title: Towards an augmented ultrasound guided spinal needle insertion system.
abstract: We propose a haptic-based simulator for ultrasound-guided percutaneous spinal interventions. The system is composed of a haptic device to provide force feedback, a camera system to display video and augmented computed tomography (CT) overlay, a finite element model for tissue deformation and US simulation from a CT volume. The proposed system is able to run a large finite element model at the required haptic rate for smooth force feedback, and uses haptic device position measurements for a steady response. The simulated US images from CT closely resemble the vertebrae images captured in vivo. This is the first report of a system that provides a training environment to couple haptic feedback with a tracked mannequin, and a CT volume overlaid on a visual feed of the mannequin.
authors.affiliation: Queen’s Univeristy. colin.sutherland@queensu.ca
authors.forename: Colin
authors.initials: C
authors.lastname: Sutherland
authors.forename: Keyvan
authors.initials: K
authors.lastname: Hashtrudi-Zaad
authors.forename: Purang
authors.initials: P
authors.lastname: Abolmaesumi
authors.forename: Parvin
authors.initials: P
authors.lastname: Mousavi
mesh_terms: D020342:Finite Element Analysis; D007278:Injections, Spinal / Q000295:instrumentation*; D009339:Needles; D014465:Ultrasonics