三维超声斑点追踪成像技术评价原发性高血压患者左室扭转和扭矩

发布时间：2019-01-05 11:57

【摘要】：目的利用三维超声斑点追踪成像技术评估左室射血分数正常的原发性高血压患者左室扭转运动及扭矩。方法选取左室射血分数正常的原发性高血压患者及正常对照组各30例,获取三维全容积图像并测量两组的左室整体纵向应变(GLS)、径向应变(GRS)、圆周应变(GCS)、左室扭转角度峰值(Ptw)、扭矩(Torsion)等。统计学方法应用独立样本t检验及Person相关分析。结果与正常对照组相比,高血压组GLS(-13.91±3.42)减低,Ptw(15.09±2.39)及Torsion(2.94±0.53)增高,差异有统计学意义(P0.05)。GRS及GCS两组间差异无统计学差异。Ptw、Torsion与左室射血分数(LVEF)均存在正相关,相关系数分别为0.501、0.696。结论高血压患者在左室射血分数正常的情况下依然存在左室心肌功能的改变,三维斑点追踪技术(3D-STI)可以有效的评价高血压患者左室扭转和扭矩,为临床治疗与疗效评价提供了依据。
[Abstract]:Objective to evaluate left ventricular torsional motion and torque in patients with essential hypertension with normal left ventricular ejection fraction (LVEF) by three dimensional ultrasonic speckle tracing imaging. Methods 30 patients with essential hypertension with normal left ventricular ejection fraction (LVEF) and 30 normal controls were selected to obtain 3D full-volume images and measure the global longitudinal strain (GLS), radial strain (GRS), circumferential strain (GCS), of left ventricle in both groups. Left ventricular torsion angle peak (Ptw), torque (Torsion) et al. The independent sample t test and Person correlation analysis were used in the statistical method. Results compared with the control group, GLS (-13.91 卤3.42) decreased, Ptw (15.09 卤2.39 and Torsion increased (2.94 卤0.53) in hypertension group. There was no significant difference between the two groups (P0.05). GRS and GCS). There was a positive correlation between Ptw,Torsion and left ventricular ejection fraction (LVEF), the correlation coefficient was 0.501 卤0.696. Conclusion left ventricular myocardial function changes in hypertensive patients with normal left ventricular ejection fraction (LVEF). Three-dimensional speckle tracing (3D-STI) can effectively evaluate left ventricular torsion and torque in hypertensive patients. It provides the basis for clinical treatment and evaluation of curative effect.
【作者单位】：首都医科大学附属北京朝阳医院心脏超声科;
【基金】：国家自然科学基金青年项目(No.81401420) 首都卫生发展科研专项(No.2014-2-1061) 北京市第四批卫生系统“215”高层次人才学科骨干(No.2014-3-027)
【分类号】：R544.11;R445.1

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