方法30例健康志愿者。获取标准心尖两腔、长轴、四腔观，应用解剖M-型超声技术定量测量心肌各节段的运动幅度。

Methods Standard apical two-chamber, four-chamber and long-axis views of 30 healthy volunteers were acquired and the wall motion amplitudes of each segment were measured.

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方法30例健康志愿者。获取标准心尖两腔、长轴、四腔观，应用解剖M-型超声技术定量测量心肌各节段的运动幅度。

Methods Standard apical two-chamber, four-chamber and long-axis views of 30 healthy volunteers were acquired and the wall motion amplitudes of each segment were measured.

youdao