平行于三尖瓣短轴位与左心室短轴位在磁共振右心室容积测量中的比较研究

发布时间：2018-01-04 04:26

本文关键词：平行于三尖瓣短轴位与左心室短轴位在磁共振右心室容积测量中的比较研究　出处：《临床放射学杂志》2016年01期 　论文类型：期刊论文

【摘要】：目的比较平行于三尖瓣短轴位与左心室短轴位定位获得的右心室容积数据,评价前者的准确性和可重复性。方法分别采用平行于三尖瓣短轴位与左心室短轴位定位方法获得30名健康志愿者的心脏连续层面磁共振电影图像,测量右心室收缩末期容积、舒张末期容积、搏出量、射血分数,并进行比较,同时比较两种方法下左心室及右心室搏出量,并评价观察者间和观察者内差异。结果左心室短轴位与平行于三尖瓣短轴位定位方法所得右心室舒张末期容积[(117.4±23.8)ml,(125.6±25.2)ml]、收缩末期容积[(60.4±14.4)ml,(66.8±15.8)ml]、右心室搏出量[(57.1±12.7)ml,(58.8±12.8)ml]、右心室射血分数[(48.7±4.9)%,(46.9±4.8)%]均具有显著的统计学差异;除射血分数外,均以后者得到的容积更大。平行于三尖瓣短轴位定位方法所得右心室搏出量与左心室短轴位所得左心室搏出量无统计学差异,97%(29/30)数值位于一致性界限内。平行于三尖瓣短轴位定位方法所得右心室容积数据较左心室短轴位定位所得右心室容积数据具有更小的观察者间和观察者内差异,其偏差标准差和一致性界限更小。结论两种定位方法计算得到的右心室容积具有显著的统计学差异,平行于三尖瓣短轴位定位方法的可重复性更好。
[Abstract]:Objective to compare the right ventricular volume data obtained parallel to tricuspid short axis and left ventricular short axis. The accuracy and reproducibility of the former were evaluated. Methods Thirty healthy volunteers were selected to obtain continuous magnetic resonance imaging (Mr) images of 30 healthy volunteers by using a method parallel to the tricuspid valve short axis and left ventricular short axis. Right ventricular end-systolic volume, end-diastolic volume, stroke volume, ejection fraction were measured and compared. Results the left ventricular end diastolic volume (RVEV) was obtained by using the left ventricular short axis position and the left ventricular short axis position method, which was parallel to the tricuspid valve short axis location method. [(117.4 卤23.8ml), 125.6 卤25.2ml / ml, end-systolic volume. [60.4 卤14.4ml / ml, 66.8 卤15.8ml / ml, right ventricular output. [Right ventricular ejection fraction (RVEF). [48.7 卤4.9%, 46.9 卤4.8%; With the exception of ejection fraction, the volume obtained by the latter was larger. There was no significant difference in the volume of right ventricular beats parallel to the tricuspid valve short axis positioning method and the left ventricular systolic volume obtained in the left ventricular short axis position. 97 / 29 / 30). The right ventricular volume data obtained by parallel to the tricuspid short axis positioning method have smaller inter-observer and intra-observer differences than those obtained from left ventricular short axis location. Conclusion the right ventricular volume calculated by the two localization methods has significant statistical difference and is more reproducible than the tricuspid valve short axis location method.
【作者单位】：华中科技大学同济医学院附属协和医院放射科;
【分类号】：R445.2;R541
【正文快照】： Comparison of Right Ventricular Volume Measurements Between ShortAxial Paralleled to the Tricuspid Valve and Left Ventricle Short AxisOrientation Using Steady-State Free Precession Magnetic Resonance Imaging右心室容积和功能参数对于可导致右心室损害的呼吸

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