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Article: Three-Dimensional Gadolinium-Enhanced Coronary Magnetic Resonance Angiography: Initial Experience

TitleThree-Dimensional Gadolinium-Enhanced Coronary Magnetic Resonance Angiography: Initial Experience
Authors
KeywordsContrast agents
Coronary artery
MR angiography
Issue Date1999
Citation
Journal of Cardiovascular Magnetic Resonance, 1999, v. 1, n. 1, p. 33-41 How to Cite?
AbstractWe present our initial experience on first-pass gadolinium-enhanced coronary artery magnetic resonance angiography (MRA). Three-dimensional segmented gradient-echo sequences were developed to image coronary arteries within a single breathhold during the injection of a double-dose contrast agent. Comparisons were made between a short TR of 2.7-msec (n = 5) and a long TR of 5.0-msec (n = 3) sequences in tenus of the signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR). An in-plane resolution of roughly 1 × 1 mm2 was achieved. Dramatic vascular signal enhancement by a factor of 3-5 was obtained in volunteers following the contrast agent injection, allowing for clear visualization of proximal coronary arteries. The longer TR scans generally performed better in terms of SNR and CNR improvement (approximately 50%) but allowed for less coverage. These preliminary results suggest that gadolinium-enhanced MRA is a useful tool to study proximal coronary arteries with breathhold, but for a larger coverage, a multiple dose approach may be necessary.
Persistent Identifierhttp://hdl.handle.net/10722/316154
ISSN
2023 Impact Factor: 4.2
2023 SCImago Journal Rankings: 2.242
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZheng, Jie-
dc.contributor.authorLi, Debiao-
dc.contributor.authorBae, Kyongtae T.-
dc.contributor.authorWoodard, Pamela-
dc.contributor.authorHaacke, E. Mark-
dc.date.accessioned2022-08-24T15:49:26Z-
dc.date.available2022-08-24T15:49:26Z-
dc.date.issued1999-
dc.identifier.citationJournal of Cardiovascular Magnetic Resonance, 1999, v. 1, n. 1, p. 33-41-
dc.identifier.issn1097-6647-
dc.identifier.urihttp://hdl.handle.net/10722/316154-
dc.description.abstractWe present our initial experience on first-pass gadolinium-enhanced coronary artery magnetic resonance angiography (MRA). Three-dimensional segmented gradient-echo sequences were developed to image coronary arteries within a single breathhold during the injection of a double-dose contrast agent. Comparisons were made between a short TR of 2.7-msec (n = 5) and a long TR of 5.0-msec (n = 3) sequences in tenus of the signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR). An in-plane resolution of roughly 1 × 1 mm2 was achieved. Dramatic vascular signal enhancement by a factor of 3-5 was obtained in volunteers following the contrast agent injection, allowing for clear visualization of proximal coronary arteries. The longer TR scans generally performed better in terms of SNR and CNR improvement (approximately 50%) but allowed for less coverage. These preliminary results suggest that gadolinium-enhanced MRA is a useful tool to study proximal coronary arteries with breathhold, but for a larger coverage, a multiple dose approach may be necessary.-
dc.languageeng-
dc.relation.ispartofJournal of Cardiovascular Magnetic Resonance-
dc.subjectContrast agents-
dc.subjectCoronary artery-
dc.subjectMR angiography-
dc.titleThree-Dimensional Gadolinium-Enhanced Coronary Magnetic Resonance Angiography: Initial Experience-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.3109/10976649909080831-
dc.identifier.pmid11550339-
dc.identifier.scopuseid_2-s2.0-0033302114-
dc.identifier.volume1-
dc.identifier.issue1-
dc.identifier.spage33-
dc.identifier.epage41-
dc.identifier.isiWOS:000084970700006-

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