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October 8, 2018PLoS ONEOpen Access

3D holographic visualization of high-resolution myocardial scar on HoloLens was perceived as useful by the operator (rating 5.8/7) and mapping specialist (rating 5.5/7) during electroanatomic mapping in a swine model.

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Why the study?

Does 3D holographic visualization of myocardial scar on HoloLens provide useful guidance during electroanatomic mapping in a swine model of myocardial infarction?

Population

5 swines who underwent 180 minute balloon occlusion of the mid left anterior descending artery to create an…

Design

Preclinical

Follow-up

8 weeks post-infarction

Key result

3D holographic visualization of high-resolution myocardial scar on HoloLens was perceived as useful by the operator (rating 5.8/7) and mapping specialist (rating 5.5/7) during electroanatomic mapping in a swine model.

Authors

JJJihye JangCTCory M. TschabrunnMBMichael Barkagan

Discussion

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Overview

Hypothesis-generating for holographic scar guidance in preclinical EP mapping; human trials required before clinical consideration.

Structured PICO

Does 3D holographic visualization of myocardial scar on HoloLens provide useful guidance during electroanatomic mapping in a swine model of myocardial infarction?

P
Population
5 swines with controlled myocardial infarction underwent electroanatomic mapping to identify ventricular tachycardia substrate.
I
Intervention
3D holographic visualization of myocardial scar on the augmented reality HoloLens, generated using high-resolution 3D late gadolinium enhancement (LGE) cardiovascular magnetic resonance imaging.
O
Outcome
Perceived usefulness of the HoloLens 3D LGE during electroanatomic mapping, assessed independently by the operator and mapping specialist using a six-item usefulness scale (1-7 scale).

Three-dimensional holographic visualization of high-resolution LGE on HoloLens is feasible and perceived as useful by operators for assessing complex myocardial scar architecture during electrophysiology studies in a preclinical model.

Limitations

  • Pilot animal study not used for guiding ablation in real-time
  • Ablation success was not used as an endpoint
  • Questionnaire was performed by only one operator and one mapping specialist
  • Weight of the HoloLens (579 g) may hamper interventional applications
  • Ex-vivo imaging was only used for development phase and not tested during intervention
  • Procedural or fluoroscopy time was not measured.
  • Ex-vivo imaging was only used for the development phase and not tested during the intervention or evaluated for usefulness.

Cite This Study

Jang et al. (2018) studied Myocardial scar / Ventricular tachycardia (n=5). 3D holographic visualization of myocardial scar on HoloLens was evaluated on Perceived usefulness rating (1-7 scale). 3D holographic visualization of high-resolution myocardial scar on HoloLens was perceived as useful by the operator (rating 5.8/7) and mapping specialist (rating 5.5/7) during electroanatomic mapping in a swine model.

synapsesocial.com/papers/6a20adc9ac4c2e2edfeb85b7https://doi.org/10.1371/journal.pone.0205188
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