Ptfv1
例句释义:1.Methods: 92 cases of patients electrocardiograms PTFV1 before and after PTCA and stent implantation were analyzed.方法：对92例PTCA及支架置入术患者术前、术后心电图的PTFV1进行分析。
2.abstract: Objective: To investigate the effect of PTCA and stent implantation on V1P wave terminal vector(PTFV1).目的：探讨冠状动脉腔内血管成形术（PTCA）及支架置入术对V1P波终末向量（PTFV1）的影响。