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|Title:||A biomechanical model for real-time simulation of PMMA injection with haptics|
Image guided surgery
Tactile and visual interfaces
|Source:||Lian, Z., Chui, C.-K., Teoh, S.-H. (2008-03). A biomechanical model for real-time simulation of PMMA injection with haptics. Computers in Biology and Medicine 38 (3) : 304-312. ScholarBank@NUS Repository. https://doi.org/10.1016/j.compbiomed.2007.10.009|
|Abstract:||We have developed a computationally efficient rheological model to simulate polymethylmethacrylate (PMMA) injection into cancellous bone during percutaneous vertebroplasty. The model employs the Hagen-Poiseuille law to predict pressure drop across a delivery cannula with viscoelastic changes of curing PMMA modeled via a time and shear-rate-dependant power law. The power law was derived based on dynamic rheological testing of curing PMMA samples. In conjunction with a branching-pipe geometrical model that is reconstructed from micro-computed tomography scans of cancellous bone for estimating pressure changes during PMMA flow in bone, the method provides a fast estimation of overall injection pressure, and, hence, the reaction force during manual PMMA injection. © 2007 Elsevier Ltd. All rights reserved.|
|Source Title:||Computers in Biology and Medicine|
|Appears in Collections:||Staff Publications|
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