Mashima S, Takayanagi K, Inoue H, Matsuo H
Jpn Heart J. 1983 Nov;24(6):843-51. doi: 10.1536/ihj.24.843.
Twelve cases with temporary artificial pacing were used to investigate on the efficacy of a bipolar current source within the heart to generate potential variations in Frank lead ECGs. A constant current, subthreshold square pulse was applied to the catheter electrodes and the artefact was recorded with the Frank system. Assuming that the Frank system was normalized and orthogonal, the lead vector magnitude was calculated as 0.58 ohm/cm on the average. The value of the lead vector was inversely related to the thorax size. The direction of the vector determined from the recorded potentials approximated the direction of the catheter tip on the X-ray film. In addition, similar measurements were made with a homogeneous torso model and the results were compared with those of clinical cases.
选取12例使用临时人工起搏的患者，研究心脏内双极电流源产生Frank导联心电图潜在变化的效果。将恒定电流、阈下方形脉冲施加于导管电极，并用Frank系统记录伪迹。假设Frank系统已归一化且呈正交状态，平均计算得出导联向量幅值为0.58欧姆/厘米。导联向量值与胸廓大小呈负相关。根据记录电位确定的向量方向与X线片上导管尖端的方向相近。此外，使用均匀躯干模型进行了类似测量，并将结果与临床病例的结果进行比较。
