Intraoperative Navigation in Plastic Surgery with Augmented Reality: A Preclinical Validation Study

McGraw, J Reed; Wakim, Jonathan; Gallagher, Ryan S; Kovach, Stephen J.

doi:10.1097/prs.0000000000009758

Plastic &Amp; Reconstructive Surgery

2022

DOI: 10.1097/prs.0000000000009758

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Intraoperative Navigation in Plastic Surgery with Augmented Reality: A Preclinical Validation Study

J Reed McGraw¹,

Jonathan Wakim²,

Ryan S Gallagher³

et al.

Abstract: We want to emphasize that, at our institution, nerve surgery is not limited to the extremities. It also includes the torso and the head and neck. Our team strongly believes that it is logical to screen patients who present with nerve conditions for other nerve issues around the entire body to provide best patient care (if this is not part of the standard history and physical exam already). This applies to nerve compression as well as any other nerve problem identified. No body part should be excluded.

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2024

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A Feasibility Study of HoloLens Ear Image Guidance for Ear Reconstruction

Jiang,

Wang,

et al. 2024

Ann Plast Surg

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Background An ideal 3D cartilage framework and accurate anatomical location are the most important factors to carry out a satisfactory reconstruction of the ear. To streamline this process, we developed an augmented reality assistance system, HoloLens Ear Image Guidance, which is based on computed tomography (CT) data, tailor-made navigation kits to guide reconstruction, data processing software, and HoloLens hardware. The objective of this study is to verify its feasibility in a clinical setting. Methods This study first validated our system in healthy controls and then extrapolated data to test on patients with microtia. First, three healthy volunteers were recruited, and reconstructive navigation kits were made using 3D printing. CT data were collected for the head and neck and imported into the HoloLens Ear Image Guidance Application to generate a personalized 3D virtual ear image. Volunteers then wore the navigation kits while researchers observed them through the HoloLens to check accuracy, track delay, and view the ear image guide. Ten patients with unilateral microtia were recruited and CT data were collected, and reconstructive navigation kits were made to assist with surgery. The procedure was monitored to record the surgeon's experience wearing the HoloLens, the patients' complications associated with wearing navigation kit, and to measure the symmetry between the reconstructed ear and the reference counterpart. Results In control patients, the deviation between the virtual image and the real ear was less than 2.4% (±0.22%); the tracking delay was less than 1.26 s (±0.09 s), the display effect was good, and surgeons did not report discomfort or dizziness while wearing the HoloLens. Volunteers did not report any pain from holding the navigation reference in their mouth during the test. Following validation, the HoloLens-assisted procedures were not associated with surgeon discomfort or dizziness. No complications were noted in patients including injury to the oral mucosa. Symmetry between the reconstructed ear and the contralateral ear was noted to be satisfactory in HoloLens-assisted surgery. Conclusions The HoloLens Ear Image Guidance initially met clinical demands in registration accuracy, tracking speed, and subjective user experience, which can be used as the basis for continual software improvements and clinical application.

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A Feasibility Study of HoloLens Ear Image Guidance for Ear Reconstruction

Jiang,

Wang,

et al. 2024

Ann Plast Surg

View full text Add to dashboard Cite

show abstract

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Intraoperative Navigation in Plastic Surgery with Augmented Reality: A Preclinical Validation Study

Cited by 1 publication

References 3 publications

A Feasibility Study of HoloLens Ear Image Guidance for Ear Reconstruction

A Feasibility Study of HoloLens Ear Image Guidance for Ear Reconstruction

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