Because of scar tissue at the joints, muscles and other soft tissues shorten around the joint which in time can permanently lose some of its movement.

由于关节部位存在疤痕，肌肉和关节周围的其他软组织就会变短，从而永久降低关节的活动范围。

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Objective To evaluate the clinical value of quantitative tissue velocity imaging(QTVI)in detection of regional wall movement abnormalities in patients with coronary artery disease(CAD).

目的探讨定量组织速度成像（QTVI）技术检测冠心病局部室壁运动异常的临床应用价值。

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Objective: Compared to fundamental imaging (FI), we used native tissue harmonic imaging (NTHI) to improve image quality on regional wall movement of left ventricle in coronary disease.

目的：通过与基波成像(FI)的对比，研究自然组织谐波成像(nthi)对冠心病节段运动观察的改善情况。

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However, that image must be built up quickly, otherwise movement of the tissue being illuminated will blur it.

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