血流

The flow convergence parameters were quantitatively and semiquantitatively compared with the regurgitant volumes、fractions and grades gained by pulsed Doppler and the modified Simpson role method.

将各射流及血流会聚参数与脉冲多普勒及改良Simpson氏法所求的返流量、返流分数分别作定量及半定量关系分析比较。

Flow convergence regurgitant volumes and fractions were calculated by using the hemispherical flow convergence equation with 81, 71, 58, 46, 37 and 29cm/sec aliasing limit velocities, and the effective regurgitant areas were calculated with 58, 46 and 37cm/sec aliasing velocities.

按半球血流会聚公式分别计算混叠极限为81、71、58、46、37和29cm/sec时返流量、返流分数(返流量/二尖瓣口流入量)及混叠极限为58、46和37cm/sec时有效返流口面积(返流量/返流速度时间积分)。

Background— The Doppler Substudy of the randomized, double-blind, placebo-controlled Reinfusion of Enriched Progenitor Cells and Infarct Remodeling in Acute Myocardial Infarction trial aimed to inestigate the effects of intracoronary infusion of bone marrow–deried progenitor cells on coronary blood flow regulation in patients with reperfused acute myocardial infarction.

背景：应用多普勒，采用随机、双盲、安慰剂对照的方法研究输注浓缩祖细胞及梗死区结构的重塑，以明确经冠状动脉输注骨髓祖细胞对急性心梗患者冠状动脉血流恢复的影响。

"Antibiotics can be effective, but inadequate therapy may leave spirochetes alive in the brain, and they may reinvade the bloodstream."

青霉素及其它抗生素治疗有效。若用量不足则停药后每可再发，可能螺旋体潜匿脑中，药物浓度在该处不足以杀灭之，停药后即侵入血流，引致再发。

Results 45 infarct related arteries among 40 cases acquired coronary artery repatency with TIMI 3 degree flow, a success rate of 95.2%(40/42), the residual stenosis in repatency coronary arteries was from 0 to 20%. The clinic symptom of the 5 cases with left ventricular dysfunction and 2 of the 3 cases with cardiogenic shock were obviously improved, 1 case(2.5%) with cardiogenic shock was dead in hospital.

结果 40例患者中的45支梗塞相关血管获得再通，成功率达95.2%(40/42)，均达到TIMI-3级血流灌注，再通血管残余狭窄0%～20%。5例合并左心功能不全(Killip分级Ⅱ～Ⅲ级)及3例合并心源性休克患者术后症状明显改善，住院期间1例死亡(病死率2.5%)。

Objective To investigate the ability of myocardial fractional flow resever in predicting the incidence of major cardiac events (death, myocardial infarction, revascularization arid recurrance of angina) 3 months after stent inplantation and also try to find out the cutoff point.

目的 研究冠状动脉内支架术后即刻心肌血流储备分数(myocardial fractional flow resever， FFRmyo)对於术后3个月心脏事件的预测价值，并建立目标FFRmyo值。

Purpose To study of the retrobulbar hemodynamic change of the glaucoma.

目的 了解青光眼球后动脉血流动力学变化表现。

Hemodynamics changes of retrobulbar vessels in patients with diabetic retinopathy can be detected by CDFI, and it is helpful to evaluate the clinical diabetic retinopathy.

高频彩超可动态检测眼球后血流状态，对临床上评价糖尿病视网膜病变的程度有重要的参考价值。

Eighty six cases were confirmed by operation.The overall diagnostic coincidence rate was 98.98%.Conclusions:TV-CDE is worthy of diagnosing salpingian pregnancy.

TV-CDE是目前诊断早期异位妊娠有价值的检测手段，其血流频谱特征和&输卵管环&具有特殊诊断及鉴别诊断意义，尤其是对异位妊娠早期诊断具有特异性。

Methods:TV-CDE were performed in the diagnosis of salpingian ectopic pregnancy.Imaging and blood flow spectrum were analyzed,Vs,Vd,RI and PI were measured.Results:TV-CDE could show the signals of blood flow very well.

应用TV-CDE技术对98例临床疑诊异位妊娠患者的附件区包块行阴道二维超声图像、血流显像及频谱特征进行对照分析，对Vs、Vd、RI、PI值进行测量，分析了TV-CDE对异位妊娠定性的可行性。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。