Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Recalled experiences of death: need for empirical research without prejudice.

Nature reviews. Neurology·2026
Same author

Analytical model of large-diameter spherical-like catheter for pulsed field ablation in treating cardiac arrhythmias.

Physics in medicine and biology·2025
Same author

Impact of Intrapericardial Fluid on Lesion Size During Epicardial Radiofrequency Ablation: A Computational Study.

Journal of cardiovascular development and disease·2025
Same author

Computer modelling and vegetable bench test of a bipolar electrode array intended for use in high frequency irreversible electroporation treatment of skin cancer.

Biomedical engineering letters·2025
Same author

Proactive esophageal cooling during radiofrequency cardiac ablation: data update including applications in very high-power short duration ablation.

Expert review of medical devices·2024
Same author

Hybrid convergent procedure with proactive oesophageal cooling for the treatment of long-standing persistent atrial fibrillation: a case series.

European heart journal. Case reports·2024

相关实验视频

Updated: May 27, 2025

Author Spotlight: Computing the Effects of a Local Radiofrequency Hyperthermia Intervention on Tumor Biomechanics
10:23

Author Spotlight: Computing the Effects of a Local Radiofrequency Hyperthermia Intervention on Tumor Biomechanics

Published on: December 1, 2023

349

脉冲场剥离过程中的热副作用:使用计算机建模分析.

Marcela Mercado-Montoya1, Tatiana Gomez-Bustamante1, Steven R Mickelsen2

  • 1Bioengineering Department, IN SILICO STEM S.A.S, Calle 52 81-48, Medellín 050035, Colombia.

Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology
|February 17, 2025
PubMed
概括
此摘要是机器生成的。

脉冲场移除 (PFA) 可以引起热效应,特别是在更高的电压下. 这项研究表明,峰值电压在PFA过程中显著影响能量沉积和潜在的组织损伤.

关键词:
在模拟模型.心房动是一种心房动.计算分析 计算分析脉冲场能量是脉冲场的能量.模拟模拟是为了模拟.热性消去是热性消去的一种.

更多相关视频

Thermal Ablation for the Treatment of Abdominal Tumors
07:16

Thermal Ablation for the Treatment of Abdominal Tumors

Published on: March 7, 2011

34.3K
Emission Spectroscopic Boundary Layer Investigation during Ablative Material Testing in Plasmatron
09:41

Emission Spectroscopic Boundary Layer Investigation during Ablative Material Testing in Plasmatron

Published on: June 9, 2016

12.3K

相关实验视频

Last Updated: May 27, 2025

Author Spotlight: Computing the Effects of a Local Radiofrequency Hyperthermia Intervention on Tumor Biomechanics
10:23

Author Spotlight: Computing the Effects of a Local Radiofrequency Hyperthermia Intervention on Tumor Biomechanics

Published on: December 1, 2023

349
Thermal Ablation for the Treatment of Abdominal Tumors
07:16

Thermal Ablation for the Treatment of Abdominal Tumors

Published on: March 7, 2011

34.3K
Emission Spectroscopic Boundary Layer Investigation during Ablative Material Testing in Plasmatron
09:41

Emission Spectroscopic Boundary Layer Investigation during Ablative Material Testing in Plasmatron

Published on: June 9, 2016

12.3K

科学领域:

  • 心脏病学 心脏病学
  • 在瘤学瘤学.
  • 生物医学工程 生物医学工程

背景情况:

  • 脉冲场除 (PFA) 被认为是非热的,但在临床应用中已经观察到热效应.
  • 在PFA期间影响热能产生的特定参数仍然不完全理解.

研究的目的:

  • 以数值评估PFA对心肌和食道组织的热效应.
  • 调查不同峰值电压条件在PFA期间对热能发展的影响.

主要方法:

  • 用左心室的3D计算机模型来量化热效应.
  • 模拟PFA使用双极配置与特定的电极边界条件.
  • 一个单相波形 (100微秒脉冲宽,1秒间隔) 应用于50个脉冲的1,1,5和2kV.

主要成果:

  • 在1kV (214.5J) 时观察到最小的食道温度升高.
  • 在单个脉冲列车后,温度分别达到46.3°C和62°C,分别为1.5kV (570.3J) 和2kV (1.23kJ).
  • 重复的PFA应用可能会导致显著的温度升高,特别是在良好的组织接触的情况下.

结论:

  • 在PFA中,热效应取决于总储存的能量,而峰值电压是关键决定因素.
  • 当前的PFA系统可能会在重复使用时引发附带热损伤.
  • 在临床实践中,仔细监测和调整PFA参数至关重要.