Phantom-based prospective analysis of the accuracy of photo registration technology in electromagnetic navigation of the frontal skull base

Schilke P, Anderssohn S, Tziridis K, Mantsopoulos K, Mueller S, Sievert M, Gostian AO, Iro H, Bohr C, Traxdorf M (2022)


Publication Type: Journal article

Publication year: 2022

Journal

Book Volume: 26

Pages Range: 1674-1682

Journal Issue: 5

DOI: 10.26355/eurrev_202203_28236

Abstract

OBJECTIVE: This prospective study compared the accuracy of two different company-specific registration methods (Fiagon GmbH, Hennigsdorf, Germany) in the electromagnetic navigation of the frontal skull base. A newly developed photo registration technology (Fiagon tracey©) promises an increase in accuracy and user-friendliness, but there is no phantom-based prospective study comparing the new method with the classic approach of tactile surface registration. MATERIALS AND METHODS: A phantom skull was prepared with 27 markers in the sagittal, axial and coronary planes, and their reference coordinates were determined using a navigational CT (low dose, slice 0.6 mm). Subsequently, 20 runs of automatic photo registration and tactile surface registration were carried out, and the resulting marker coordinates were compared with the reference coordinates. The target registration error (TRE) of the 27 markers was assessed and compared between the two methods using a 2-factor ANOVA with repeated measures. RESULTS: The mean TRE using surface registration was 1.97 mm ± 0.57, while the mean TRE of the automatic photo registration was 1.54 mm ± 0.24 (p < 0.001). In a subgroup analysis limited to markers in anatomical regions of clinical relevance in terms of paranasal sinus surgery, the mean TRE for the photo registration procedure can even be reduced to 1.29 mm (± 0.43) compared to tactile registration (1.80 mm; ±0.50; p=0.01). CONCLUSIONS: Photo registration is a promising new technology in the field of electromagnetic navigation in paranasal sinus surgery. This prospective phantom-based study showed that the photo registration method achieves a significantly lower target registration error (1.29 mm) compared to the surface-based tactile registration procedure (1.80 mm).

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How to cite

APA:

Schilke, P., Anderssohn, S., Tziridis, K., Mantsopoulos, K., Mueller, S., Sievert, M.,... Traxdorf, M. (2022). Phantom-based prospective analysis of the accuracy of photo registration technology in electromagnetic navigation of the frontal skull base. European Review for Medical and Pharmacological Sciences, 26(5), 1674-1682. https://doi.org/10.26355/eurrev_202203_28236

MLA:

Schilke, Paul, et al. "Phantom-based prospective analysis of the accuracy of photo registration technology in electromagnetic navigation of the frontal skull base." European Review for Medical and Pharmacological Sciences 26.5 (2022): 1674-1682.

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