The Displacement Cardiograph: A Noninvasive Technique for Recording Myocardial Wall Motion
The Displacement Cardiograph: A Noninvasive Technique for Recording Myocardial Wall Motion
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位移心电图仪：一种记录心肌壁运动的无创技术
DOI：
10.1161/01.cir.53.1.139
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发表时间：
1976
期刊：
影响因子：
37.8
通讯作者：
C. Joyner
中科院分区：
文献类型：
--
作者：
T. C. Gay;R. Vas;D. E. Pittman;C. Joyner
位移心电图仪 (DCG) 是一种利用电磁场记录体内组织运动的无创设备。传感线圈不需要与患者接触，因为磁场会穿透空气和静止组织而不会产生明显的变形。由心室壁运动引起的场干扰被电子转换为模拟输出和刻在生理记录仪纸上的模式。为了确定 DCG 在检测左心室壁运动异常区域的可靠性，我们从 70 名接受心导管检查和左心室造影的患者身上获取了位移心电图。 70 名患者中有 67 名的 DCG 解释与左心室壁运动的心室造影图像一致。 DCG 诊断有 2 例假阳性和 1 例假阴性。结果表明，DCG 可作为一种可靠的无创方法来重复评估左心室前壁、前外侧和后壁的收缩模式。
The displacement cardiograph (DCG) is a noninvasive device employing an electromagnetic field to record tissue motion within the body. The sensing coil need not be in contact with the patient since the field penetrates air and stationary tissue without significant distortion. Disturbances in the field which result from ventricular wall motion are electronically converted to an analog output and a pattern inscribed on the paper of a physiological recorder. In an attempt to determine the reliability of the DCG in detecting regional areas of abnormal left ventricular wall motion, displacement cardiograms were obtained from 70 patients who underwent cardiac catheterization and left ventriculography. The DCG interpretations were in agreement with the ventriculographic picture of left ventricular wall motion in 67 of the 70 patients. There were two false positive and one false negative DCG diagnoses. The results indicate that the DCG can be employed as a reliable noninvasive method for repetitive assessment of the pattern of contraction of the anterior, anterolateral and posterior left ventricular wall.