Integrative haptic and visual interaction for simulation of PMMA injection during vertebroplasty.
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.
Chui
Chee-Kong
CK
Department of Mechanical Engineering, National University of Singapore. mpecck@nus.edu.sg
Teo
Jeremy
J
Wang
Zhenlan
Z
Ong
Jackson
J
Zhang
Jing
J
Si-Hoe
Kuan-Ming
KM
Ong
Sim-Heng
SH
Yan
Chye-Hwang
CH
Wang
Shih-Chang
SC
Wong
Hee-Kit
HK
Anderson
James H
JH
Teoh
Swee-Hin
SH
D003198:Computer Simulation; D007267:Injections; D009048:Motor Skills; D019904:Polymethyl Methacrylate / Q000008:administration & dosage*; D013131:Spine / Q000601:surgery*; D014481:United States
D019904:Polymethyl Methacrylate