Forty - five convalescent patients with acute myocardial infarction were studied by dobutamine echocardiography stress test ( EDST ).是什么意思？

Forty - five convalescent patients with acute myocardial infarction were studied by dobutamine echocardiography stress test ( EDST ).

用超声心动图多巴酚丁胺负荷试验 ( DEST ) 检查了45例急性心肌梗塞恢复期病人.

forty

n. 四十，四十几；adj. 四十的；

例句
In my local health centre there's about forty parking spaces...
我们本地的保健中心约有40个停车位。

five

num. 五，五个，与某人击掌问候（或庆祝胜利），第五；n. 五，五个，5美元钞票，[板]得五分；adj. 五的，五个的；

例句
I'm just checking up on Kim. It'll take me all of five minutes.
我只是要督促一下金，总共也就需要5分钟。

convalescent

adj. 恢复（期）的，康复期的；n. 恢复期的病人；

例句
...an officers' convalescent home.
军官康复中心

patients

n. 患者( patient的名词复数 )，接受治疗者，受动着，承受者；

例句
...a Code of Practice that would give patients right of access to their medical records.
允许病人查看自己病历的职业准则

with

prep. 和，跟，随着，关于，和…一致；

例句
A waiter entered with a tray...
侍者端着托盘进来了。

acute

adj. 尖的，锐的，敏锐的，敏感的，严重的，剧烈的，[医]急性的；

例句
The war has aggravated an acute economic crisis...
战争加剧了原本已很严重的经济危机。

Myocardial

adj. 心肌的；

例句
Acute myocardial infarction ( AMI ) is one of the most common cardiovascular emergencies.
急性心肌梗死 ( AMI ) 是人类最常见的心血管急症之一.

infarction

n. 梗塞形成，梗死形成；

例句
Myocardial infarction is the medical term for a heart attack.
心肌梗死是心脏病的医学用语。

were

be的过去时复数和第二人称单数形式，有时代替 was,用于条件从句、动词 wish 之后等；

例句
Shops, houses, and vehicles were set ablaze.
店铺、房子和车辆全都陷于火海。

studied

adj. 有计划的，故意的，深思熟虑的，精通的；v. 学习，研究( study的过去式和过去分词 )，想出，详细地检查，背诵（台词等）；

例句
At college he studied English and did amateur boxing.
大学时，他学习英语，同时还参加业余拳击。

by

prep. 在…旁边，表示方式，由于，经过；adv. 经过，表示保留或保存时用，短暂拜访；

例句
...expensive make-up that we saw being advertised by a beautiful model...
我们所见的由一位漂亮模特代言的昂贵化妆品

dobutamine

多巴酚丁胺；

例句
Purpose : To search for dobutamine ( Dob ) induced changes in left ventricular diastolic function in old myocardial infarction ( OMI ).
目的: 评价多巴酚丁胺对心肌梗塞患者左室舒张功能有何影响.

echocardiography

n. 心回波描记，超声心动描记术；

例句
Forty - five convalescent patients with acute myocardial infarction were studied by dobutamine echocardiography stress test ( EDST ).
用超声心动图多巴酚丁胺负荷试验 ( DEST ) 检查了45例急性心肌梗塞恢复期病人.

stress

n. 强调，重音，压力，重力；vt. 重读，[机械学]使承受压力，给…加压力（或应力）；

例句
This book teaches you how to analyse what is causing the stress in your life.
这本书教你分析生活压力形成的原因。

test

n. 试验，考验，测验，化

例句
Car manufacturers are already producing small numbers of electric vehicles to test customer acceptance...
汽车制造商们已经开始生产少量的电动车辆以测试顾客的接受程度。