| 刘夏天,谢明星,王新房,吕清,刘定西,王莉霞,方凌云,袁莉,郑智超.主动脉瓣反流的定量评估:实时三维彩色多普勒血流成像与MRI对照研究[J].中国医学影像技术,2006,22(4):483~486 |
| 主动脉瓣反流的定量评估:实时三维彩色多普勒血流成像与MRI对照研究 |
| Quantitative assessment of aortic regurgitation: a comparison between real-time three-dimensional color Doppler flow imaging and magnetic resonance imaging |
| 投稿时间：2005-11-27 修订日期：2006-01-21 |
| DOI： |
| 中文关键词: 实时三维超声心动图 磁共振成像 主动脉瓣关闭不全 |
| 英文关键词:Real-time three-dimensional echocardiography Magnetic resonance imaging Aortic valve insufficiency |
| 基金项目:本研究受湖北省科技厅自然科学基金资助(4-259)。 |
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| 中文摘要: |
| 目的 探讨实时三维彩色多普勒血流成像(RT-3D CDFI)定量评估主动脉瓣反流的价值。方法 选取17例单纯性主动脉瓣反流。实时三维超声心动图采集全容积数据库和三维彩色血流信号数据库,导入TomTec三维图像工作站脱机测量左室舒张末期容积(LVEDV)、左室收缩末期容积(LVESV) 和主动脉瓣彩色反流束容积(RJV), 并计算左室每搏量(LVSV)和RJV/LVSV (%)。 MRI测量LVEDV、LVESV 和RJV, 并计算LVSV和RJV/LVSV (%)。RT-3D CDFI和MRI的测值行相关性分析。结果 RT-3D CDFI和MRI评价主动脉瓣反流的测值相关性良好,其中RJV测值相关性为r=0.92, Y=0.88X+3.32, P<0.0001,二者间的均数差为-2.0 ml,标准差为9.5 ml;RJV/LVSV(%)测值的相关性为r=0.88, Y=1.16X-10.74, P<0.0001,二者间的均数差为-2.8％,标准差为7.9％。结论 RT-3D CDFI可对主动脉瓣反流进行准确定量评估,为临床评价主动脉瓣反流提供了一种简便、可靠的新方法。 |
| 英文摘要: |
| Objective To explore the accuracy of real-time three-dimensional color Doppler flow imaging (RT-3D CDFI) in evaluating the severity of aortic regurgitation. Methods In seventeen patients with isolated aortic regurgitation, real-time three-dimensional echocardiography studies were performed to acquire three-dimensional color Doppler flow data and full-volume data. All data were imported and processed with TomTec three-dimensional imaging workstation, regurgitate flow jet volumes (RJV), left ventricular end-diastolic volumes (LVEDV), end-systolic volumes (LVESV) were obtained, then left ventricular stroke volumes (LVSV) and RJV/LVSV (%) were calculated. MRI scanning proceeded immediately after echocardiography examination. The RJV, RJV/LVSV (%) obtained by MRI were served as reference values. Results Aortic RJV measured by the RT-3D CDFI method showed a good correlation with the MRI measurements (r=0.92, Y=0.88X+3.32, P<0.0001); the mean difference (SD) between the two methods was -2.0 (9.5) ml. RJV/LVSV (%) estimated by RT-3D CDFI also correlated well with the values obtained MRI (r=0.88, Y=1.16X-10.74, P<0.0001); the mean difference (SD) between the two methods was -2.8% (7.9%). Conclusion The newly developed RT-3D CDFI technique is feasible in the majority of patients. In patients with eccentric aortic regurgitation, this new modality provides additional information to that obtained from two-dimensional examination, which overcomes the inherent limitations of two-dimensional echocardiography Doppler flow imaging by depicting the full extent of the jet trajectory. In addition, RT-3D CDFI examination is accurate and time-saving in quantitative assessing of aortic regurgitation. |
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