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肺阻抗
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  pulmonary impedance
     The characteristics of △Z waves of pulmonary impedance plethysmography (PIP) is analysed on 9 plients with pulmonaryhypertension by using Fourier series expansion and 11 patients with normal pulmonary artery pressurs as control.
     本文应用傅里叶频谱分析,报道了9例肺动脉高压患者的肺阻抗血流图△Z波的频谱特征,并与11例肺动脉压正常患者进行对照。
短句来源
     THE CORRELATIVE RELATIONSHIP BETWEEN THE PULMONARY IMPEDANCE VOLUME CURVE AND THE MASIMAL EXPIRATORY FLOW VOLUME CURVE
     肺阻抗容量曲线与最大呼气流速容量曲线的关系
短句来源
     EVALUATION OF THREE MULTIPLE REGRESSION EQUATIONS OF RHEOGRAM OF PULMONARY IMPEDANCE FOR PULMONARY ARTERY PRESSURE MEASUREMENT
     对肺阻抗血流图测定肺动脉压的三种多元回归方程的评价
短句来源
     The wave amplitude of pulmonary impedance rheogram and right heart index (HI) also increased significantly (P<0. 01 ), while pulmonary arterial pressure (PPA) and pulmonary vascular resistance (PVR) dropped markedly (P< 0. 01 ).
     同时肺阻抗血流图之波幅、右心肌指数明显增高(P<0.01),而肺动脉压及肺外周阻力则明显下降(P<0.01)。
短句来源
     The wave amplitude of pulmonary impedance rheogram and right heart index (HI) increased significantly (P<0.01), which pulmonary arterial pressure (PPA) and pulmonary vascular resistance (PVR) dropped markedly (P<0.01).
     同时肺阻抗血流图之波幅、右心肌指数明显上升(P<0. 01) ,而肺动脉压及外周阻力则明显下降(P<0. 01) ,提示肺微循环障碍得到明显改善。
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  “肺阻抗”译为未确定词的双语例句
     At the same time, the baseline cerebral blood flow increased from (34. 9±3.3)m to (39.9±2.7) m (P<0. 05), while the pulmonary blood flow was unchanged.
     同时,基础脑阻抗血流图波幅由(34.9±3.3)m增为(39.9±2.7)m(P<0.05),而基础肺阻抗血流日波幅不变。
短句来源
     The percentage changeof pulmonary vascular resistance (△PVR%) and the amplitude of the systolic wave inimpedance pneumorheogram (△H%) were used to estimate the strength of HPV. It was observed that immediately after acute cigarette smoking, HPV in rats was in-creased (△PVR% from 55. 0±15. 6% to 102. 3±12. 4%), which was mainly mediated byleukotrienes (LTs);
     以肺血管阻力变化百分率(△PVR%)或肺阻抗血流图收缩波波幅变化率(△H%)作为缺氧性肺血管收缩反应强度的指标。 实验结果发现,急性吸烟使大鼠的HPV增强(△PVR%从55.0±15.6%增至102.3±12.4%),主要由白三烯介导;
短句来源
     The feasibility of detecting pulmonary arterial mean pressure(PAMP)with im-pedance rheopneumogram was discussed. There was significant correlation betweenPAMP measured by Swan-Ganz catheter and α,B-Y,Q-B/Y as well as Hs,Q-BI,B-YI that are the items of impedance rheopneumogram(P<0.01,P<0.05)respectivelyon 30 patients with COPD and cor pulmonale.
     本文应用Swan-Ganz导管实测30例COPD、肺心病人的PAMP与肺阻抗血流图指标a、B-Y、Q-B/B-Y 相关有非常明著性(P<0.01),PAMP 与 Hs、Q-BI、B-YI 的相关关系也有显著性(P<0.05)。
短句来源
     On pretreatment and post -treatment 7days,Q -B? B -Y? Q -B /B -Y?
     采用肺阻抗测定仪于治疗前及治疗后第7d分别观测Q-B间期、B-Y间期、(Q-B)/(B-Y)、Q-BI、B-YI、α、HS、HR、mPAP等指标。
短句来源
     When its synchronously measured, the parameters of impedance pneumogram are K·Zor, K·△ Zr, K·dZr/dt.
     同步测量时,得到的肺阻抗血流图的参数是:K·Zor,K·△Zr,K·dZr/dt. (C是受试者剑突处的胸围,Se是肺阻抗电极的面积,d是前后肺阻抗电极之间的水平距离,h是前后肺阻抗电极的垂直距离)
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  相似匹配句对
     Designation and Functional Evaluation of Pulmonary Impedance Analyser Model FZ-1
     阻抗分析仪的设计和性能评价
短句来源
     A dual-channel multi-port impedance rheograph
     心动和阻抗血流图同步记录仪
短句来源
     THE BENIGN TUMORS OF LUNG
     良性肿瘤
短句来源
     hyperedria in lung;
     淤血;
短句来源
     Impedance Matching on Transmission Line
     传输线的阻抗控制
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  pulmonary impedance
LY163443, given by oral administration to guinea pigs, blocked LTD4-induced increases in total pulmonary impedance (TPI).
      
CNEP is an easily applicable, noninvasive tool to reduce pulmonary impedance, and is specifically useful to improve hemodynamics in patients after a Fontan-type operation.
      
Increases in total pulmonary impedance caused by i.v.
      
to sensitized guinea pigs increased total pulmonary impedance which was markedly decreased after oral administration of 30 or 100 μg/kg LY188695.
      
Linear-lumped-parameter modeling of pulmonary impedance in monkeys
      
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With the aid of right heart micro-catheterization technique ECG and pulmonary artery pressure curves were recorded synchronously in 100 cases of COPD patients and 15 normal subjects. RPEP/RVET ratio was measured from these tracings.These data demonstrated a good correlation between PAP and RPEP/ RVET ratio (correlation coefficient r = 0.78).Accor-ding to these data, we suggest:(1)In COPD patients, RPEP/RVET>0.45 can be used as a diagnostic criterion of cor pulmonale; (2) RPEP/RVET> 0.42 may indicate impairment...

With the aid of right heart micro-catheterization technique ECG and pulmonary artery pressure curves were recorded synchronously in 100 cases of COPD patients and 15 normal subjects. RPEP/RVET ratio was measured from these tracings.These data demonstrated a good correlation between PAP and RPEP/ RVET ratio (correlation coefficient r = 0.78).Accor-ding to these data, we suggest:(1)In COPD patients, RPEP/RVET>0.45 can be used as a diagnostic criterion of cor pulmonale; (2) RPEP/RVET> 0.42 may indicate impairment of the right ventricular function; (3) In COPD patients, if RPEP/RVET> 0.42 but<0.45, cor pulmonale may be suspected.In order to correlate the impedance pneumogram (IPG) and its first derivation with hemodynamic events within the right heart,a polygraph machine was used in 32 cases of COPD and 8 cases of other heart diseases.In addition, the right ventricle apexcar-diogram had simultaneously been recorded in 4 patients. From these findings, we conclude: (1) The tracing of IPG and its first derivation should be divided into four phases: (a) Auricular phase (a or A wave); (b)lsovolemic contraction phase of right ventricle (IC wave);(c)Ejection phase of right ventricle-(S or C wave); (d) Diastolic phase, (D or O wave).-(2) Measuring of RPEP and RVET can be achieved from the tracings of the first derivation of IR-G by a new method presented here. The RPEP/RVET ratio thus measured coincided exactly with that measured directly with the invasive method. It may be used as a noninvasive method for detecting right ventricular dysfunction and cor pulmonale in COPD patients. (3) The C-P2 interval may probably be valuable in the diagnosis of pulmonary hypertension.

本文对100例COPD病人与15例正常人经微导管同步记录心电图及肺动脉压力曲线,测量RPEP/RVET比值,通过肺动脉平均压与RPEP/RVET比值对比,提出了RPEP/RVET比值>0.42为右心室受损,此比值在0.42~0.45为可疑肺心病,>0.45为肺心病的诊断标准。通过同步记录EKG、PCG、右心各腔室压力曲线、肺阻抗图及其微分图及右心室心尖搏动图,提出肺阻抗图及其微分图应分为4个时相,即房波、右心室等容收缩波、右心室射血波及舒张波。提出了在肺阻抗微分图中右心室射血点及射血终止点的定点,及测量RPEP/RVET比值的方法,用以评定右心室功能及诊断慢性肺心病。并认为C波峰-P_2音间期可能对肺动脉高压有诊断价值。

A new method for determinating the compliance of pulmonary arteries was established. The Compliance of pulmonary arteries (Cpa) can be calculated by using the height (H ohm) of the systolic dZ wave in Impedance-Pulmonary - Rheogramm (IPR) and the pulse amplitude (dP mmHg) of pulmonary arterial pressure:Cpa =H/dP×124.37+2.56(ml/mmHg)The Cpa was decreased by raising legs or excercise load, for the dp was augmented by the increased stroke volumen, and H remained unchanged; In patients with pulmonary hypertension...

A new method for determinating the compliance of pulmonary arteries was established. The Compliance of pulmonary arteries (Cpa) can be calculated by using the height (H ohm) of the systolic dZ wave in Impedance-Pulmonary - Rheogramm (IPR) and the pulse amplitude (dP mmHg) of pulmonary arterial pressure:Cpa =H/dP×124.37+2.56(ml/mmHg)The Cpa was decreased by raising legs or excercise load, for the dp was augmented by the increased stroke volumen, and H remained unchanged; In patients with pulmonary hypertension the Cpa was also decreased, but its mechanism is different. Since their pulmonary vascular resistance and pulmonary arterial pressure rose, and hence the dp became higher and H lower, both of them take part in the change of Cpa.

我们建立了用肺阻抗血流图与右心导管测肺动脉压力相结合以测定肺动脉顺应性的方法。由血流图dZ曲线收缩波波幅H与肺动脉脉压dP计算肺动脉顺应性Cpa的回归方程是: Cpa=H/dP×124.37+2.56(毫升/毫米汞柱) 腿抬高或运动时H不变,dP增大,Cpa降低;肺动脉高压病人H减小,dP增大,Cpa降低。

Impedance-pulmonary-rheogram (IPR) was used to determine the responsiveness of pulmonary blood vessels to hypoxia. Two methods were established, inhalation of low concentration oxygen and breath-holding. The former was more sensitive than the latter. Experiments were carried out on 19 patients and 19 dogs. The results showed that the decrease of the amplitude (H) in IPR during inbalating 11% or 16% O2 was the outcome of the decline in compliance of pulmonary arteries caused by hy-poxic pulmonary vasoconstriction...

Impedance-pulmonary-rheogram (IPR) was used to determine the responsiveness of pulmonary blood vessels to hypoxia. Two methods were established, inhalation of low concentration oxygen and breath-holding. The former was more sensitive than the latter. Experiments were carried out on 19 patients and 19 dogs. The results showed that the decrease of the amplitude (H) in IPR during inbalating 11% or 16% O2 was the outcome of the decline in compliance of pulmonary arteries caused by hy-poxic pulmonary vasoconstriction and pulmonary hypertension.There is a linear correlation between the variation of H and that of pulmonary vascular resistance (PVR) or of pulmonary mean pressure (p PA). The regression formulae deduced from human experiments were:d PVR = 10.17-1.25 dHd FPA= 4.90-0.94 dHAccording to the degree of the decline of H during 11% O2 inhalation, the pulmonary vascular responsiveness could be divided into 3 classes-strong responder, weak responder and nonresponder.

本文介绍了两种用肺阻抗血流图测定肺血管反应性的方法,吸低浓度氧法比屏气法较灵敏可靠。吸入低浓度氧所引起肺血流图波幅的变化(dH)与肺血管阻力变化(dPVR)及肺动脉平均压变化(d)(?)_(PA))之间的关系为:dPVR=10.17-1.25dH d(?)_(PA)=4.90—0.94dH.建议按吸入10%氧气5分钟时H的变化,区分肺血管反应性为强反应、弱反应与无反应者。

 
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