Home > News > 27/Evaluation of ECG imaging to map haemodynamically stable and unstable ventricular arrhythmias
Arrhythmia
Read Time: < 1 min

27/Evaluation of ECG imaging to map haemodynamically stable and unstable ventricular arrhythmias

Published Online: October 2nd 2008 European Journal of Arrhythmia & Electrophysiology. 2019;5(Suppl. 1):abstr27
Authors: AJ Graham (Presenting Author) - Cardiac EP Barts Heart Centre, Islington, UK; M Orini - Cardiac EP Barts Heart Centre, London, UK; G Dhillon - Cardiac EP Barts Heart Centre, London, UK; N Srinivasan - Cardiac EP Barts Heart Centre, London, UK; H Daw - Cardiac EP Barts Heart Centre, London, UK; A Cambridge - Cardiac EP Barts Heart Centre, London, UK; T Chow - Cardiac EP Barts Heart Centre, London, UK; M Earley - Cardiac EP Barts Heart Centre, London, UK; S Sporton - Cardiac EP Barts Heart Centre, London, UK; M Dhinoja - Cardiac EP Barts Heart Centre, London, UK; R Hunter - Cardiac EP Barts Heart Centre, London, UK; R Schilling - Cardiac EP Barts Heart Centre, London, UK; PD Lambiase - Cardiac EP Barts Heart Centre, London, UK
Quick Links:
Article
Article Information
Article:

Background: ECG Imaging (ECGI) has been used to guide treatment of ventricular ectopy and arrhythmias. However, the accuracy of ECGI in localising the origin of arrhythmias during catheter ablation of ventricular tachycardia (VT) in structurally abnormal hearts remains to be fully validated.

Methods: During catheter ablation of VT simultaneous mapping was performed using electro-anatomical mapping (EAM) (CARTO, Biosense-Webster) and ECGI (CardioInsight™, Medtronic) in 18 patients. Sites of entrainment, pace-mapping and termination during ablation were used to define the VT site of origin (SoO). Distance between SoO and areas of earliest activation on ECGI (sites within earliest 5% of activation time) were measured using co-registered geometries from both systems. The accuracy of ECGI versus a 12-lead surface ECG algorithm was compared.

Results: A total of 29 VTs were available for comparison. Distance between SoO and area of earliest activation in ECGI was 9.1 (0.0–15.5) mm (median, first-third quartile). This was lower for pacemapped VTs versus those entrained/terminated with ablation (p=0.036) and not different between ischaemic versus non-ischaemic cardiomyopathy (p=0.063) or between septal versus non-septal VTs (p=0.849). ECGI mapped VT sites of origin onto the correct AHA segment with higher accuracy than a validated 12-lead ECG algorithm (83.3% versus 38.9%, p=0.015). Example of VT with whole diastolic pathway mapped on EAM and ECGI early activating site can be seen in the figure.

Article Information:

Further Resources

Share this Article
Related Content In Arrhythmia
  • Copied to clipboard!
    accredited arrow-downarrow_leftarrow-right-bluearrow-right-dark-bluearrow-right-greyarrow-right-orangearrow-right-whitearrow-right-bluearrow-up-orangeavatarcalendarchevron-down consultant-pathologist-nurseconsultant-pathologistcrosscrossdownloademailexclaimationfeedbackfiltergraph-arrowinterviewslinkmdt_iconmenumore_dots nurse-consultantpadlock patient-advocate-pathologistpatient-consultantpatientperson pharmacist-nurseplay_buttonplay-colour-tmcplay-colourAsset 1podcastprinter scenerysearch share single-doctor social_facebooksocial_googleplussocial_instagramsocial_linkedin_altsocial_linkedin_altsocial_pinterestlogo-twitter-glyph-32social_youtubeshape-star (1)tick-bluetick-orangetick-whiteticktimetranscriptup-arrowwebinar Department Location NEW TMM Corporate Services Icons-07NEW TMM Corporate Services Icons-08NEW TMM Corporate Services Icons-09NEW TMM Corporate Services Icons-10NEW TMM Corporate Services Icons-11NEW TMM Corporate Services Icons-12Salary £ TMM-Corp-Site-Icons-01TMM-Corp-Site-Icons-02TMM-Corp-Site-Icons-03TMM-Corp-Site-Icons-04TMM-Corp-Site-Icons-05TMM-Corp-Site-Icons-06TMM-Corp-Site-Icons-07TMM-Corp-Site-Icons-08TMM-Corp-Site-Icons-09TMM-Corp-Site-Icons-10TMM-Corp-Site-Icons-11TMM-Corp-Site-Icons-12TMM-Corp-Site-Icons-13TMM-Corp-Site-Icons-14TMM-Corp-Site-Icons-15TMM-Corp-Site-Icons-16TMM-Corp-Site-Icons-17TMM-Corp-Site-Icons-18TMM-Corp-Site-Icons-19TMM-Corp-Site-Icons-20TMM-Corp-Site-Icons-21TMM-Corp-Site-Icons-22TMM-Corp-Site-Icons-23TMM-Corp-Site-Icons-24TMM-Corp-Site-Icons-25TMM-Corp-Site-Icons-26TMM-Corp-Site-Icons-27TMM-Corp-Site-Icons-28TMM-Corp-Site-Icons-29TMM-Corp-Site-Icons-30TMM-Corp-Site-Icons-31TMM-Corp-Site-Icons-32TMM-Corp-Site-Icons-33TMM-Corp-Site-Icons-34TMM-Corp-Site-Icons-35TMM-Corp-Site-Icons-36TMM-Corp-Site-Icons-37TMM-Corp-Site-Icons-38TMM-Corp-Site-Icons-39TMM-Corp-Site-Icons-40TMM-Corp-Site-Icons-41TMM-Corp-Site-Icons-42TMM-Corp-Site-Icons-43TMM-Corp-Site-Icons-44TMM-Corp-Site-Icons-45TMM-Corp-Site-Icons-46TMM-Corp-Site-Icons-47TMM-Corp-Site-Icons-48TMM-Corp-Site-Icons-49TMM-Corp-Site-Icons-50TMM-Corp-Site-Icons-51TMM-Corp-Site-Icons-52TMM-Corp-Site-Icons-53TMM-Corp-Site-Icons-54TMM-Corp-Site-Icons-55TMM-Corp-Site-Icons-56TMM-Corp-Site-Icons-57TMM-Corp-Site-Icons-58TMM-Corp-Site-Icons-59TMM-Corp-Site-Icons-60TMM-Corp-Site-Icons-61TMM-Corp-Site-Icons-62TMM-Corp-Site-Icons-63TMM-Corp-Site-Icons-64TMM-Corp-Site-Icons-65TMM-Corp-Site-Icons-66TMM-Corp-Site-Icons-67TMM-Corp-Site-Icons-68TMM-Corp-Site-Icons-69TMM-Corp-Site-Icons-70TMM-Corp-Site-Icons-71TMM-Corp-Site-Icons-72