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Article

The Wearable VOSTARS System for Augmented Reality-Guided Surgery: Preclinical Phantom Evaluation for High-Precision Maxillofacial Tasks

1
eDIMES Lab—Laboratory of Bioengineering, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, 40138 Bologna, Italy
2
Information Engineering Department, University of Pisa, 56126 Pisa, Italy
3
Maxillofacial Surgery Unit, Department of Biomedical and Neuromotor Sciences and S. Orsola-Malpighi Hospital, University of Bologna, 40138 Bologna, Italy
*
Author to whom correspondence should be addressed.
J. Clin. Med. 2020, 9(11), 3562; https://doi.org/10.3390/jcm9113562
Received: 1 October 2020 / Revised: 29 October 2020 / Accepted: 3 November 2020 / Published: 5 November 2020
(This article belongs to the Special Issue Innovation in Head and Neck Reconstructive Surgery)
Background: In the context of guided surgery, augmented reality (AR) represents a groundbreaking improvement. The Video and Optical See-Through Augmented Reality Surgical System (VOSTARS) is a new AR wearable head-mounted display (HMD), recently developed as an advanced navigation tool for maxillofacial and plastic surgery and other non-endoscopic surgeries. In this study, we report results of phantom tests with VOSTARS aimed to evaluate its feasibility and accuracy in performing maxillofacial surgical tasks. Methods: An early prototype of VOSTARS was used. Le Fort 1 osteotomy was selected as the experimental task to be performed under VOSTARS guidance. A dedicated set-up was prepared, including the design of a maxillofacial phantom, an ad hoc tracker anchored to the occlusal splint, and cutting templates for accuracy assessment. Both qualitative and quantitative assessments were carried out. Results: VOSTARS, used in combination with the designed maxilla tracker, showed excellent tracking robustness under operating room lighting. Accuracy tests showed that 100% of Le Fort 1 trajectories were traced with an accuracy of ±1.0 mm, and on average, 88% of the trajectory’s length was within ±0.5 mm accuracy. Conclusions: Our preliminary results suggest that the VOSTARS system can be a feasible and accurate solution for guiding maxillofacial surgical tasks, paving the way to its validation in clinical trials and for a wide spectrum of maxillofacial applications. View Full-Text
Keywords: augmented reality; 3D technologies; head-mounted display; virtual planning; 3D printing; maxillofacial surgery augmented reality; 3D technologies; head-mounted display; virtual planning; 3D printing; maxillofacial surgery
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Figure 1

  • Supplementary File 1:

    ZIP-Document (ZIP, 28998 KiB)

  • Externally hosted supplementary file 1
    Doi: 10.5281/zenodo.4060344
    Link: https://zenodo.org/record/4060344#.X3UABmgzZPY
    Description: Video S1: Execution of Le Fort 1 osteotomy under VOSTARS guidance. Video S2: Augmentation of anatomical facial structures using the VOSTARS device
MDPI and ACS Style

Cercenelli, L.; Carbone, M.; Condino, S.; Cutolo, F.; Marcelli, E.; Tarsitano, A.; Marchetti, C.; Ferrari, V.; Badiali, G. The Wearable VOSTARS System for Augmented Reality-Guided Surgery: Preclinical Phantom Evaluation for High-Precision Maxillofacial Tasks. J. Clin. Med. 2020, 9, 3562. https://doi.org/10.3390/jcm9113562

AMA Style

Cercenelli L, Carbone M, Condino S, Cutolo F, Marcelli E, Tarsitano A, Marchetti C, Ferrari V, Badiali G. The Wearable VOSTARS System for Augmented Reality-Guided Surgery: Preclinical Phantom Evaluation for High-Precision Maxillofacial Tasks. Journal of Clinical Medicine. 2020; 9(11):3562. https://doi.org/10.3390/jcm9113562

Chicago/Turabian Style

Cercenelli, Laura, Marina Carbone, Sara Condino, Fabrizio Cutolo, Emanuela Marcelli, Achille Tarsitano, Claudio Marchetti, Vincenzo Ferrari, and Giovanni Badiali. 2020. "The Wearable VOSTARS System for Augmented Reality-Guided Surgery: Preclinical Phantom Evaluation for High-Precision Maxillofacial Tasks" Journal of Clinical Medicine 9, no. 11: 3562. https://doi.org/10.3390/jcm9113562

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