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- cerebral flow velocity 倾斜试验
- Objective It is to investigate the variation of cerebral artery flow velocity (FV) after severe head injury. 目的研究重型脑外伤后脑血管血流速的变化及对预后的影响。
- Flow velocity should not exceed 5 ft./sec. 流速不能超过5英尺/秒。
- Non-vasovagal response was defined gradual onset of substantial change of heart rate, blood pressure, or cerebral blood flow velocity. 单独长时间倾斜组测验的结果为：阴性反应26人(70%25)，非血管迷走反应11人(30%25)，血管迷走反应0人；
- Objective To investigate the effect of sodium nitroprusside(SNP) on cerebral blood flow velocity (CBFV)and cerebral vessel resistance. 目的研究硝普钠在冠状动脉搭桥手术中对脑血流速度的影响及在提高大脑供血供氧方面的意义。
- Cerebral blood flow velocity of arteriae cerebri media (MCA) and arteriae cenebri anterior (ACA) increased by 15.4% and 11.4% respectively compared with those before treatment (P<0.05). 患侧大脑中动脉(MCA)及大脑前动脉(ACA)的血流速度比治疗前分别增加15.;4%25及11
- Stellate ganglion block (SGB) will produce different effects on cerebral circulation,including cerebral blood flow,cerebral vascular tone and cerebral blood flow velocity and so on. 星状神经节阻滞(SGB)可使脑循环产生不同的效应,包括脑血流量、脑血管张力及脑血流速度等。
- Changes in cerebral blood flow, including systolic peak flow velocity(Vs)、enddiastolic peak flow volocity (Vd) and mean peak flow velocity (Vm) of middle cerebral artery, were analysed. 结果:咀嚼运动后大脑中动脉收缩期峰流速、舒张期末峰流速及平均峰流速较咀嚼运动前均有明显增加。
- Objective To investigate the effect of lower body negative pressure (LBNP) in upright seated position on cerebral blood flow velocity,heart rate(HR),and blood oxygen saturation (SaO 2) in human. 目的探讨坐位下体负压对人体大脑中动脉血流速度、心率和血氧饱和度的影响。
- Cerebral blood flow velocity in the right middle cerebral artery was measured by transcranial Doppler sonography before HDT (supine), on days 1, 3 and 4 of HDT and on day 2 post HDT. 卧床前和卧床4d结束时在倾斜床上进行2次立位耐力检查,卧床前(卧位)、卧床第1、3、4天及起床后第2天用经颅多普勒超声仪测量右侧大脑中动脉血流速度。
- High flow velocity was found in some patients accompany stenosis of the siphon. 合并虹吸段狭窄时血流速度增高频谱紊乱。
- The metal flow velocity can become uniformity by optimizing the die structure. 通过对模腔结构的优化设计，使金属流动趋于均匀。
- Whole brain and regional cerebral flow responses to memory processing and acutely administered acetazolamide, a vasodilator, were assessed pretreatment and posttreatment. 在此，我们通过实验来证实高血压的药物治疗是否使局部脑血流量反应标准化；
- Strait to the South Central there is a flow velocity of 10 cm / sec around. 海峡中部存在着南向流动，流速为10厘米/秒左右。
- Based on the Fick principle and lots of experiments mathematical models were deviaed for quantifying cerebral flow (DBF) and regional cerebral blood flow (rCBF) by SPECT and perfusion agent 99m Tc-ECD. 在大量实验的基础上,根据Fick原理,设计了适合用SPECT和脑灌注显像剂~99mTc-ECD定量测定全脑血流量(CBF)和局部脑血流量(rCBF)的两种数学模型。
- Peak diastolic flow velocity and CVR before and during infusion of dipridamole were calculated. 测量潘生丁药物负荷试验前后舒张期峰值血流速度及CVR值。
- The impaired microvasculature may profoundly affect the coronary flow velocity pattern in the IRA. 结论:微血管床的损害可以影响心外膜冠脉血流动力学。
- High resistance waveform with increased flow velocity was seen in contralateral VA. 病变对侧va呈收缩期血流速度增快的高阻力频谱。
- Exhaust fan should be sized to provide enough suction and flow velocity at each of the exhaust point in the laboratory. 排气风机的大小要满足足够的风量和表面风速。
- When flow velocity decreases below the corresponding incipient motion condition, no sediment movement occurs. 当水流速度小于相应的起始运动时，将无泥沙运动。
