Coronary artery magnetic resonance angiography (MRA):: A comparison between the whole-heart and volume-targeted methods using a T2-prepared SSFP sequence
Coronary artery magnetic resonance angiography (MRA):: A comparison between the whole-heart and volume-targeted methods using a T2-prepared SSFP sequence
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DOI：
10.1080/10976640600723706
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发表时间：
2006-01-01
影响因子：
6.4
通讯作者：
Li, Debiao
中科院分区：
文献类型：
--
作者：
Bi, Xiaoming;Deshpande, Vibhas;Li, Debiao
在这项研究中，使用具有可比成像参数的全心和体积靶向扫描对 10 名健康志愿者进行了冠状动脉 MRA。在 SNR、CNR 和血管直径方面也观察到了类似的结果。使用全心扫描显示的冠状动脉长度更长（全心：RCA/LAD = 13.4 +/- 3.9/10.5 +/- 1.6 cm；体积目标：RCA/LAD = 11.0 +/- 2.6/8.7 +/- 1.8 cm）。 RCA 靶向（3.8 +/- 1.4 分钟）和 LAD 靶向（3.6 +/- 1.3 分钟）的成像时间相似，而一次全心扫描所需的时间明显更长（12.2 +/- 4.0 分钟）。使用体积目标方法测得的血管清晰度更高（全心：RCA/LAD = 0.65 +/- 0.18/0.78 +/- 0.16；体积目标：RCA/LAD = 0.84 +/- 0.22/0.90 +/-0.20）。全心和体积靶向方法的结合可能在冠状动脉 MRA 的临床应用中具有潜在的用途。
In this study, coronary MRA was performed on 10 healthy volunteers using the whole-heart and volume-targeted scans with comparable imaging parameters. Similar results in the SNR, CNR, and vessel diameter were observed. The depicted length of coronary arteries was longer using the whole-heart scan (whole-heart: RCA/LAD = 13.4 +/- 3.9/10.5 +/- 1.6 cm; volume-targeted: RCA/LAD = 11.0 +/- 2.6/8.7 +/- 1.8 cm). Imaging times for the RCA- (3.8 +/- 1.4 minutes) and LAD-targeted (3.6 +/- 1.3 minutes) are similar, while the time required for one whole-heart scan is significantly longer (12.2 +/- 4.0 minutes). The measured vessel sharpness was higher using the volume-targeted method (whole-heart: RCA/LAD = 0.65 +/- 0.18/0.78 +/- 0.16; volume-targeted: RCA/LAD = 0.84 +/- 0.22/0.90 +/-0.20). Combination of the whole-heart and volume-targeted methods could be potentially useful in clinical applications of coronary MRA.