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正常心脏
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  normal heart
     T-E_(max) was little changed in the normal heart (1.97 ± 0.53 kPa/ml vs 1.97 ± 0.56,P>0.05), but was significantly increased in the regional ischemic heart (1.20 ± 0.35 vs 1.41 ± t 0.32,P<0.01) during IABP.
     T-E_(max)在正常心脏进行IABP时无显著变化(1.97±0.53 vs,1.97±0.56kPa/ml,P>0.05),在缺血心脏进行IABP时显著增加(1.20±0.35 vs 1.41±0.32,P<0.01);
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     Results: (1)Microinjection of 2 pmol ET 1 into rVLM could not induce ventricular arrhythmias(VA) in normal heart.
     结果:在正常心脏,rVLM内微量注射ET1(2pmol)不引起心脏节律的紊乱;
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     The Appearance of Normal Heart on Gd-DTPA Enhanced Dynamic MRI
     正常心脏Gd-DTPA动态增强MRI的表现
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     Immunohistochemical localization of TRAIL and its receptors in the normal heart tissue
     TRAIL及其受体在正常心脏组织的免疫组织化学定位
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     RESULTS Of all patients ,endocarditis was secondary to congenital heart disease in 154 patients (78%), to normal heart in 25(12%), to rheumatic heart disease in 21(10%). Cerebral infarction occurred in 16patients (8%), there were positive findings in blood culture in 99 patients (50%), and vegetations were found in 141 patients (70%).
     结果  198例患者中 ,继发于先天性心脏病 15 4例 (78% ) ,源于正常心脏 2 3例 (12 % ) ,继发于风湿性心脏瓣膜病 2 1例 (10 % ) ,手术前发生脑梗死 16例 (8% ) ,手术前血培养阳性 99例 (5 0 % ) ,超声心动图发现心脏赘生物14 1例 (70 % ) .
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  normal cardiac
     We studied the normal cardiac wall movement in 6 normal open-chested dog using the newdeveloped echocardiographic color Doppler tissue imaging(DTI)technique.
     本文采用超声心动图彩色多普勒组织成像(DTI)新技术对6条开胸犬正常心脏运动进行研究。
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     Conclusion Under the condition of mechanical ventilation, when the lung volume was relatively constant, change in PEEP levels (0-13 cm H2O) had no obvious effects on the normal cardiac function group, but can significantly decrease right ventricular preload, PCBF and left ventricular preload. Optimal PEEP may improve the cardiac function.
     结论机械通气在相对容量恒定时,在0~13cmH2O的PEEP对正常心脏无明显影响,对衰竭心脏可明显减少右心前负荷、PCBF和左心室前负荷,设定适当PEEP可改善心功能。
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     It should be considered comprehensively for the proruption of the valve perforation in normal cardiac of juveniles and/or patient with supporting broken structure to keep high vigilant against IE.
     对于青少年正常心脏突发瓣叶穿孔及/或支持结构断裂者应综合考虑 ,高度警惕IE。
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     Drew a line from the peak pressure of the isovolumic contraction to or tangent to the left upper corner of the loop, the slope was Emax. Three sets of left heart bypass flow ie:50%, 75% and 90% of the normal cardiac output were conducted in 6 normal sheep and 5 sheep with localized ischemic areas over the anterior surface of the right ventricle respectively, each lasting for 15 minutes, and 3 sets of Emax were thus obtained.
     6条正常心脏及 5条右心室前壁缺血绵羊以心排血量的5 0 %、75 %和 90 %分别作左心转流各 15分钟 ,计算其 Emax。
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     Usually, the frequency of heartbeat can be used to discriminate different kinds of arrhythmia from a normal cardiac rhythm, but the result is not satisfying.
     ECG心率不齐是通过与正常心脏跳动频率不同来区分,但这种方法并不是理想。
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  normal hearts
     Materials and Methods; 12 cases of normal hearts were examined before and after Gd-DTPA enhancement by 0.35 ̄ 0.38T MRI set also with dynamic observation on the latter.
     材料和方法:12例正常心脏于0.35~0.38TMRI机上作Gd-DTPA增强前后MRI检查,增强后为动态观察。
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     Results In expression of actin,cTnT and Fn of myocardial a significant difference was found among patients with AMI,suspected myocardial ischemia and normal hearts,(P<0.01),and also a significant difference was found between patients with AMI and suspected myocardial ischemia (P<0.05).
     结果(1)HHF35、cTnT、Fn在急性心肌梗死组、可疑心肌缺血组与正常心脏组的表达间差别均有显著性意义(P<0.01),而急性心肌梗死组与可疑心肌缺血组之间差异亦有显著性意义(P<0.05);
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     Method: in this study, we detect the expression of CD34 ,CD133 and TGF-βin the autospised hearts of myocardiac infartion and normal hearts of 15 cases respectively, aming to analyze the homing of BMCs after infartion.
     方法:采用免疫组化SP法分别检测CD34,CD133,TGF-β在15例正常心脏,15例梗死心肌及梗死心肌周围区域的表达情况,并对它们之间的表达差异及相关性进行观察总结。 结果:1。
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     The results of normal hearts of 205 children examined by ultrasonic B are reported in this article.
     本文报告205例儿童(2~12岁)的正常心脏B型超声测值。
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     Results: GLUT1 mRNA and GLUT1 polypeptide expression was substantially increased in ischemic region from the experimental hearts when compared to normal hearts.
     结果 :与正常心脏比较 ,低血流心肌缺血后 ,缺血心肌 GL UT1m RNA和 GL UT1多肽表达明显增加 ,分别为正常心肌的 3.6倍和 1.6倍 (P<0 .0 1)。
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  “正常心脏”译为未确定词的双语例句
     Moreover, isolated hearts subjected to 20-min global no-flow ischemia were reperfused with UⅡ(1 or 10 nmol/L) for 20 min.
     对正常心脏给予0.1、1和10 nmol/L UⅡ各5 min,然后换洗5 min,对停灌缺血-再灌注心脏在再灌注期给予1或10nmol/L UⅡ。
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     Results:①57.9% of the normal adults can be induced AF by rapid atrial stimulation.
     结果 :①快速心房刺激可使 5 7.9%成人正常心脏诱发AF ;
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     Methods Improved immunohistochemical staining technique was adopted to detect the expression of the β-sarcoglycan(β-SG) in the myocardia in 25 cases of VCM, 28 cases of DCM and 17 cases of control group.
     方法对17例对照组(包括冠心病、高血压性心脏病和正常心脏等),25例VCM和28例DCM的心肌组织进行改良的β-sarcoglycan免疫组织化学染色观察,并对其阳性反应率进行χ2检验及相关分析。
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     Intravenous administration of milrinone in doses of 3-300μg/kg to anesthe-sized rabbits results in a dose-related increase in left ventricular pressure (LVP) + dP/dt max and - dP/dt max, a relatively small increase in heart rate (HR) at higher doses and no significant change in arterial blood pressure (AP) .
     静脉注射米利酮(3~300μg/kg),能使麻醉家兔正常心脏左室内压最大上升和下降速率(LV士dP/dt max)呈剂量依赖性增加,心率(HR)仅在高剂量时略有增加,而全身动脉压(AP)无明显变化。
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     To study the dynamic changes of myocardial signal intensities in normal subjects by Gd -DTPA enhanced MRI.
     目的:探讨正常心脏心肌在Gd-DTPA动态MRI上的信号表现及动态变化规律。
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  normal heart
Results in children with a structurally normal heart are comparable to those achieved in adults.
      
We analysed ECGs of 64 infants with CHD and found normal heart rates on average in four groups split up according to their NE.
      
The pathways of myofibrillar assembly and degradation were studied in normal heart and during developing hypertrophy by two independent methods: amino acid incorporation kinetics and the double isotope technique.
      
A positive cooperativity (n=1.6) was found for the activation curve of the ATPase from normal heart.
      
Myocardial lactate dehydrogenase isoenzyme distribution in the normal heart
      
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  normal cardiac
Heart failure in sepsis is frequently masked by a seemingly normal cardiac output.
      
Ketone bodies maintain normal cardiac function and myocardial high energy phosphates during insulin-induced hypoglycemia in vivo
      
This information indicates that availability of glucose to the fetus is important for normal cardiac metabolism and development.
      
This increased fatty acid contribution in the oxidation metabolism could be responsible for some oxygen wasting and could contribute to decrease the energy available for the contraction despite the normal cardiac oxygen uptake.
      
In normal cardiac myocytes, La3+ was localized exclusively in the extracellular space.
      
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  normal hearts
In normal hearts flow increased homogeneously over the entire left ventricle.
      
In normal hearts atrial pacing produced a slight but significant increase in coronary resistance in the subendocardial layers of the left ventricle.
      
In growing human hearts the biochemically estimatedtotal amount of DNA increases from 20 mg to 50-100 mg, and in hypertrophied hearts the increase may be threefold compared with normal hearts.
      
Theamount of myoglobin in hearts above 500 g weight is more than 100% compared with normal hearts and is correlated with the width of the heart muscle fibres.
      
Peak CPK values for normal hearts were reached at 10 minutes following reperfusion, were significantly lower from the myopathic hearts and returned to near control levels at the end of the 30 minute reperfusion period.
      
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Langendorff's hearts of 59 guinea pigs and 16 cats were used to study the actions of phenelzine sulphate (Nardil) on coronary flow, heart rate, and contractile force, together with its mechanism in relation to catecholamines and 5-HT. 1. For guinea pigs, phenelzine in concentration of 10~(-6) M exerted a significant inhibition on beating hearts with a concomitant increase of coronary flow (+36%), which was remarkably more than that on fibrillating hearts (+8%). It was thus demonstrated that about 3/4 of the...

Langendorff's hearts of 59 guinea pigs and 16 cats were used to study the actions of phenelzine sulphate (Nardil) on coronary flow, heart rate, and contractile force, together with its mechanism in relation to catecholamines and 5-HT. 1. For guinea pigs, phenelzine in concentration of 10~(-6) M exerted a significant inhibition on beating hearts with a concomitant increase of coronary flow (+36%), which was remarkably more than that on fibrillating hearts (+8%). It was thus demonstrated that about 3/4 of the augmentation of coronary flow on beating hearts were attributed to a diminution of the extra-coronary resistance from a reduction of the contractile force, whilst the rest (1/4) was due to a direct coronary dilatation. For cats, phenelzine (10~(-6) M) caused no significant alterations in heart rate and contractile force, and, consequently, the increments of coronary flow in beating and fibrillating hearts (+8% and +9% respectively) approximated to each other. 2. The decrease of coronary flow (-23%) induced by pituitrin (0.5 unit/1) on beating hearts of guinea pigs was converted to an increase (+18%) by perfusion of phenelzine (10~(-6) M). If the guinea pigs were pretreated with phenelzine 15mg/kg/day for 6 days, the pituitrin became practically ineffective. 3. The lack of significant difference between normal hearts and reserpinized hearts in response to phenelzine, as well as the absence of sympathomimetic action of phenelzine on the hearts, indicated that the cardiac effects of phenelzine in guinea pigs could hardly be ascribed to the release of catecholamines. 4. The hearts of reserpinized guinea pigs were more sensitive to 5-HT than those of normal ones. The hearts after perfusion of phenelzine or the hearts of phenelzinized guinea pigs, however, showed no marked augmentation in reactivity toward 5-HT. These results suggested that cardiovascular effects of phenelzine are probably not mediated by accumulation of 5-HT.

用Langendorff离体心脏灌流法研究了苯乙阱对59只豚鼠和16只猫的冠脉流量、心搏率和心縮力的作用,并探討它与儿茶酚胺和5-羟基色胺(5-HT)的关系.(1)苯乙肼10~(-6)M对豚鼠搏动心脏有明显抑制,同时增加冠脉流量(+36%),其增加程度比在顫动心脏(+8%)更为明显,說明对搏动心脏增加冠脉流量的3/4是由于抑制心縮力而降低冠脉外阻力,另1/4是直接扩张冠脉的結果.对离体猫心的心搏率和心縮力无明显影响,因此在搏动和顫动心脏增加冠脉流量的程度近似(分別为+8%和+9%).(2)苯乙肼10~(-6)M灌流正常豚鼠心脏不但能消除脑垂体后叶素(0.5单位/升)減少冠脉流量(-23%)的作用,且使冠脉流量增加(+18%).預先腹腔注射苯乙肼(15毫克/公斤/天)連續6天的“苯乙肼化”豚鼠心脏使脑垂体后叶素收縮冠脉的反应基本消失.(3)苯乙肼对“利血平化”(經酪胺証实心脏內儿茶酚胺已被耗竭)的豚鼠和猫心的作用与对正常心脏的作用无明显差別,提示它的作用与释放儿茶酚胺关系較小.(4)“利血平化”的豚鼠心脏对5-HT的反应比正常者敏感.“苯乙肼化”和苯乙阱一次灌流后的豚鼠心脏对5-HT的反应均无显著加...

用Langendorff离体心脏灌流法研究了苯乙阱对59只豚鼠和16只猫的冠脉流量、心搏率和心縮力的作用,并探討它与儿茶酚胺和5-羟基色胺(5-HT)的关系.(1)苯乙肼10~(-6)M对豚鼠搏动心脏有明显抑制,同时增加冠脉流量(+36%),其增加程度比在顫动心脏(+8%)更为明显,說明对搏动心脏增加冠脉流量的3/4是由于抑制心縮力而降低冠脉外阻力,另1/4是直接扩张冠脉的結果.对离体猫心的心搏率和心縮力无明显影响,因此在搏动和顫动心脏增加冠脉流量的程度近似(分別为+8%和+9%).(2)苯乙肼10~(-6)M灌流正常豚鼠心脏不但能消除脑垂体后叶素(0.5单位/升)減少冠脉流量(-23%)的作用,且使冠脉流量增加(+18%).預先腹腔注射苯乙肼(15毫克/公斤/天)連續6天的“苯乙肼化”豚鼠心脏使脑垂体后叶素收縮冠脉的反应基本消失.(3)苯乙肼对“利血平化”(經酪胺証实心脏內儿茶酚胺已被耗竭)的豚鼠和猫心的作用与对正常心脏的作用无明显差別,提示它的作用与释放儿茶酚胺关系較小.(4)“利血平化”的豚鼠心脏对5-HT的反应比正常者敏感.“苯乙肼化”和苯乙阱一次灌流后的豚鼠心脏对5-HT的反应均无显著加强,表明苯乙肼大概不是通过增加5-HT而扩张冠脉的.

The chordae tendineae and the papillary muscles of the left ventricle of 100 normal hearts of adult Chinese were studied and the classification of the chordae discussed. The chordae of the anterior leaflet may be divided into two orders, the first, or free margin chordae; and the second, including rough zone chordae and strut chordae. The chordae of the posterior leaflet may fall into three orders: the first, including free margin chordae and cleft chordae; the second, cr rough zone chordae; and the third, the...

The chordae tendineae and the papillary muscles of the left ventricle of 100 normal hearts of adult Chinese were studied and the classification of the chordae discussed. The chordae of the anterior leaflet may be divided into two orders, the first, or free margin chordae; and the second, including rough zone chordae and strut chordae. The chordae of the posterior leaflet may fall into three orders: the first, including free margin chordae and cleft chordae; the second, cr rough zone chordae; and the third, the basal chordae, inserting not only basal portion of the posterior leaflet but the annulus. The chordae of the posterior leaflet exceeded the anterior in number, whereas the latter exceeded the former in the average length and width. The first order chordae were the thinest. Of the second order chordae, (he strut chordae of the anterior leaflet were the thickest, their average width being 0.085 ± 0.022cm. The third order chordae, or basal chordae were found in 90 ± 5.77% of the cases. Besides, the chordae of the posterior commissural were longer and wider than those of the anterior commissural. The anterior papillary muscles were simpler and fewer in number, averaging 1.9 ±0.99, while the posterior papillary muscles were more complicated and more in number, averaging 2.56±0.99. In addition, single and smaller papillary muscles were often seen round the anterior and posterior papillary muscles.

1.本文对100例成人正常心脏的二尖瓣的腱索和乳头肌作了观察,并对腱素的分类作了探讨.2.二尖瓣前叶具有Ⅰ、Ⅱ级腱索,Ⅰ级腱索为游离腱索,Ⅱ级腱索为粗糙带腱索和支持腱索.后叶具有Ⅰ、Ⅱ、Ⅲ级腱索,Ⅰ级腱索包括游离腱索和裂口腱索,Ⅱ级腱索即粗糙带腱索,Ⅲ级腱索为基底腱索.3.二尖瓣后叶腱索的数目多于前叶,而前叶腱索的长度和宽度均大于后叶.Ⅰ级腱索最细.Ⅱ级腱索中以止于前叶的支持腱索为最粗壮,其平均宽度为0.085±0.022cm.Ⅲ级腱索终于后叶的基底部或二尖瓣纤维环,其出现率占总数的90±5.77%.此外,后连合腱索的平均长度和宽度均大于前连合.4.前乳头肌的数目较少,平均为1.9±0.99, 而后乳头肌则较多,平均为2.56±0.99.在前、后乳头肌的周围常可见单独较小的乳头肌存在.

Using self-designed counterpulsator,24 paired experiments were performed in 9mongrel dogs.The aortic and left atrial pressures were monitored,and coronary sinuswas cannulated via right atrium for measuring blood flow and for blood sampling.Each paired experiment included 30 min normal heart beating which served as con-trol and 30 min of counterpulsation.After counterpulsation,the average decrease oftension time index was 1044.30±221.47 mmHg.sec/min,and the average increase ofdiastolic pressure time index(DPTI)was...

Using self-designed counterpulsator,24 paired experiments were performed in 9mongrel dogs.The aortic and left atrial pressures were monitored,and coronary sinuswas cannulated via right atrium for measuring blood flow and for blood sampling.Each paired experiment included 30 min normal heart beating which served as con-trol and 30 min of counterpulsation.After counterpulsation,the average decrease oftension time index was 1044.30±221.47 mmHg.sec/min,and the average increase ofdiastolic pressure time index(DPTI)was 660.56±158.31 mmHg.sec/min.The incrementof endocardial viability ratio was 0.94±0.12.The coronary sinus blood flow wasincreased from 20.38±1.77 to 24.50±1.70 ml/min/100g and myocardial oxygen con-sumption increased from 2.41±0.28 to 2.98±0.32 ml/min/100g.The mean incrementof myocardial lactate extraction was 0.58±0.27 mg/min/100g.The coefficient of cor-relation(r)between DPTI and coronary sinus flow was 0.41.All these were statisticallysignificant.The data suggested that arterial counterpulsation could increase coronaryblood flow,activate heart function depressed by surgical stress and prevent subendoeardialischemia

本文报道用助搏反搏器对9只狗作动脉反搏,观察全麻下正常动物心脏在反搏前后的血液动力学与代谢变化。在反搏后,张力时间指数下降,舒张压时间指数增加,心内膜活力比率增加,冠状窦流量增加,心肌耗氧量增加,经统计均有显著意义,心肌乳酸摄取量亦有增加。实验结果提示反搏可使正常心脏冠状血流量增加,心肌细胞摄取更多的氧和乳酸,使受抑制的心肌细胞功能恢复;有利于防止手术时心内膜下缺血等并发症。

 
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