</description><subject>Biological and medical sciences</subject><subject>Brain</subject><subject>Carotid Arteries - anatomy & histology</subject><subject>Carotid Stenosis - diagnosis</subject><subject>Cerebral Angiography - methods</subject><subject>Contrast Media</subject><subject>Differential Threshold</subject><subject>Humans</subject><subject>Magnetic Resonance Angiography - methods</subject><subject>Medical sciences</subject><subject>Neurology</subject><subject>Phantoms, Imaging</subject><subject>Vascular diseases and vascular malformations of the nervous system</subject><issn>0195-6108</issn><issn>1936-959X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2000</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpVkN2L1DAUxYso7uzqvyB5EN8K-WibxAdhGNYPmEVZR_At3GlvptE2qUnqME_-63bZ0VW4cOGew-9wz6NixbRoSl3rr4-LFWW6LhtG1UVxmdI3SmmtJX9aXCwnySiVq-LXJvgcIeUSfQ--xY7c3JK1P7hwiDD1p9dk1yO5thbbnEiw5Hv5eYIWyS7OvoXsgifLbOfReRjILU4RE_p8rzhPgGwghuw6so4Z44l8WnJyGMlN6HB4VjyxMCR8ft5XxZe317vN-3L78d2HzXpb9oLzXHYaqtY2DICCYBQ6XgPaWjFdAWgJwOtO7rmtm6riomrsXjLNmpYraVEpKq6KN_fcad6P2LV49_VgpuhGiCcTwJn_Fe96cwg_jdRSKKUXwKszIIYfM6ZsRpdaHAbwGOZkJONMS6kW44t_k_5G_Ol8Mbw8GyC1MNi41O7Sg08oyYV4COzdoT-6iCaNMAwLlZnj8ciZaRYmV-I3PhKa1g</recordid><startdate>20000601</startdate><enddate>20000601</enddate><creator>Melhem, Elias R</creator><creator>Serfaty, Jean-Micheal</creator><creator>Jones, Lisa</creator><creator>Itoh, Ryuta</creator><creator>Kuszyk, Brian S</creator><creator>Martin, Jean-Baptiste</creator><creator>Gailloud, Philippe</creator><creator>Murphy, Kieran P.J</creator><creator>Rufenacht, Daniel A</creator><general>Am Soc Neuroradiology</general><general>American Society of Neuroradiology</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>20000601</creationdate><title>Contrast-enhanced MR Angiography: The Effects of k-Space Truncation on Luminal Representation in a Carotid Artery Phantom Model</title><author>Melhem, Elias R ; Serfaty, Jean-Micheal ; Jones, Lisa ; Itoh, Ryuta ; Kuszyk, Brian S ; Martin, Jean-Baptiste ; Gailloud, Philippe ; Murphy, Kieran P.J ; Rufenacht, Daniel A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-h322t-d9a4cf61aa0a310ad25aef58194aa97aa25d7b2f56442346fb71916c287fe8803</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2000</creationdate><topic>Biological and medical sciences</topic><topic>Brain</topic><topic>Carotid Arteries - anatomy & histology</topic><topic>Carotid Stenosis - diagnosis</topic><topic>Cerebral Angiography - methods</topic><topic>Contrast Media</topic><topic>Differential Threshold</topic><topic>Humans</topic><topic>Magnetic Resonance Angiography - methods</topic><topic>Medical sciences</topic><topic>Neurology</topic><topic>Phantoms, Imaging</topic><topic>Vascular diseases and vascular malformations of the nervous system</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Melhem, Elias R</creatorcontrib><creatorcontrib>Serfaty, Jean-Micheal</creatorcontrib><creatorcontrib>Jones, Lisa</creatorcontrib><creatorcontrib>Itoh, Ryuta</creatorcontrib><creatorcontrib>Kuszyk, Brian S</creatorcontrib><creatorcontrib>Martin, Jean-Baptiste</creatorcontrib><creatorcontrib>Gailloud, Philippe</creatorcontrib><creatorcontrib>Murphy, Kieran P.J</creatorcontrib><creatorcontrib>Rufenacht, Daniel A</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>American journal of neuroradiology : AJNR</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Melhem, Elias R</au><au>Serfaty, Jean-Micheal</au><au>Jones, Lisa</au><au>Itoh, Ryuta</au><au>Kuszyk, Brian S</au><au>Martin, Jean-Baptiste</au><au>Gailloud, Philippe</au><au>Murphy, Kieran P.J</au><au>Rufenacht, Daniel A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Contrast-enhanced MR Angiography: The Effects of k-Space Truncation on Luminal Representation in a Carotid Artery Phantom Model</atitle><jtitle>American journal of neuroradiology : AJNR</jtitle><addtitle>AJNR Am J Neuroradiol</addtitle><date>2000-06-01</date><risdate>2000</risdate><volume>21</volume><issue>6</issue><spage>1028</spage><epage>1031</epage><pages>1028-1031</pages><issn>0195-6108</issn><eissn>1936-959X</eissn><coden>AAJNDL</coden><abstract>Using carotid bifurcation phantom models with different degrees of stenoses, we evaluated the accuracy of vessel lumen representation on MR images obtained from the inverse Fourier transform of different k-space percentages. Our results show that the lower thresholds of truncated k-space sampling are dictated by the severity of luminal narrowing. The defined thresholds may help improve efficiency of 3D MR imaging of the carotid arteries while maintaining adequate luminal representation.</abstract><cop>Oak Brook, IL</cop><pub>Am Soc Neuroradiology</pub><pmid>10871007</pmid><tpages>4</tpages></addata></record> |
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| source | MEDLINE; EZB-FREE-00999 freely available EZB journals; PubMed Central |
| subjects | Biological and medical sciences Brain Carotid Arteries - anatomy & histology Carotid Stenosis - diagnosis Cerebral Angiography - methods Contrast Media Differential Threshold Humans Magnetic Resonance Angiography - methods Medical sciences Neurology Phantoms, Imaging Vascular diseases and vascular malformations of the nervous system |
| title | Contrast-enhanced MR Angiography: The Effects of k-Space Truncation on Luminal Representation in a Carotid Artery Phantom Model |
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