5/1/2023 0 Comments Polaris digital wrench crack![]() ![]() The library of DRFs offers a useful resource for surgical navigation research and could be extended to other tracking systems and alternative design constraints.īiomedical researchers developing new surgical navigation systems often encounter a basic limitation with dynamic reference frames (DRFs): there are a limited number of sources for such tools and a limited number of designs available. ![]() FRE was 0.15 ± 0.03 mm, and TRE in a CT head phantom was 0.96 ± 0.5 mm, both equivalent to the reference. Pivot tests showed calibration error ( mean ± std ) = 0.46 ± 0.1 mm, indistinguishable from the reference. A library of 10 such groups, each with 6 to 10 DRFs, was produced and tracking performance was validated in comparison to a standard commercially available reference, including pivot calibration, fiducial registration error (FRE), and target registration error (TRE). An algorithm was developed to create new DRF designs consistent with intra- and intertool design constraints and convert to computer-aided design (CAD) files suitable for three-dimensional printing. This work presents the design and validation of a large, open-source library of DRFs compatible with passive, single-face tracking systems, such as Polaris stereoscopic infrared trackers (NDI, Waterloo, Ontario). Dynamic reference frames (DRFs) are a common component of modern surgical tracking systems however, the limited number of commercially available DRFs poses a constraint in developing systems, especially for research and education. ![]()
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