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中华医学超声杂志(电子版) ›› 2015, Vol. 12 ›› Issue (08) : 587 -589. doi: 10.3877/cma.j.issn.1672-6448.2015.08.002

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脉冲多普勒采集技术及注意事项
温朝阳1,()   
  1. 1. 100048 北京,解放军总医院第一附属医院超声科
  • 收稿日期:2015-07-06 出版日期:2015-08-01
  • 通信作者: 温朝阳

Pulsed Dopple sampling techniques and considerations

Chaoyang Wen1()   

  • Received:2015-07-06 Published:2015-08-01
  • Corresponding author: Chaoyang Wen
引用本文:

温朝阳. 脉冲多普勒采集技术及注意事项[J]. 中华医学超声杂志(电子版), 2015, 12(08): 587-589.

Chaoyang Wen. Pulsed Dopple sampling techniques and considerations[J]. Chinese Journal of Medical Ultrasound (Electronic Edition), 2015, 12(08): 587-589.

图3,4 取样容积大小对正常颈总动脉多普勒频谱的影响。图3取样容积长1.5 mm,频谱频带较窄(红色箭头所示),频窗较宽(黄色箭头所示);图4取样容积3.5 mm,频谱的频带增宽(红色箭头所示),频窗缩小(黄色箭头所示)
图5 多普勒角度与此角度时每误差1°所造成的流速误差的关系
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