Exploratory assessment of field-tag–based catheter-tissue contact and acute lesion surrogates during pulsed field ablation

Heart Rhythm O2 2026 Open access

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Authors: Shu Hirata, Koichi Nagashima, Ryuta Watanabe, Yuji Wakamatsu, Yuji Saito, Naoto Otsuka, Moyuru Hirata, Masanaru Sawada, Hikaru Masuda, Yasuo Okumura
DOI: 10.1016/j.hroo.2026.02.003
Cited by: 1
References: 5

Abstract

Pulsed field ablation (PFA) enables efficient pulmonary vein isolation (PVI) with a favorable safety profile1,2; however, intraprocedural assessment of lesion coverage and catheter-tissue contact remains limited.3,4 The OPAL HDx mapping system (FARAVIEW module) projects “field-tags” onto 3-dimensional maps on the basis of tissue proximity, but pragmatic tag settings and contact surrogates are not established.5 We explored field-tag–derived indices for contact assessment, correspondence with acute low-voltage zones (LVZs), and feasibility of a field-tag–guided workflow.

Fields of Study & Subjects

Cardiac Arrhythmias and Treatments Microbial Inactivation Methods Central Venous Catheters and Hemodialysis

Publication details

Journal / source
Heart Rhythm O2
Publisher
Elsevier BV
Volume
7
Issue
4
Pages
817–819
Publication date
11 February 2026
Language
EN