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- S4.The fourth heart sound (S4, atrial gallop, presystolic gallop) is also the result of altered ventricular compliance.Its cadence has been likened to the soft a of appendix. S4第四心音，又叫房性奔马律，收缩期前奔马律，也是心室顺应性改变的结果。
- fourth heart sound(an abnormal heart sound) 第四心音(一种异常心音)
- A Wavelet Transform Time-Frequency Analysis of the Third and Fourth Heart Sound of Old People 老年人第三第四心音信号小波变换时频分析研究
- fourth heart sounds 第四心音
- pathologic fourth heart sound 病理性第四心音
- fourth heart sound 第四心音
- The 3rd heart sounds is physiology sex, without pathology meaning. 第三心音是生理性的，没有病理意义。
- The heart sounds are muffled when the pericardial sac is distended with fluid. 当心包充满液体时心音减弱。
- Firstly,the original heart sounds signal was preprocessed by Huang Transform. 首先利用黄变换对心音信号进行预处理;
- Then on the heart sound envelope, S1 and S2 were recognized. 然后利用数学形态学方法提取心音信号的包络;
- An instrument consisting of microphones and recording equipment used to monitor and record heart sounds and murmurs. 心音描记图由话筒和记录装置组成的仪器，用来监测和记录心脏声音和杂音
- A graphic record of heart sounds and murmurs that is produced by a phonocardiograph. 心音描记图通过心音描记器产生的心脏声音和杂音的图画记录
- Auscultation: heart sounds normal, but soft pan systolic murmur at apex radiating to axilla. 听诊:心音正常,但心尖问及收缩前柔和杂音,向腋窝放射。
- Serum E3, hpL, amniotic fluid index (AFI), and fetal heart sounds were surveyed. 分别测定两个亚级的血E3 、血hpL ,监测羊水指数、胎心监护及胎儿预后以了解和判断胎盘功能。
- Time is sometimes called the fourth dimension. 时间有时被称为第四度空间。
- The experiments showed that ICA could separate the components of heart sounds from PCG signals successfully. 试验结果表明,ICA在心音信号的处理中是一种很有潜力的方法。
- Cardiac tamponade is suggested by jugular venous distention, muffled heart sounds, and a paradoxical pulse. 颈静脉怒张、心音低沉、及奇脉提示心包填塞。
- Abstract： A new method of analyzing heart sounds is presented based on the continuous wavelet transform (CWT). 摘 要： 将连续小波变换应用于心音信号的分析中。
- Diagnosis is based on typical heart sounds and echocardiography or electrocardiography patterns. 根据典型的心脏杂音、超音波心动描记法或心电描记法来诊断。
- In this paper, a new method was put forward for automatic recognition of the first heart sounds(S1) and the second heart sounds(S2). 为实现对第一心音(S1)和第二心音(S2)的自动识别提出了一种新方法。
