biostudies-literatureVicera JJBSzu-Yuan Research Foundation of Internal MedicineResearch Foundation of Cardiovascular Medicine, Taipei Veterans General HospitalGrants of Taipei Veterans General HospitalGrants of Ministry of Science and Technology, Taiwan1436-1447https://www.ebi.ac.uk/biostudies/studies/S-EPMC7383970biostudies-literatureUnknown31(6)<h4>Introduction</h4>Accurate identification of slow conducting regions in patients with scar-related atrial tachycardia (AT) is difficult using conventional electrogram annotation for cardiac electroanatomic mapping (EAM). Estimating delays between neighboring mapping sites is a potential option for activation map computation. We describe our initial experience with CARTO 3 Coherent Mapping (Biosense Webster Inc,) in the ablation of complex ATs.<h4>Methods</h4>Twenty patients (58 ± 10 y/o, 15 males) with complex ATs were included. We created three-dimensional EAMs using CARTO 3 system with CONFIDENSE and a high-resolution mapping catheter (Biosense Webster Inc). Local activation time and coherent maps were used to aid in the identification of conduction isthmus (CI) and focal origin sitesJournal of cardiovascular electrophysiologyIdentification of critical isthmus using coherent mapping in patients with scar-related atrial tachycardia.PMC7383970MOST 107-2314-B-010-061-MY2V109D48-001-MY2-1C17-095V108C-032109015107-02-036MOST 106-2314-B-010-046-MY3)Chou CYLo LWLin YJHu YFVicera JJBLiu SHCheng WHLee PTHuang SHChung FPChang SLLin CHChuang CMLiu CHLiao JNChen CCChin CGChang TYLugtu ILin CYTai LPWu CITuan TCChen SAChao TFLiu CMfalseIdentification of critical isthmus using coherent mapping in patients with scar-related atrial tachycardia.<h4>Introduction</h4>Accurate identification of slow conducting regions in patients with scar-related atrial tachycardia (AT) is difficult using conventional electrogram annotation for cardiac electroanatomic mapping (EAM). Estimating delays between neighboring mapping sites is a potential option for activation map computation. We describe our initial experience with CARTO 3 Coherent Mapping (Biosense Webster Inc,) in the ablation of complex ATs.<h4>Methods</h4>Twenty patients (58 ± 10 y/o, 15 males) with complex ATs were included. We created three-dimensional EAMs using CARTO 3 system with CONFIDENSE and a high-resolution mapping catheter (Biosense Webster Inc). Local activation time and coherent maps were used to aid in the identification of conduction isthmus (CI) and focal origin sites2020-01-01T00:00:00Z2020 Jun2025-04-19T23:04:18.604Z2025-04-19T23:04:18.604ZS-EPMC73839703222753010.1111/jce.14457