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Article: Efficacy of slow infusion of gadolinium contrast agent in three- dimensional MR coronary artery imaging

TitleEfficacy of slow infusion of gadolinium contrast agent in three- dimensional MR coronary artery imaging
Authors
KeywordsContrast agents
Coronary artery
MR angiography
Issue Date1999
Citation
Journal of Magnetic Resonance Imaging, 1999, v. 10, n. 5, p. 800-805 How to Cite?
AbstractThe impact of the contrast infusion scheme on contrast-enhanced coronary artery imaging was investigated. The imaging technique was a retrospective respiratory-gated gradient-echo sequence. To improve the contrast between blood vessels and myocardium, an inversion pulse was applied to null the myocardial signal. Extravascular contrast agent was infused slowly during data acquisition. Two contrast infusion schemes were compared in animal and volunteer studies and with simulations. One scheme enhanced blood signals during acquisition of both peripheral and central k-space data, which resulted in a relatively fiat low-pass k-space filter. The other scheme mainly enhanced blood signals during acquisition of central k-space data, which resulted in a sharp low-pass k-space filter. It is concluded that the former scheme improves the signal-to-noise ratio and edge definition of coronary arteries compared with the latter scheme.
Persistent Identifierhttp://hdl.handle.net/10722/315917
ISSN
2021 Impact Factor: 5.119
2020 SCImago Journal Rankings: 1.563

 

DC FieldValueLanguage
dc.contributor.authorZheng, Jie-
dc.contributor.authorBae, Kyongtae T.-
dc.contributor.authorWoodard, Pamela K.-
dc.contributor.authorHaacke, E. Mark-
dc.contributor.authorLi, Debiao-
dc.date.accessioned2022-08-24T15:48:35Z-
dc.date.available2022-08-24T15:48:35Z-
dc.date.issued1999-
dc.identifier.citationJournal of Magnetic Resonance Imaging, 1999, v. 10, n. 5, p. 800-805-
dc.identifier.issn1053-1807-
dc.identifier.urihttp://hdl.handle.net/10722/315917-
dc.description.abstractThe impact of the contrast infusion scheme on contrast-enhanced coronary artery imaging was investigated. The imaging technique was a retrospective respiratory-gated gradient-echo sequence. To improve the contrast between blood vessels and myocardium, an inversion pulse was applied to null the myocardial signal. Extravascular contrast agent was infused slowly during data acquisition. Two contrast infusion schemes were compared in animal and volunteer studies and with simulations. One scheme enhanced blood signals during acquisition of both peripheral and central k-space data, which resulted in a relatively fiat low-pass k-space filter. The other scheme mainly enhanced blood signals during acquisition of central k-space data, which resulted in a sharp low-pass k-space filter. It is concluded that the former scheme improves the signal-to-noise ratio and edge definition of coronary arteries compared with the latter scheme.-
dc.languageeng-
dc.relation.ispartofJournal of Magnetic Resonance Imaging-
dc.subjectContrast agents-
dc.subjectCoronary artery-
dc.subjectMR angiography-
dc.titleEfficacy of slow infusion of gadolinium contrast agent in three- dimensional MR coronary artery imaging-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/(SICI)1522-2586(199911)10:5<800::AID-JMRI26>3.0.CO;2-L-
dc.identifier.pmid10548791-
dc.identifier.scopuseid_2-s2.0-0032733754-
dc.identifier.volume10-
dc.identifier.issue5-
dc.identifier.spage800-
dc.identifier.epage805-

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