title: CT-integrated robot for interventional procedures: preliminary experiment and computer-human interfaces.
abstract: Pre-operative planning and intra-operative computer interfaces for minimally invasive interventions were investigated with an active robot integrated with a CT scanner. To test the robotic system, a biopsy study was performed using a pig. For pre-operative planning, a virtual needle was superimposed on axial slices and multiplanar reformatted views in correlation with the interventional field. The path of the virtual needle was sent to the robot's controller, and the robot's needle gripper moved into a position congruent with the planned path. Intra-operative controls were then used to drive the needle while keeping the interventionalist's hands out of the direct X-ray beam during CT fluoroscopy. After needle insertion, the imaged and virtual needles were shown to be sufficiently congruent.
authors.affiliation: Philips Medical Systems, Advanced Clinical Systems Group, Highland Heights, Ohio 44143, USA. jeffrey.yanof@cle.philips.com
authors.forename: J
authors.initials: J
authors.lastname: Yanof
authors.forename: J
authors.initials: J
authors.lastname: Haaga
authors.forename: P
authors.initials: P
authors.lastname: Klahr
authors.forename: C
authors.initials: C
authors.lastname: Bauer
authors.forename: D
authors.initials: D
authors.lastname: Nakamoto
authors.forename: A
authors.initials: A
authors.lastname: Chaturvedi
authors.forename: R
authors.initials: R
authors.lastname: Bruce
mesh_terms: D000818:Animals; D001707:Biopsy, Needle / Q000295:instrumentation*; D002138:Calibration; D003198:Computer Simulation; D012371:Robotics / Q000295:instrumentation*; D013552:Swine; D014057:Tomography, X-Ray Computed / Q000295:instrumentation* / Q000379:methods; D014584:User-Computer Interface