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New research · Cardiology
European heart journal. Digital health · 23h
StudyEuropean heart journal. Digital health · 2026

Extended reality simulator for dynamic visualization and evaluation of stereotactic arrhythmia radioablation (STAR) treatment plans within RAVENTA trial.

Domenico Riggio, Joana Leitão, Melanie Grehn … Maria Francesca Spadea
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CardiologyStudy

Planning target volume can shift up to 17.5 mm during stereotactic arrhythmia radioablation.

Extended reality simulator for dynamic visualization and evaluation of stereotactic arrhythmia radioablation (STAR) treatment plans within RAVENTA trial.

Domenico Riggio et al. · European heart journal. Digital health · 2026
Background

Stereotactic arrhythmia radioablation (STAR) represents an emerging non-invasive treatment for therapy-refractory ventricular tachycardia.

Methods

The system was tested on three STAR patients enrolled in the RAVENTA trial.

up to 17.5 mm
Results
the maximum distance the heart treatment area's center moved during breathing
More results

We present a novel extended reality (XR) simulator designed to dynamically visualize STAR-relevant imaging and planning data.

The system integrates diastolic cardiac CT, respiratory-binned 4DCT, anatomical segmentations, EAM data, and phase-recomputed RT dose distributions within an XR environment.

More results

The resulting time-resolved volumetric dataset is rendered in XR, allowing clinicians to explore cardiac motion, visualize intramural dose deposition, and jointly assess target and organ-at-risk dynamics.

This supports qualitative evaluation of dose-motion interplay and interdisciplinary interpretation of intramural targets.

“
Conclusion

This proof-of-concept demonstrates the feasibility and potential clinical value of XR-based motion-aware dose visualization for STAR planning.

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