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  

Cardiac MR compressed sensing cine sequence for evaluating biventricular function in patients with congenital heart disease

作　　者：谢佳鑫 葛英辉[1] 林青 温茹[1] 王佳佳[1] 张戈军 XIE Jiaxin;GE Yinghui;LIN Qing;WEN Ru;WANG Jiajia;ZHANG Gejun(Department of Radiology,Central China Fuwai Hospital of Zhengzhou University,Fuwai Central China Cardiovascular Hospital,Henan Provincial Key Laboratory of Cardiology Medical Imaging,Zhengzhou 451460,China;Department of Cardiovascular Medicine,National Center for Cardiovascular Disease,Fuwai Hospital,Chinese Academy of Medical Sciences,Beijing 100037,China)

机构地区：[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 [2]国家心血管病中心中国医学科学院阜外医院心内科,北京100037

出　　处：《中国医学影像技术》2024年第6期853-857,共5页Chinese Journal of Medical Imaging Technology

摘　　要：目的观察心脏MR(CMR)压缩感知(CS)序列与常规电影(CM)序列用于评估先天性心脏病(CHD)患者双心室功能的价值。方法前瞻性对71例CHD患者(心律齐组31例、心律不齐组40例)行心脏CM及CS序列扫描,记录2种序列扫描时间;对比2种图像质量主观评分,分析于2种图像上所测双心室功能定量参数的差异、一致性及其相关性。结果CS图像采集时间为(18.87±1.75)s,较CM[(147.56±5.23)s]缩短87.21%。2种图像质量均符合诊断要求,心律齐组CS图像主观评分低于CM图像[4(3,5)vs.4(4,5),Z=-2.070,P=0.038];心律不齐组CS图像主观评分高于CM图像[4(4,4)vs.3(4,4),Z=-2.673,P=0.008]。于2种图像所测全部71例、心律齐组及心律不齐组左心室功能参数差异均无统计学意义(P均>0.05)。基于CM与CS图像所获全部71例、心律齐组及心律不齐组右心室舒张末期容积指数(EDVI)差异均无统计学意义(P均>0.05),而射血分数(EF)、收缩末期容积指数(ESVI)及每搏输出量指数(SVI)差异均有统计学意义(P均<0.05)。于CM与CS图像所测双心室功能CMR参数的一致性均良好,且均呈正相关(P均<0.05)。结论利用CS序列可在提高图像质量的同时准确评估CHD患者双心室功能并显著缩短扫描时间。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.

关 键 词：心脏病 心室功能 磁共振成像 电影 前瞻性研究 

分 类 号：R825.4[医药卫生—临床医学] R445.2