Evidence map›Paper›PMID 39758009›Full record

Observational studyCirculation2025

Personalized Heart Digital Twins Detect Substrate Abnormalities in Scar-Dependent Ventricular Tachycardia.

Michael C Waight, Adityo Prakosa, Anthony C Li, Nick Bunce, Anna Marciniak, Natalia A Trayanova, Magdi M Saba

Registry-linked trialAbstract readObservational Study
In one paragraph

Observational study in Circulation, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04632394 (Can MRI-based Computational Modelling of the Heart be Used to Predict Critical Substrate in Scar-dependent Ventricular Tachycardia Ablation?), which is not on this map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT04632394 completednot on this map

Can MRI-based Computational Modelling of the Heart be Used to Predict Critical Substrate in Scar-dependent Ventricular Tachycardia Ablation?

TypeobservationalSponsorSt George's, University of LondonRan2021 to 2024Enrolled18ConditionsVentricular TachycardiaArmsGeneration of computational model from cardiac MRI., VT ablation
3 · Its place in the literature

Who cites it

27 citing papers in PubMed.

  1. Article
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  4. Review
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  13. Efficacy and safety of ventricular tachycardia ablation versus antiarrhythmics in ischemic cardiomyopathy: a network meta-analysis.Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing · 2026
    Article
  14. Review
  15. Review
  16. Review
  17. Review
  18. Digital twins come to the life sciences.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  19. Article
  20. The Integral Role of Cardiac Imaging in the Electrophysiology Field.The Journal of innovations in cardiac rhythm management · 2025
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors.

Michael C WaightCity St. George's, University of London, UK (M.C.W., A.C.L., M.M.S.).ORCID 0000-0001-8714-5808
Adityo PrakosaAlliance for Cardiovascular Diagnostic and Treatment Innovation, Johns Hopkins University, Baltimore, MD (M.C.W., A.P., N.A.T.).ORCID 0000-0002-1590-0322
Anthony C LiCity St. George's, University of London, UK (M.C.W., A.C.L., M.M.S.).ORCID 0000-0001-5516-1117
Nick BunceSt. George's University Hospitals NHS Foundation Trust, London, UK (A.C.L., N.B., A.M., M.M.S.).
Anna MarciniakSt. George's University Hospitals NHS Foundation Trust, London, UK (A.C.L., N.B., A.M., M.M.S.).
Natalia A Trayanova *Alliance for Cardiovascular Diagnostic and Treatment Innovation, Johns Hopkins University, Baltimore, MD (M.C.W., A.P., N.A.T.).ORCID 0000-0002-8661-063X
Magdi M Saba *City St. George's, University of London, UK (M.C.W., A.C.L., M.M.S.).ORCID 0000-0002-0134-4214

Funding

Artificial intelligence analysis of atrial remodeling evolution in patients with atrial fibrillation: Towards optimal ablation strategiesR01HL166759 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI Eugene Kholmovski, David Spragg · 2023 to 2026
$3.2M
Infarct-related Ventricular Tachycardia Mechanisms: From Micro to ClinicalR01HL142496 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI TRAYANOVA, NATALIA A. · 2019 to 2022
$3.1M
Heart Digital Twin Analysis of Arrhythmias due to Infiltrating AdiposityR01HL174440 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI NATALIA A. TRAYANOVA · 2024 to 2026
$2.1M
NHLBI NIH HHS R01 HL142496NHLBI NIH HHS R01 HL166759NHLBI NIH HHS R01 HL174440
6 · The paper itself

Abstract

backgroundCurrent outcomes from catheter ablation for scar-dependent ventricular tachycardia (VT) are limited by high recurrence rates and long procedure durations. Personalized heart digital twin technology presents a noninvasive method of predicting critical substrate in VT, and its integration into clinical VT ablation offers a promising solution. The accuracy of the predictions of digital twins to detect invasive substrate abnormalities is unknown. We present the first prospective analysis of digital twin technology in predicting critical substrate abnormalities in VT.

methodsHeart digital twin models were created from 18 patients with scar-dependent VT undergoing catheter ablation. Contrast-enhanced cardiac magnetic resonance images were used to reconstruct finite-element meshes, onto which regional electrophysiological properties were applied. Rapid-pacing protocols were used to induce VTs and to define the VT circuits. Predicted optimum ablation sites to terminate all VTs in the models were identified. Invasive substrate mapping was performed, and the digital twins were merged with the electroanatomical map. Electrogram abnormalities and regions of conduction slowing were compared between digital twin-predicted sites and nonpredicted areas.

resultsElectrogram abnormalities were significantly more frequent in digital twin-predicted sites compared with nonpredicted sites (468/1029 [45.5%] versus 519/1611 [32.2%];

conclusionsDigital twin-predicted sites display a higher prevalence of abnormal and prolonged electrograms compared with nonpredicted sites and accurately identify regions of conduction slowing. Digital twin technology may help improve substrate-based VT ablation. REGISTRATION: URL: https://www.clinicaltrials.gov; Unique identifier: NCT04632394.

Indexed as

CicatrixTachycardia, VentricularAdultAgedCatheter AblationElectrophysiologic Techniques, CardiacFemaleHumansMagnetic Resonance ImagingMaleMiddle AgedProspective Studiescatheter ablationelectrophysiologic techniques, cardiacmagnetic resonance imagingtachycardia, ventricular

Identifiers

PMID39758009
PMCPMC11987040

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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.