scholarly journals SmartTouch™ – The Emerging Role of Contact Force Technology in Complex Catheter Ablation

2012 ◽  
Vol 1 ◽  
pp. 59 ◽  
Author(s):  
Stephen P Page ◽  
Mehul Dhinoja ◽  
◽  
Keyword(s):  
Contact Force ◽  
Published Data ◽  
3D Mapping ◽  
Ablation Catheter ◽  
Novel Technologies ◽  
Novel Technology ◽  
Mapping System ◽  
3D Mapping System ◽  
Potential Applications

Novel technologies have been developed recently to assess contact between the ablation catheter and the underlying tissue in an attempt to improve safe and effective lesion delivery. The most recently developed technology is the SmartTouch™ catheter which is an open irrigated-tip catheter integrated within the CARTO 3 3D mapping system. In this review we consider the role of contact force technology, evaluate the published data and discuss the potential applications of this novel technology.

Abstract 18572: Limitations of Endocardial Unipolar Voltage Mapping in Predicting the Epicardial Substrate

Circulation ◽  
2015 ◽  
Vol 132 (suppl_3) ◽  
Author(s):  
Yalçin Gökoglan ◽  
Mahmut F Günes ◽  
Luigi Di Biase ◽  
Carola Gianni ◽  
Sanghamitra Mohanty ◽  
...  
Keyword(s):  
Low Voltage ◽  
3D Mapping ◽  
Bipolar Voltage ◽  
Voltage Mapping ◽  
Arrhythmogenic Substrate ◽  
Mapping System ◽  
3D Mapping System ◽  
Modest Correlation

Introduction: Bipolar voltage mapping detects areas of scar and guides ablation of VT. The role of endocardial unipolar voltage mapping is not well defined. We examined the endo-epicardial substrate in a mixed cohort of patients with structural heard disease (SHD) to determine whether an endocardial unipolar low voltage area predicts the presence and location of an epicardial scar. Results: Data from 24 consecutive patients with SHD (11 ICM, 6 NICM, 3 HCM, 2 ARVC, 1 myocarditis, 1 Brugada) with a detailed (mean points per map 200) combined endocardial-epicardial substrate mapping were retrospectively reviewed. Maps were obtained using a 3D mapping system (CARTO 3) and normal thresholds used were ≤1.5 mV for bipolar voltage, and ≤5.5 (RV) or ≤8.3 mV (LV) for unipolar voltage. Mapping was performed in the LV in 17 patients, in the RV in 6 patients, in both in 1 patient. An endocardial unipolar low voltage area was found in 21/25 maps. In 12/21 maps there was no corresponding epicardial scar, while in 3/4 cases an epicardial scar was detected despite a negative unipolar map (PPV=43%, NPV=25%, P=NS; Fig. 1). In the 9 cases with both positive endocardial unipolar and epicardial bipolar maps, the epicardial scar was found in the corresponding ventricular region of the endocardial low-voltage area, although unipolar area had a tendency to overestimate the area of the scar (115 vs 95 cm 2 ). Conclusion: In this series of patients with SHD, analysis of unipolar voltage maps could not reliably predict the epicardial arrhythmogenic substrate. There is a modest correlation between areas of endocardial unipolar low voltage and epicardial scars (57% of patients with an abnormal unipolar map had a normal epicardial substrate). Moreover, an epicardial substrate cannot be safely excluded based on a normal unipolar endocardial map. Fig. 1 Abnormal bipolar epicardial map (left) with corresponding normal unipolar endocardial map (right) in a patient with ARVC. Pink dots represent area of defragmentation.

scholarly journals Successful right-sided azygos coil implantation for failed defibrillation thresholds using a 3D mapping system

2021 ◽  
Vol 30 (4) ◽  
pp. 626-628
Author(s):  
Katherine Romanowicz ◽  
Muhammad Athar ◽  
Alexandru Costea
Keyword(s):  
3D Mapping ◽  
Mapping System ◽  
3D Mapping System

Design of an Underwater Riverbed 3D Mapping System for Navigation in Bangladesh

2018 ◽  
Author(s):  
Navan Tanjeem Hossain ◽  
Rahat Mahmood Khan ◽  
Saifur Rahman ◽  
Md. Ziaur Rahman Khan
Keyword(s):  
3D Mapping ◽  
Mapping System ◽  
3D Mapping System

scholarly journals Fluoroscopy integrating technology in a 3D mapping system during ablation of atrial arrhythmias: first experiences

2016 ◽  
Author(s):  
Christian Blockhaus ◽  
Jan Schmidt ◽  
Muhammed Kurt ◽  
Lukas Clasen ◽  
Patrick Müller ◽  
...  
Keyword(s):  
Atrial Arrhythmias ◽  
3D Mapping ◽  
Integrating Technology ◽  
Mapping System ◽  
3D Mapping System

scholarly journals Radiofrequency catheter ablation of left-sided accessory pathways in children using a new fluoroscopy integrated 3D-mapping system

EP Europace ◽  
2017 ◽  
Vol 19 (7) ◽  
pp. 1198-1203 ◽  
Author(s):  
Fabrizio Drago ◽  
Gino Grifoni ◽  
Romolo Remoli ◽  
Mario Salvatore Russo ◽  
Daniela Righi ◽  
...  
Keyword(s):  
Catheter Ablation ◽  
Radiofrequency Catheter Ablation ◽  
3D Mapping ◽  
Accessory Pathways ◽  
Mapping System ◽  
3D Mapping System
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