phonocardiogram

英/ ˌfəʊnə(ʊ)ˈkɑːdɪəgræm; ˌfɒnə- /

美/ ˌfoʊnəˈkɑːrdiəˌɡræm /

1
心音图
...素引起的机械振动，可通过周围组织传递到胸壁；用听诊器放在胸壁某些部位，可听到的声音，称为心音 • 心音图(Phonocardiogram)：用换能器将心音的机械振动转换成电信号，便得到心音图。 • 心动周期中多数只能闻及第一心音和第二心音。
2
心音心电图
... phonocandiographpreamplifier心音前置放大器 phonocardiogram心音图 心音心电图 phonocardiograph心音描记器心音描记仪心音图机 ...
3
图又被称为心音图
若用传感器将这些机械振动转换为电信号记录下来，就可得到心音信号，其波形 图又被称为心音图（Phonocardiogram，PCG）。目前，在记录心音时，S1、S2、S3、S4和心脏杂音同时记录和保存。
4
为心音图
心音是一种由振动产生的声波,其图形表达为心音图(phonocardiogram,PCG)。相对于话音信号,心音信号有效成分的频段较低,一般在1kHz以下,但仍具有声信号的基本特征(如基频、...

短语

1
ECG and phonocardiogram were recorded by synchronization.
整个检查过程同步记录心电图及心音图。
2
It consists of a phonocardiogram sensor, a heart sound collecting and processing circuit, and a computer.
该系统由心音传感器、心音信号采集处理电路及计算机组成。
3
Objective: Explore the value of phonocardiogram exercise test (PCGET) to evaluating cardiac contractility.
目的：探讨心音图运动试验（PCGET）评估心肌收缩力及心力储备的价值。

Phonocardiogram
A Phonocardiogram or PCG is a plot of high fidelity recording of the sounds and murmurs made by the heart with the help of the machine called phonocardiograph, or "Recording of the sounds made by the heart during a cardiac cycle." The sounds are thought to result from vibrations created by closure of the heart valves. There are at least two: the first when the atrioventricular valves close at the beginning of systole and the second when the aortic valve and pulmonary valve close at the end of systole. It allows the detection of subaudible sounds and murmurs, and makes a permanent record of these events. In contrast, the ordinary stethoscope cannot detect such sounds or murmurs, and provides no record of their occurrence. The ability to quantitate the sounds made by the heart provides information not readily available from more sophisticated tests, and provides vital information about the effects of certain cardiac drugs upon the heart. It is also an effective method for tracking the progress of the patient's disease.

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