目的探讨体外模拟心脏运动对多普勒血流流速曲线速度时间积分(VTI)测定的影响。
Objective To investigate the influence of simulated heart motion on the Doppler spectrum velocity - time integral (VTI) of simulated blood flow measurements through an in vitro model.
本研究还表明高压氧进出舱前后脑血流速度的加快与血流流变学无明显关系，而是由于血管收缩、血管阻力增加所致。
This research also indicated that quickened blood flow velocity had no relation to blood rheology, it was due to vascular contraction and increased resistance.
本研究还表明高压氧进出舱前后脑血流速度的加快与血流流变学无明显关系，而是由于血管收缩、血管阻力增加所致。
This research also indicated that quickened blood flow velocity had no relation to blood rheology, it was due to vascular contraction and increased resistance.
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