Objective To evaluate left ventricular systolic function in patients with dual-chamber pacing by ultrasonic speckle tracking imaging.
目的探讨超声斑点跟踪显像技术评价房室顺序起搏患者左心室收缩功能的价值。
Speckle tracking imaging may represent a new, powerful method for quantifying ventricular torsion and be in- dependent of global cardiac function and angle dependency.
超声斑点追踪技术不受心脏整体运动影响且无角度依赖性，是评价心肌扭转运动的新的量化指标。
Objective: to observe the value of speckle tracking imaging (STI) in assessing early changes in left ventricular diastolic and systolic function in patients with essential hypertension (EH).
目的：探讨斑点追踪显像(STI)技术评价原发性高血压(EH)患者早期左心室舒张及收缩功能改变的价值。
Objective To observe the clinical value of evaluation on the function of the left atrial with two-dimensional speckle tracking imaging (2d-sti) in patients with coronary artery diseases (CAD).
目的探讨超声二维斑点追踪显像(2d -STI)技术评价冠心病患者左心房功能的临床应用价值。
The original centroid tracking algorithm is no longer suitable because of the speckle noise in ladar image.
然而常规形心跟踪算法因激光雷达图像受到散斑噪声影响而变得不适合。
The original centroid tracking algorithm is no longer suitable because of the speckle noise in ladar image.
然而常规形心跟踪算法因激光雷达图像受到散斑噪声影响而变得不适合。
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