Accepted for/Published in: JMIR Perioperative Medicine
Date Submitted: Feb 29, 2020
Date Accepted: Aug 13, 2020
Warning: This is an author submission that is not peer-reviewed or edited. Preprints - unless they show as "accepted" - should not be relied on to guide clinical practice or health-related behavior and should not be reported in news media as established information.
Augmented Reality for Pre-Surgical Planning: Feasibility Study Comparing Computed Tomography-Derived Augmented Reality Holograms to a Standard PACS Viewer
ABSTRACT
Background:
Picture archiving and communication systems (PACS) are ubiquitously used to store, share, and view radiological information for pre-operative planning across surgical specialties. Although traditional PACS software has proven reliable in terms of display accuracy and ease of use, it remains limited by its inherent representation of medical imaging in two dimensions. Augmented reality (AR) systems present an exciting opportunity to complement traditional PACS capabilities.
Objective:
This study aims to evaluate the technical feasibility of using a novel AR platform, with holograms derived from computed tomography (CT) imaging, as a supplement to traditional PACS for pre-surgical planning in complex surgical procedures.
Methods:
Independent readers measured objects of predetermined, anthropomorphically correlated sizes using the circumference and angle tools of standard of care PACS software and a newly developed augmented reality pre-surgical planning system (ARPPS).
Results:
Measurements taken with the standard PACS and the ARPPS showed no statistically significant differences. Bland Altman analysis showed a mean difference of 0.08%, 95% CI [-4.20%, 4.36%] for measurements taken with PACS vs. ARPPS’ circumference tools and -1.84%, 95% CI [-6.17%, 2.14%] for measurements with the systems’ angle tools. Lin’s concordance correlation coefficient’s were 1.00 and 0.98 for the circumference and angle measurements, respectively, indicating almost perfect strength of agreement between ARPPS and PACS. Intra-class correlation showed no statistically significant difference between readers for either measurement tool on each system.
Conclusions:
ARPPS can be an effective, accurate, and precise means of 3-dimensional visualization and measurement of CT-derived holograms in the pre-surgical care timeline.
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