摘要
目的探讨斑点追踪显像(speckle tracking imaging,STI)评价原发性高血压(EH)患者早期左心室旋转和扭转运动改变的价值。方法对35例左心房、左心室正常构型的EH患者(高血压组)和35例健康者(对照组),经胸采集左心室短轴心尖水平和心底水平的二维图像,计算心底水平旋转角度峰值(MV-Prot)、心尖水平旋转角度峰值(AP-Prot)、扭转角度峰值(Ptw)。结果两组受检者心尖部旋转角度均显著大于心底部旋转角度,差异均有统计学意义(P<0.01);但两组达峰时间比较,差异无统计学意义(P>0.05);高血压组患者心尖部旋转角度显著大于对照组,差异有统计学意义(P<0.05)。结论 EH患者早期左室整体心肌扭转运动主要表现为逆时针方向扭转,扭转运动增强。
Objective To observe the value of speckle tracking imaging （STI） in assessing early changes of left ventricular rotation and twist in patients with essential hypertension （EH） . Methods 35 EH patients with normal left atrial and left ventricular and 35 healthy controls were involved into the study. 2 - D images were acquired from the mitral valve and apex of the left ventricular. Peak rotation on basal plane （MV -Prot）, apical plane （AP- Prot） and peak twist （Ptw） were measured. Results In the two groups, AP ＇ Prot were significantly greater than MV - Prot （P 〈 0. 01 ）, but the peak time between the two groups was not significantly different （P 〉 0. 05 ） . AP - Prot in EH group was significantly greater than that in control group （P 〈 0. 05） . Conclusion The motion character of early left ventricular myocardium of EH is mainly counter - clockwise twisting, and Ptw is increased.
出处
《中国全科医学》
CAS
CSCD
北大核心
2011年第36期4231-4233,共3页
Chinese General Practice
关键词
超声心动描记术
高血压
左心室
旋转
扭转
斑点追踪显像
Echocardiography
Hypertension
Left ventricular
Rotation
Twist
Speckle tracking imaging
