Catheter insertion simulation with co-registered direct volume rendering and haptic feedback
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Data
2000-01
Autori
Gobbetti, Enrico
Tuveri, Massimiliano
Zanetti, Gianluigi
Zorcolo, Antonio
Titolo del periodico
ISSN
Titolo del volume
Editore
IOS
Abstract
We have developed an experimental catheter insertion simulation system supporting head-tracked stereoscopic viewing of volumetric anatomic reconstructions registered with direct haptic 3D interaction. The system takes as input data acquired with standard medical imaging modalities and regards it as a visual and haptic environment whose parameters are interactively defined using look-up tables. The system's display, positioned like a surgical table, provide a realistic impression of looking down at the patient. Measuring head motion via a six degrees-of-freedom head tracker, good positions to observe the anatomy and identify the catheter insertion point are quickly established with simple head motion. By generating appropriate stereoscopic images and co-registering physical and virtual spaces beforehand, volumes appear at fixed physical positions and it is possible to control catheter insertion via direct interaction with a PHANToM haptic device. During the insertion procedure, the system provides perception of the effort of penetration and deviation inside the traversed tissues. Semi-transparent volumetric rendering augment the sensory feedback with the visual indication of the inserted catheter position inside the body.
Descrizione
Keywords
3D interaction , PHANToM device , 3D stereoscopic visualization system