title: Integrative haptic and visual interaction for simulation of PMMA injection during vertebroplasty.
abstract: In vertebroplasty, physician relies on both sight and feel to properly place the bone needle through various tissue types and densities, and to help monitor the injection of PMMA or cement into the vertebra. Incorrect injecting and reflux of the PMMA into areas where it should not go can result in detrimental clinical complication. This paper focuses on the human-computer interaction for simulating PMMA injection in our virtual spine workstation. Fluoroscopic images are generated from the CT patient volume data and simulated volumetric flow using a time varying 4D volume rendering algorithm. The user's finger movement is captured by a data glove. Immersion CyberGrasp is used to provide the variable resistance felt during injection by constraining the user's thumb. Based on our preliminary experiments with our interfacing system comprising simulated fluoroscopic imaging and haptic interaction, we found that the former has a larger impact on the user's control during injection.
authors.affiliation: Department of Mechanical Engineering, National University of Singapore. mpecck@nus.edu.sg
authors.forename: Chee-Kong
authors.initials: CK
authors.lastname: Chui
authors.forename: Jeremy
authors.initials: J
authors.lastname: Teo
authors.forename: Zhenlan
authors.initials: Z
authors.lastname: Wang
authors.forename: Jackson
authors.initials: J
authors.lastname: Ong
authors.forename: Jing
authors.initials: J
authors.lastname: Zhang
authors.forename: Kuan-Ming
authors.initials: KM
authors.lastname: Si-Hoe
authors.forename: Sim-Heng
authors.initials: SH
authors.lastname: Ong
authors.forename: Chye-Hwang
authors.initials: CH
authors.lastname: Yan
authors.forename: Shih-Chang
authors.initials: SC
authors.lastname: Wang
authors.forename: Hee-Kit
authors.initials: HK
authors.lastname: Wong
authors.forename: James H
authors.initials: JH
authors.lastname: Anderson
authors.forename: Swee-Hin
authors.initials: SH
authors.lastname: Teoh
mesh_terms: D003198:Computer Simulation; D007267:Injections; D009048:Motor Skills; D019904:Polymethyl Methacrylate / Q000008:administration & dosage*; D013131:Spine / Q000601:surgery*; D014481:United States
chemical_list: D019904:Polymethyl Methacrylate