Int J Med Robot - Using a passive coordinate measurement arm for motion tracking of a rigid endoscope for augmented-reality image-guided surgery.

Tópicos

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Resumo

CKGROUND: One of the main sources of error in commercial surgical navigation systems is the tracking of surgical tools. Mainstream systems typically use optical or electromagnetic tracking technologies, which exhibit accuracies of the order of 1 mm. The objective of this study was to introduce a lightweight high-precision passive coordinate measurement arm into an augmented reality-based surgical navigation system to track a rigid endoscope.METHODS: A series of dry laboratory experiments were run to compare the tracking performance of an optical tracking device, a passive coordinate measurement arm and a hybrid set-up.RESULTS: The optical device displayed overlay errors in the range 1.5-3 mm. For the precision measurement arm, 96% of overlay errors were<1 mm. The hybrid set-up exhibited overlay errors in the range 0.8-1.5 mm.CONCLUSIONS: The reported experiments showed that a high-precision articulated measurement arm could be used as a motion-tracking device for surgical instruments in augmented-reality surgical navigation.

Resumo Limpo

ckground one main sourc error commerci surgic navig system track surgic tool mainstream system typic use optic electromagnet track technolog exhibit accuraci order mm object studi introduc lightweight highprecis passiv coordin measur arm augment realitybas surgic navig system track rigid endoscopemethod seri dri laboratori experi run compar track perform optic track devic passiv coordin measur arm hybrid setupresult optic devic display overlay error rang mm precis measur arm overlay error mm hybrid setup exhibit overlay error rang mmconclus report experi show highprecis articul measur arm use motiontrack devic surgic instrument augmentedr surgic navig

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