Optical Neuronavigation without Rigid Head Fixation During Awake Surgery

Freyschlag, Christian F.; Kerschbaumer, Johannes; Eisner, Wilhelm; Pinggera, Daniel; Brawanski, Konstantin; Petr, Ondra; Bauer, Marlies; Grams, Astrid; Bodner, Thomas; Seiz, Marcel; Thomé, Claudius

doi:10.1016/j.wneu.2016.10.091

Cited by 4 publications

(2 citation statements)

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“…In Image Guided Surgery (IGS), instrument tracking technologies are of paramount importance as they provide reliable information regarding position and orientation of surgical instruments and are also used to navigate the surgeon throughout the procedure. These technologies have been commonly used in neurosurgical applications [1]. However, in the past decade, application of IGS has expanded also to other surgical procedures, such as endoscopic sinus surgery [2] and laparoscopic nephrectomy [3].…”

Section: Introductionmentioning

confidence: 99%

“…where x is an arbitrary target point, N the number of markers, dk the distance x from each axis k, fk the RMS of the distance and FLE stands for Fiducial Localization Error, which is a distance between a marker and its measured position [10]. TRE can be measured using a theoretical approach through (1) or via direct measurement using a phantom [11]. For this study, a direct measurement approach using a phantom was preferred over the theoretical approach to provide results closer to those of a realistic surgical scenario.…”

Section: Introductionmentioning

confidence: 99%

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

Teatini

Langø

et al. 2018

2018 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)

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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.

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Section: Introductionmentioning

confidence: 99%