Use of Infrared Thermography to Delineate Temperature Gradients and Critical Isotherms During Catheter Ablation with Normal and Half Normal Saline: Implications for Safety and Efficacy

2021 ◽  
Author(s):  
Henry D. Huang ◽  
Venkatesh Ravi ◽  
Paul Rhodes ◽  
Jeanne M. Du‐Fay‐de‐Lavallaz ◽  
Jeffrey Winterfield ◽  
...  
Keyword(s):  
Catheter Ablation ◽  
Infrared Thermography ◽  
Normal Saline ◽  
Temperature Gradients ◽  
Safety And Efficacy

scholarly journals B-PO05-124 USE OF INFRARED THERMOGRAPHY TO EVALUATE TEMPERATURE GRADIENTS AND CRITICAL ISOTHERMS DURING CATHETER ABLATION WITH NORMAL AND HALF-NORMAL SALINE IN A PORCINE LEFT VENTRICULAR MODEL

Heart Rhythm ◽  
2021 ◽  
Vol 18 (8) ◽  
pp. S422
Author(s):  
Henry D. Huang ◽  
Paul Rhodes ◽  
Venkatesh Ravi ◽  
Jeanne M. Du-Fay-de-Lavallaz ◽  
Jeffrey R. Winterfield ◽  
...  
Keyword(s):  
Catheter Ablation ◽  
Infrared Thermography ◽  
Normal Saline ◽  
Left Ventricular ◽  
Temperature Gradients

scholarly journals Hybrid Catheter-Based and Surgical Techniques for Ablation of Ventricular Arrhythmias

2020 ◽  
Vol 9 (2) ◽  
pp. 97-103
Author(s):  
Fouad Khalil ◽  
Konstantinos Siontis ◽  
Gabor Bagameri ◽  
Ammar M Killu ◽  
◽  
...  
Keyword(s):  
Catheter Ablation ◽  
Ventricular Arrhythmia ◽  
Ventricular Arrhythmias ◽  
Surgical Techniques ◽  
Hybrid Technique ◽  
Surgical Ablation ◽  
Safety And Efficacy ◽  
Energy Delivery ◽  
Novel Approach ◽  
Growing Body

Catheter ablation is a rapidly expanding and evolving field. The advent of interventional techniques and advances in technology have allowed catheter ablation to supplant antiarrhythmic surgery for ventricular arrhythmia treatment. However, issues related to access and energy delivery limit the use of catheter ablation in some cases. Hybrid catheter-based and surgical techniques represent a novel approach to overcome these limitations. The hybrid technique combines the strengths and minimises the limitations of either catheter or surgical ablation alone. There is a growing body of evidence in the literature supporting the safety and efficacy of the hybrid surgical technique. This review aims to provide an overview of hybrid surgical-catheter ablation for ventricular arrhythmia.

A novel method using infrared thermography for hot fluid leakage detection on surfaces with uneven emissivities

2021 ◽  
Vol 63 (5) ◽  
pp. 273-279
Author(s):  
Xiao Zhao ◽  
Qi Zhang ◽  
Xiang Xu ◽  
Zhibin Shen ◽  
Bo Zhang
Keyword(s):  
Infrared Thermography ◽  
Negative Temperature ◽  
Temperature Gradients ◽  
Heating Process ◽  
Positive Temperature ◽  
Leakage Detection ◽  
Surface Emissivity ◽  
Uneven Surface ◽  
Transient Heating ◽  
Fluid Leakage

Uneven surface emissivity will cause illusory temperature variation in infrared surface temperature mapping. For this reason, most of the detailed reviews on the use of infrared thermography (IRT) for leakage detection have mainly focused on surfaces with homogeneous emissivity or the recognition of negative temperature gradients, while reports on sensing hot fluid leakage for uneven surface emissivity are very rare. In this study, a hypothesis is put forward and a new leakage detection method is proposed that uses a transient heating-cooling-heating process in association with a subtraction method of infrared images to eliminate the disturbance of inhomogeneous valve surface emissivities. A theoretical analysis is established that is experimentally tested as a case study. The results shows that the hypothesis is clear and the effect of the uneven emissivity is suppressed for the recognition of positive temperature gradients (hot fluid leakage) on a metal valve sample. The current work provides new insights on the modification of the surface emissivity under certain conditions, which has been a major limitation of passive IRT in the past.

scholarly journals 1052-220 Safety and efficacy of catheter ablation of atrial fibrillation using an irrigated-tip ablation catheter

2004 ◽  
Vol 43 (5) ◽  
pp. A114 ◽  
Author(s):  
Chandrasekhar R Vasamreddy ◽  
Vinod Jayam ◽  
Lars Lickfett ◽  
David Bradley ◽  
Khurram Nasir ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
Ablation Catheter ◽  
Safety And Efficacy
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