动态心电图有哪些临床应用?

作者: rantiku 人气: - 评论: 0
问题 动态心电图有哪些临床应用?
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解析 声源与声靶做相对运动时,造成反射频率不同于发射频率的现象,称多普勒效应。多普勒超声检查包括彩色多普勒血流显像(CDFI,俗称彩超)和频谱多普勒。频谱多普勒又分为脉冲波多普勒(定位准确,但可测的最大血流速度受限)与连续波多普勒(无定位作用,但可测的最大血流速度不受限)。

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