Three-dimensional coronary magnetic resonance angiography with injection of extracellular contrast medium

被引:16
作者
Sakuma, H
Goto, M
Nomura, Y
Kato, N
Takeda, K
Higgins, CB
机构
[1] Mie Univ, Sch Med, Dept Radiol, Tsu, Mie 514, Japan
[2] Univ Calif San Francisco, Dept Radiol, San Francisco, CA 94143 USA
关键词
magnetic resonance angiography; contrast medium coronary vessels; coronary artery disease;
D O I
10.1097/00004424-199908000-00002
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
RATIONALE AND OBJECTIVES. TO evaluate serial changes of the signal intensity and the contrast-to-noise ratios of the coronary arteries on three-dimensional (3D) coronary magnetic resonance angiography (MRA) after an injection of extracellular contrast medium, and to demonstrate the feasibility of this method for the diagnosis of coronary artery abnormalities. METHODS. Five healthy volunteers and two patients with Kawasaki disease and an anomalous coronary artery were studied. Coronary MRAs of the left anterior descending artery and the right coronary artery were obtained using a fat-suppressed 3D MRA sequence before and 0 to 5, 10 to 15, 20 to 25, and 30 to 35 minutes after administration of Gd-DTPA-BMA. RESULTS. Administration of the contrast agent provided a significant increase in the signal intensity and contrast-to-noise ratio. Aneurysm of the left anterior descending artery in Kawasaki disease and the proximal course of the anomalous right coronary artery, which were not well depicted on precontrast 3D MRA, were clearly demonstrated after contrast injection. CONCLUSIONS. The current study demonstrated that the use of an extracellular gadolinium contrast agent can significantly improve the clinical usefulness of 3D coronary MRA.
引用
收藏
页码:503 / 508
页数:6
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