...边的血流分布,测单发结节性甲状腺肿的声像日及彩色多普勒血流显保(CDFI)量其收缩期最大流速(Vmax),舒张用最低流速(Vmin),阻进行分析,旨在探讨超声对两种疾病的鉴别诊
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...应用彩色多普勒血流参数对比分析收缩期峰值流速(peak systolic velocity,PSV)与舒张期末血流最低流速(end diastolic velocity,EDV)、阻力指数(resistance index,RI)。异位妊娠均由手术病理证实,宫内妊娠均作人流术。
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...用彩色多普勒血流参数对比分析收缩期峰值流速(peak systolic velocity,PSV)与舒张期末血流最低流速(end diastolic velocity,EDV)、阻力指数(resistance index,RI).异位妊娠均由手术病理证实,宫内妊娠均作人流术.
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多普勒最低流速分辨力 doppler minimum flow-velocity resolution
舒张期末血流最低流速 end diastolic velocity ; EDV
舒张期最低流速 vd min
最低空气流速 minimum maintained velocity
方法对190例正常人,运用灰阶、彩色多普勒及高频超声检查LGA内径、最高流速、最低流速、平均流速、阻力指数和血流量。
Methods Total 190 normal subjects, 97 males and 93 females, were examined by gray scale, color Doppler and high frequency ultrasound to detect LGA.
基于换热器总费用最低的原则,在初定换热器结构形式后,提供了一种计算最佳流速,进而优化换热器设计的方法。
This paper provides a method to evaluate the economic flow velocity and to achieve the optimal design of heat exchanger, when the configuration of heat exchanger is initially decided.
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