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Title: Integrative haptic and visual interaction for simulation of PMMA injection during vertebroplasty
Authors: Ng, T.P. 
Hui, K.P. 
Tan, W.C. 
Keywords: Haptic rendering
Human-machine interface
PMMA injection
Virtual reality
Issue Date: 2006
Citation: Ng, T.P., Hui, K.P., Tan, W.C. (2006). Integrative haptic and visual interaction for simulation of PMMA injection during vertebroplasty. Studies in Health Technology and Informatics 119 : 96-98. ScholarBank@NUS Repository.
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 im ages 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. © 2006 The authors. All rights reserved.
Source Title: Studies in Health Technology and Informatics
ISBN: 1586035835
ISSN: 09269630
Appears in Collections:Staff Publications

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