Reliability of 4D flow cardiac MRI for measuring hemodynamic parameters of left ventricle
10.13929/j.issn.1003-3289.2024.02.014
- VernacularTitle:4D flow心脏MRI测量左心室血流动力学参数的可靠性
- Author:
Lirong MA
1
,
2
;
Jiaxuan GUO
;
Wenling LI
;
Li MA
;
Yan ZHENG
;
Huairong ZHANG
;
Li ZHU
Author Information
1. 宁夏医科大学临床医学院,宁夏银川 750004
2. 宁夏医科大学总医院放射科,宁夏银川 750004
- Keywords:
heart ventricles;
hemodynamics;
magnetic resonance imaging
- From:
Chinese Journal of Medical Imaging Technology
2024;40(2):221-225
- CountryChina
- Language:Chinese
-
Abstract:
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.
