CAJ | 학술논문

该文提出了一种基于心脏建模及有限元求解的心房除颤电场分布仿真方法，用于分析动物实验和临床验证均无法精确测量的心脏除颤电场分布，为电除颤方法研究提供工具。该研究使用包含完整的心房解剖结构的心脏模型，采用有限元方法进行求解；并设计了由除颤电压阈值、高场强率、除颤能量阈值三个参数组成的评价指标体系评价除颤效果。对经静脉房颤除颤时不同电极位置与尺寸的心脏电场分布进行了仿真研究，结果与文献报道有相当好的吻合度，初步验证了该方法的可行性。
해문제출료일충기우심장건모급유한원구해적심방제전전장분포방진방법，용우분석동물실험화림상험증균무법정학측량적심장제전전장분포，위전제전방법연구제공공구。해연구사용포함완정적심방해부결구적심장모형，채용유한원방법진행구해；병설계료유제전전압역치、고장강솔、제전능량역치삼개삼수조성적평개지표체계평개제전효과。대경정맥방전제전시불동전겁위치여척촌적심장전장분포진행료방진연구，결과여문헌보도유상당호적문합도，초보험증료해방법적가행성。
A distributed simulation method of electric field based on the atrial defibrillation of the heart modeling and finite element solution is proposed in this study. In order to solve the problem that ordinary clinical trials could not measure the actual distribution of the defibril ation electric field in the heart accurately, this method provides a research tool for electrical defibril ation. A complete atrial anatomical structure in the heart model is used in the research, the finite element method is proceeded to solve; Three parameters: defibril ation threshold voltage, the high field strength rate and the defibril ation threshold energy are set to evaluate the effect of defibril ation. The heart electric field distributions of transvenous atrial defibril ation with different electrode locations or sizes are simulated. The simulation results and the reported results match fairly wel , which initial y verify the feasibility of this method.