Coronary arteries: three-dimensional MR imaging with fat saturation and magnetization transfer contrast.

Li, Debiao; Paschal, Cynthia B.; Haacke, E. Mark; Adler, Lee P.

doi:10.1148/radiology.187.2.8475281

Cited by 216 publications

(117 citation statements)

References 18 publications

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“…The gain is up to almost 21% compared with turbo field-echo imaging. Absolute measurements of the left coronary artery and right coronary artery yield superior values to most measurements reported in the literature [26,27] and are close to the coronary are artery lengths reported by Li et al [28]. As a result of the increased visualization of the coronary arteries in most volunteers, the right coronary artery was clearly visible in the inferior part of the right atrioventricular groove and in the proximal part of the inferior interventricular groove.…”

Section: B Asupporting

confidence: 82%

Improved Visualization of Coronary Arteries Using a New Three-Dimensional Submillimeter MR Coronary Angiography Sequence with Balanced Gradients

Giorgi

Dymarkowski

Maes

et al. 2002

American Journal of Roentgenology

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OBJECTIVE. The goal of our study was to evaluate a new three-dimensional real-time navigator MR coronary angiography sequence to noninvasively visualize the coronary arteries.SUBJECTS AND METHODS. Fifteen healthy volunteers underwent MR coronary angiography with a new balanced turbo field-echo sequence in comparison with the standard turbo field-echo sequence. Signal-to-noise, blood-to-myocardium, blood-to-fat, and blood-topericardial fluid contrast ratios of the left and right coronary artery systems were measured. Image quality was graded, the length and diameter of the coronary arteries were measured, and the number of visible side branches was assessed.RESULTS. The balanced turbo field-echo images yielded a higher blood-to-myocardium and blood-to-pericardial fluid contrast ratio, a similar blood-to-fat contrast ratio, and a lower signal-to-noise ratio than the turbo field-echo images. On a 5-point grading scale (1, nondiagnostic or unreadable; 2, poor; 3, moderate; 4, good; 5, excellent), image quality was rated significantly better for the balanced turbo field-echo sequence than for the turbo field-echo sequence (left coronary artery, 4.0 ± 0.6 vs 3.6 ± 0.5 [ p = 0.015]; right coronary artery, 4.4 ± 0.4 vs 3.6 ± 0.4 [ p < 0.0001], respectively), resulting in a significantly longer segment of the three major coronary arteries visualized (left anterior descending coronary artery, 92 ± 21 mm vs 79 ± 24 mm; left circumflex coronary artery, 70 ± 7 mm vs 60 ± 18 mm; right coronary artery, 112 ± 28 mm vs 95 ± 27 mm) and a significantly higher number of side branches visualized (left anterior descending coronary artery, 2.9 ± 1.3 vs 1.5 ± 1.3; left circumflex coronary artery, 2.1 ± 1.7 vs 1.0 ± 1.2; right coronary artery, 3.7 ± 1.7 vs 2.6 ± 1.5). Mean imaging time per coronary artery was significantly shorter for the balanced turbo field-echo sequence (5.7 ± 1.0 min) than for the turbo field-echo sequence (8.4 ± 1.4 min) ( p < 0.0001).CONCLUSION. Compared with standard turbo field-echo MR coronary angiography, optimized balanced turbo field-echo MR coronary angiography improves the visualization of the coronary arteries and their side branches within a significantly shorter imaging time.oronary artery disease remains one of the leading causes of morbidity and mortality in the industrialized countries. Catheter angiography, currently the gold standard in detecting atheromatous coronary artery disease, is invasive and potentially harmful and necessitates the use of iodinated contrast material and radiation. Therefore, several techniques are under research to depict atheromatous changes in the coronary arteries in a noninvasive or less invasive fashion [1,2]. This technique could be used to screen or select patients for coronary catherization, which would significantly reduce the number of unnecessary diagnostic catherizations and would thus be potentially cost-effective. Three-dimensional (3D) MR coronary angiography techniques, performed either in breath-hold [3][4][5] or during free-breathing using a navigator [6,7...

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Section: B Asupporting

confidence: 82%

Improved Visualization of Coronary Arteries Using a New Three-Dimensional Submillimeter MR Coronary Angiography Sequence with Balanced Gradients

Giorgi

Dymarkowski

Maes

et al. 2002

American Journal of Roentgenology

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“…A summary of recent coronary MRA studies reporting on visualization of coronary arteries in healthy volunteers and patients with coronary artery disease is presented in Table 5. Both 2D 24,179 -182 and 3D 172,178,179,[183][184][185][186] approaches have been used at multiple centers with similar results. The origin and proximal coronary arteries are visualized in Ͼ95% of subjects.…”

Section: Mra Of the Coronary And Pulmonary Arteriesmentioning

confidence: 99%

Magnetic Resonance Angiography

Yucel¹,

Anderson²,

Edelman³

et al. 1999

Circulation

125

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“…The utility of such a technique in a noncontrast breath-hold mode was first described by Li et al [3,4], who performed a …”

Section: Discussionmentioning

confidence: 99%

Contrast-enhanced three-dimensional MR angiography in a single breath-hold: a novel technique.

Shetty

Shirkhoda²,

Bis³

et al. 1995

American Journal of Roentgenology

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Coronary arteries: three-dimensional MR imaging with fat saturation and magnetization transfer contrast.

Cited by 216 publications

References 18 publications

Improved Visualization of Coronary Arteries Using a New Three-Dimensional Submillimeter MR Coronary Angiography Sequence with Balanced Gradients

Improved Visualization of Coronary Arteries Using a New Three-Dimensional Submillimeter MR Coronary Angiography Sequence with Balanced Gradients

Magnetic Resonance Angiography

Contrast-enhanced three-dimensional MR angiography in a single breath-hold: a novel technique.

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