心脏磁共振预测特发性肺动脉高压患者右心室收缩压的可行性研究

发布时间：2018-02-08 19:07

本文关键词： 心脏磁共振肺动脉高压曲率比右心室收缩压　出处：《临床放射学杂志》2017年03期 　论文类型：期刊论文

【摘要】：目的评价使用CAD画图软件对心脏磁共振图像进行测量并计算室间隔和左心室游离壁的曲率比来预测特发性肺动脉高压患者右心室收缩压的准确性和可重复性。方法由两名医师利用第三方CAD画图软件测量、计算20例确诊为特发性肺动脉高压患者心脏磁共振收缩末期图像室间隔与左心室游离壁的曲率比。BlandAltman分析评估室间隔与左心室游离壁曲率比测量计算的可重复性。将CAD软件测量、计算的室间隔与左心室游离壁曲率比和右心导管检查测量、计算的室间隔与左心室游离壁跨壁压力差比进行线性回归分析得到回归方程,通过此方程计算出右心室收缩压。Bland-Altman分析评估计算得到的和右心导管测得的两组右心室收缩压的一致性。结果室间隔与左心室游离壁曲率比和室间隔与左心室游离壁跨壁压力差比呈显著线性相关(r=0.93)。经室间隔与左心室游离壁的曲率比计算得到的和右心导管测得的两组右心室收缩压一致性较好[平均差异(7.8±12.1)mm Hg]。结论使用CAD画图软件测量、计算心脏磁共振图像室间隔与左心室游离壁的曲率比简便、快速、可重复性好,测量得出的室间隔与左心室游离壁的曲率比可以较准确地预测特发性肺动脉高压患者的右心室收缩压。
[Abstract]:Objective to evaluate the accuracy and reproducibility of the right ventricular systolic pressure (RVSBP) prediction in patients with idiopathic pulmonary hypertension by using CAD software to measure cardiac magnetic resonance images and calculate the curvature ratio of ventricular septum and left ventricular free wall. The method was measured by two physicians using third-party CAD drawing software, To calculate the curvature ratio of ventricular septum to left ventricular free wall in 20 patients diagnosed as idiopathic pulmonary hypertension. Bland Altman analysis was used to evaluate the repeatability of calculating the curvature ratio of ventricular septum to left ventricular free wall. CAD software was used to measure the ratio of ventricular septum to left ventricular free wall curvature. The calculated ratio of free wall curvature between the ventricular septum and the left ventricle and the right ventricular catheterization were measured. The regression equation was obtained by linear regression analysis of the calculated ratio of pressure difference between the ventricular septum and the left ventricular free wall. The right ventricular systolic pressure calculated by Bland-Altman analysis and the right ventricular systolic pressure measured by right ventricular catheterization were consistent. Results the ratio of curvature of septal to left ventricular free wall and the ratio of ventricular septal to left ventricular free were obtained. There was a significant linear correlation between the wall pressure difference ratio across the wall and the left ventricular free wall ratio. The right ventricular systolic pressure in the two groups calculated by the curvature ratio between the ventricular septum and the left ventricular free wall and measured by the right ventricular catheterization was in good agreement [mean difference was 7.8 卤12.1 mm Hg]. Conclusion the right ventricular systolic pressure was measured by CAD software. The curvature ratio of ventricular septum to left ventricular free wall in cardiac magnetic resonance imaging is simple, rapid and reproducible. The measured curvature ratio of ventricular septum to left ventricular free wall can accurately predict the right ventricular systolic pressure in patients with idiopathic pulmonary hypertension.
【作者单位】：首都医科大学附属北京世纪坛医院磁共振室;首都医科大学附属北京世纪坛医院干部医疗科;
【基金】：北京市科委首都临床特色应用研究基金资助项目(编号:Z141107002514070)
【分类号】：R544.1;R445.2

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