| 马丽荣,郭家璇,李文玲,马丽,郑琰,张怀瑢,朱力.4D flow心脏MRI测量左心室血流动力学参数的可靠性[J].中国医学影像技术,2024,40(2):221~225 |
| 4D flow心脏MRI测量左心室血流动力学参数的可靠性 |
| Reliability of 4D flow cardiac MRI for measuring hemodynamic parameters of left ventricle |
| 投稿时间：2023-08-16 修订日期：2023-10-25 |
| DOI：10.13929/j.issn.1003-3289.2024.02.014 |
| 中文关键词: 心室 血流动力学 磁共振成像 |
| 英文关键词:heart ventricles hemodynamics magnetic resonance imaging |
| 基金项目:国家重点研发计划（2022YFC2010000）、宁夏回族自治区中央引导地方科技发展专项项目（2023FRD05010）。 |
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| 中文摘要: |
| 目的 观察基于心脏MRI（CMRI）以局部区域性4D flow及全心4D flow技术测量左心室血流动力学参数的可靠性。方法 前瞻性对31名健康体健者采用心脏超声、三腔心4D flow（基于左心室流入流出道层面）及全心4D flow CMRI测量左心室血流动力学参数，以组内相关系数（ICC）评估其所测左心室血流动力学参数的一致性。结果 心脏超声与三腔心4D flow CMRI所测收缩期主动脉瓣上/瓣下峰值流速、舒张期二尖瓣E峰流速、主动脉瓣上/瓣下压力及主动脉瓣跨瓣压差的一致性均良好（ICC均>0.75），所测舒张期二尖瓣A峰流速的一致性中等（ICC为0.718）；心脏超声与全心4D flow CMRI所测收缩期主动脉瓣上/瓣下峰值流速、舒张期二尖瓣A峰流速及主动脉瓣上/瓣下压力的一致性均良好（ICC均>0.75），所测舒张期二尖瓣E峰流速及主动脉瓣跨瓣压差的一致性均为中等（ICC分别为0.600及0.628）；三腔心4D flow CMRI与全心4D flow CMRI测量上述指标结果的一致性均良好（ICC均>0.75）。结论 基于CMRI以局部区域性4D flow与全心4D flow技术测量左心室血流动力学参数可靠，与心脏超声测量结果具有良好一致性。 |
| 英文摘要: |
| Objective To observe the reliability of regional 4D flow and whole heart 4D flow cardiac MRI (CMRI) for measuring hemodynamic parameters of left ventricle. Methods Heart ultrasonography and CMRI were prospectively obtained in 31 healthy subjects. Hemodynamic parameters of left ventricle were measured using heart ultrasound, 3-chamber 4D flow CMRI (based on inflow and outflow channel of left ventricle) and whole heart 4D flow CMRI, respectively. Intra-class correlation coefficient (ICC) was performed to evaluate the consistencies of the measured left ventricle hemodynamic parameters among the above 3 methods. Results Good consistencies of peak systolic velocity in aortic supravalvular/subvalvular, E peak diastolic velocity of mitral valve, supravalvular/subvalvular aortic pressure and aortic valve pressure gradient (all ICC>0.75), while moderate consistency of A peak diastolic velocity of mitral valve (ICC=0.718) were found between heart ultrasound and 3-chamber 4D flow CMRI. Good consistencies of peak systolic velocity in aortic supravalvular/subvalvular, A peak diastolic velocity of mitral valve and supravalvular/subvalvular aortic pressure (all ICC>0.75), while moderate consistencies of E peak diastolic velocity of mitral valve and aortic valve pressure gradient (ICC=0.600, 0.628) were found between heart ultrasound and whole heart 4D flow CMRI. Meanwhile, good consistencies of the above parameters were found between 3-chamber 4D flow CMRI and whole heart 4D flow CMRI (all ICC>0.75). Conclusion Measuring left ventricular hemodynamic parameters using local regional 4D flow and whole heart 4D flow CMRI were reliable, with good consistency with cardiac ultrasound. |
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