英语释义

1. the ratio of the volume of blood the heart empties during systole to the volume of blood in the heart at the end of diastole expressed as a percentage usually between 50 and 80 percent
An echocardiogram obtained 6 days after the initiation of chemotherapy showed that the ejection fraction had improved to 45%; 2 weeks later it was 66%.
— Patrick T. O'Gara et al., The New England Journal of Medicine, 17 Dec. 2009

片语

left ventricular ejection fraction左心室射血分数

left ventrieular ejection fraction室射血分数

left ventriettlar ejection fraction左室射血分数

ventricular ejection fraction心室射血分数

left atrial ejection fraction及左心房射血分数

regional ejection fraction局部射血分数

ejection fraction at rest静息射血分数

dynamic ejection-fraction image动态射血分数图像

left ventficular ejection fraction左心室射血分数

英汉例句

• echocardiographic parameters as left ventricular ejection fraction (lvef) and mitral e/a ratio were compared between preprecedure and 6 months after precedure.

  比较两组术前和术后6个月随访的左心室射血分数（lvef）、二尖瓣血流e峰和a峰最大充盈速度比值（e/a）差异。

• dr. wagner: the big question today was the bnp and heart failure with preserved ejection fraction and it「s really not clear what to do, and that for me is the biggest question.

  如今的大问题是bnp和射血分数保留的心力衰竭，的确尚不清楚要做什么，这对我来说是最大的问题。

• design, setting, and patients multicenter, randomized controlled trial among 2331 medically stable outpatients with heart failure with left ventricular ejection fraction of 35% or less.

  试验设计、设定与病人多中心随机对照试验，2331名医学上稳定的门诊心衰患者，左心室射血分数小于等于35%。

• heart rate and left ventricular ejection fraction were improved significantly in experimental group as compared with control group (p0 . 05).

  治疗组的心率、左心室射血分数较对照组改善明显（p0·05）。

• the problem for patients with preserved ejection fraction is we are not sure what to treat those patients with, so we don」t have good evidence-based medicine in the preserved ef population.

  对于射血分数正常的患者我们尚不能确定该如何进行治疗，所以我们对这部分患者没有遵循循证医学根据的用药指导。

• the primary end points were the left ventricular ejection fraction and left ventricular end-systolic volume at 12 months.

  初期的筛分终点是12个月的左心室射血分数和左心室收缩末期容积。

• the patients' left ventricular ejection fraction ( ef ) and the peak filling rate ( pfr ) were decreased , and the time of peak filling rate ( tpfr ) was prolonged.

  发现病人的左室射血分数（ef）下降，高峰充盈率（pfr）下降，高峰充盈时间（tpfr）延长。

• objective to validte the yeliabil of left ventricle ejection fraction (lef) measured by reconstructed impedance cardiography(ricg).

  目的验证重建心阻抗图测量左室射血分数（lef）的可靠性。

• summed stress scores and left ventricular enlargement provided incremental prognostic information, the researchers note, but including left ventricular ejection fraction did not improve the model.

  研究人员注意到：负荷总分和左心室增大程度可以提供更加準确的预后信息，但是射血分数对本模型没有贡献。

• results:fext powder has obvious effects to increase ejection fraction and heart output and the diastole late term volume of ventricular sinister.

  结果：福耳心痛散有明显增加正常家猫射血分数、每分心输量、左心室舒张末期容积的作用。

• postprandial gallbladder ejection fraction of mpfd was remarkably enhanced 11.2% ( p0.05) by the combination of tibolone and cisapride.

  替勃龙与西沙必利联合应用时，可明显提高绝经期fd患者的餐后胆囊排空率11.2 % ，p0.0 5。

• powerful predictors of a positive test are an ejection fraction less than 40%, bundle branch block, or atrial fibrillation.

  对射血分数小于40%及束支传导阻滞或房性纤颤的阳性检查效果最好。

• in 42% of the group, mr was detected. age and left ventricular ejection fraction were the only predictors of its development.

  有42%的患者被检测到有二尖瓣返流，年龄和左心室射血分数是评价二尖瓣发展的唯一指标。

• however, ejection fraction and left atrial volume index stayed the same.

  但是，射血分数及左房容积仍然不变。

• provides the most commonly used parameter to describe the lv function, the ejection fraction (ef).

  提供最常用的参数来描述左心室功能，射血分数（ef）。

• left ventricular ejection fraction before and after treatment, heart function.

  比较治疗前后左室射血分数、心功能等。

• should treatment for heart failure with preserved ejection fraction differ from that for heart failure with reduced ejection fraction?

  射血分数正常性心力衰竭的疗法不同于射血分数降低的心力衰竭吗？