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Assessment and comparison of target registration accuracy in surgical instrument tracking technologies

Assessment and comparison of target registration accuracy in surgical instrument tracking technologies

Kategori
Tidsskriftspublikasjon
Sammendrag
Image guided surgery systems aim to support surgeons by providing reliable pre-operative and intra-operative imaging of the patient combined with the corresponding tracked instrument location. The image guidance is based on a combination of medical images, such as Magnetic Resonance Imaging (MRI), Computed Tomography (CT) and Ultrasonography (US), and surgical instrument tracking. For this reason, tracking systems are of great importance as they determine location and orientation of the equipment used by surgeons. Assessment of the accuracy of these tracking systems is hence of the utmost importance to determine how much error is introduced in image guided surgery only due to tracking inaccuracy. Thus, this study aimed to compare in a surgical Operating Room (OR) accuracy of the two most used tracking systems, Optical Tracking (OT) and Electromagnetic Tracking (EMT), in terms of Target Registration Error (TRE) assessment at multiple distances from the target position. Results of the experiments show that optical tracking performs more accurately in tracking the instrument tip than electromagnetic tracking in the experimental conditions. This was tested using a phantom designed for accuracy measurement in a wide variety of positions and orientations. Nevertheless, EMT remains a viable option for flexible instruments, due to its reliability in tracking without the need for line of sight.
Oppdragsgiver
  • EC/H2020 / 722068
Språk
Engelsk
Forfatter(e)
  • Teatini Andrea
  • Perez de Frutos Javier
  • Langø Thomas
  • Edwin Bjørn
  • Elle Ole Jacob
Institusjon(er)
  • Oslo universitetssykehus HF
  • Universitetet i Oslo
  • Norges teknisk-naturvitenskapelige universitet
  • SINTEF Digital / Helse
År
2018
Publisert i
IEEE Engineering in Medicine and Biology Society. Conference Proceedings
ISSN
1557-170X
Årgang
40th
Side(r)
1845 - 1848