Coronary artery imaging using contrast-enhanced 3D segmented EPI

Vibhas S. Deshpande; Piotr A. Wielopolski; Steven M. Shea; James Carr; Jie Zheng; Debiao Li

doi:10.1002/jmri.1095

Coronary artery imaging using contrast-enhanced 3D segmented EPI

Vibhas S. Deshpande, Piotr A. Wielopolski, Steven M. Shea, James Carr, Jie Zheng, Debiao Li

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21 Scopus citations

Abstract

The purpose of the work was to evaluate the effectiveness of extracellular contrast media in improving MR coronary angiography using breath-hold segmented echo-planar imaging (SEPI). Two protocols were designed to optimize the inversion recovery-prepared contrast-enhanced SEPI method. In 15 healthy volunteers, significant improvements in signal-to-noise ratio (SNR), contrast-to-noise ratio (CNR), vessel sharpness, and length of visualization were observed post-contrast. The method with two targeted scans to cover the left and right arteries, respectively, following separate 20-mL contrast injections, was found to yield thinner slices and longer right coronary artery (RCA) visualization than a single scan following a 40-mL contrast injection without compromising SNR and CNR. In conclusion, extracellular contrast media substantially improves the delineation of coronary arteries with SEPI.

Original language	English
Pages (from-to)	676-681
Number of pages	6
Journal	Journal of Magnetic Resonance Imaging
Volume	13
Issue number	5
DOIs	https://doi.org/10.1002/jmri.1095
State	Published - 2001

Keywords

Contrast agents
Coronary arteries
MR angiography
Magnetic resonance imaging (MRI)
Segmented echo-planar imaging (SEPI)

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10.1002/jmri.1095

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title = "Coronary artery imaging using contrast-enhanced 3D segmented EPI",

abstract = "The purpose of the work was to evaluate the effectiveness of extracellular contrast media in improving MR coronary angiography using breath-hold segmented echo-planar imaging (SEPI). Two protocols were designed to optimize the inversion recovery-prepared contrast-enhanced SEPI method. In 15 healthy volunteers, significant improvements in signal-to-noise ratio (SNR), contrast-to-noise ratio (CNR), vessel sharpness, and length of visualization were observed post-contrast. The method with two targeted scans to cover the left and right arteries, respectively, following separate 20-mL contrast injections, was found to yield thinner slices and longer right coronary artery (RCA) visualization than a single scan following a 40-mL contrast injection without compromising SNR and CNR. In conclusion, extracellular contrast media substantially improves the delineation of coronary arteries with SEPI.",

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AU - Deshpande, Vibhas S.

AU - Wielopolski, Piotr A.

AU - Shea, Steven M.

AU - Carr, James

AU - Zheng, Jie

AU - Li, Debiao

PY - 2001

Y1 - 2001

N2 - The purpose of the work was to evaluate the effectiveness of extracellular contrast media in improving MR coronary angiography using breath-hold segmented echo-planar imaging (SEPI). Two protocols were designed to optimize the inversion recovery-prepared contrast-enhanced SEPI method. In 15 healthy volunteers, significant improvements in signal-to-noise ratio (SNR), contrast-to-noise ratio (CNR), vessel sharpness, and length of visualization were observed post-contrast. The method with two targeted scans to cover the left and right arteries, respectively, following separate 20-mL contrast injections, was found to yield thinner slices and longer right coronary artery (RCA) visualization than a single scan following a 40-mL contrast injection without compromising SNR and CNR. In conclusion, extracellular contrast media substantially improves the delineation of coronary arteries with SEPI.

AB - The purpose of the work was to evaluate the effectiveness of extracellular contrast media in improving MR coronary angiography using breath-hold segmented echo-planar imaging (SEPI). Two protocols were designed to optimize the inversion recovery-prepared contrast-enhanced SEPI method. In 15 healthy volunteers, significant improvements in signal-to-noise ratio (SNR), contrast-to-noise ratio (CNR), vessel sharpness, and length of visualization were observed post-contrast. The method with two targeted scans to cover the left and right arteries, respectively, following separate 20-mL contrast injections, was found to yield thinner slices and longer right coronary artery (RCA) visualization than a single scan following a 40-mL contrast injection without compromising SNR and CNR. In conclusion, extracellular contrast media substantially improves the delineation of coronary arteries with SEPI.

KW - Contrast agents

KW - Coronary arteries

KW - MR angiography

KW - Magnetic resonance imaging (MRI)

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Coronary artery imaging using contrast-enhanced 3D segmented EPI

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Keywords

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