Cardiac MR compressed sensing cine sequence for evaluating biventricular function in patients with congenital heart disease
10.13929/j.issn.1003-3289.2024.06.012
- VernacularTitle:心脏MR压缩感知电影序列用于评估先天性心脏病患者双心室功能
- Author:
Jiaxin XIE
1
;
Yinghui GE
;
Qing LIN
;
Ru WEN
;
Jiajia WANG
;
Gejun ZHANG
Author Information
1. 郑州大学阜外华中医院阜外华中心血管病医院放射科河南省心脏病影像医学重点实验室,河南郑州 451460
- Keywords:
heart diseases;
ventricular function;
magnetic resonance imaging,cine;
prospective studies
- From:
Chinese Journal of Medical Imaging Technology
2024;40(6):853-857
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe the value of cardiac MR(CMR)compressed sensing(CS)sequence and conventional movie(CM)sequence for evaluating biventricular function in patients with congenital heart disease(CHD).Methods A total of 71 patients with CHD,including 31 cases with regular heart rhythm(regular heart rhythm group)and 40 cases with arrhythmia(arrhythmia group)were prospectively collected and scanned with CM and CS sequences.The scanning time of 2 sequences were recorded,and subjective scores of imaging quality of 2 kinds of images were compared.The differences,consistency and correlation between quantitative parameters of biventricular function measured on 2 kinds of images were analyzed.Results The acquisition time of CS was(18.87±1.75)s,of CM was(147.56±5.23)s,which was shortened by 87.21％than CS.The quality of both 2 kinds of images met the diagnostic requirements.The subjective scores of CS images were lower than that of CM in regular heart rhythm group(4[3,5]vs.4[4,5],Z=-2.070,P=0.038),while of CS images were higher than that of CM images in arrhythmia group(4[4,4]vs.3[4,4],Z=-2.673,P=0.008).No significant difference of the left ventricular function parameters was detected obtained based on 2 kinds of images in all 71 cases,nor in regular heart rhythm group as well as in arrhythmia group(all P＞0.05).Meanwhile,the right ventricular(RV)end-diastolic volume index(EDVI)obtained based on CM and CS images were not significantly different(all P＞0.05),but significant differences of ejection fraction(EF),end-systolic volume index(ESVI)and stroke volume index(SVI)were found in all 71 cases,in regular heart rhythm group and in arrhythmia group(all P＜0.05).CMR parameters of biventricular function measured on CM and CS images were all consistent and positively correlated(all P＜0.05).Conclusion CS sequence could be used to accurately assess biventricular function of CHD patients,significantly improve imaging quality and shorten scanning time.
