Benmair Y, Lehrer E, Fischel B, Dreyfuss F, Frei E H, Laniado S
Chest. 1977 Feb;71(2):163-9. doi: 10.1378/chest.71.2.163.
A new apexcardiographic recording system has been developed which is free of certain technical limitations. This noncontact magnetic transducer was tested alternately with a commonly used pneumatic piezoelectric transducer in a comparative study on ten normal subjects. The magnetic registration offered a more accurate timing and configuration of the ACG. Signal distortion, such as peaked waves and an early fall of the systolic wave, was eliminated. The magnetic transducer was capable of recording directional apex point tracings, as well as pulsations of a larger apical area. The new system proved to possess definite advantages and eliminated some of the inconveniences inherent in the pneumatically coupled system.
一种新的心尖搏动图记录系统已经研发出来，它不存在某些技术限制。在一项针对十名正常受试者的对比研究中，这种非接触式磁传感器与常用的气动压电传感器交替进行了测试。磁记录提供了更准确的心尖搏动图定时和形态。信号失真，如尖峰波和收缩期波的早期下降，都被消除了。磁传感器能够记录心尖点的方向轨迹以及更大心尖区域的搏动。新系统证明具有明确的优势，并且消除了气动耦合系统固有的一些不便之处。
