Abstract
Computational models for liver deformation are usually performed without considering intrahepatic vasculatures. The major hurdle is the computational cost when deforming the liver and its vessels simultaneously. In this paper we introduce a numerical method containing a combined constrained constructive optimisation (CCO) algorithm and host mesh fitting (HMF) algorithm. While the CCO algorithm is used to generate a large liver vascular network, the HMF algorithm morphs hepatic structure within a host mesh. This technique is applied to the liver of the Visible Man (VM), where total 16,300 vessels are generated to extend the 84 digitised portal and hepatic veins in the VM liver. The liver deformation due to respiration effects and heart beats is simulated in real-time (35 Hz) and matched with the video sequence of an endovascular Trans-Arterial Chemo Embolization (TACE) procedure. In conclusion an efficient method for morphing a virtual liver containing large vasculatures is proposed, and may have applications in chemotherapy and endovascular simulations.
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Berg, M., Zhang, C., Ho, H. (2020). Real-Time Morphing of the Visible Man Liver with Intrahepatic Vasculatures. In: Cree, M., Huang, F., Yuan, J., Yan, W. (eds) Pattern Recognition. ACPR 2019. Communications in Computer and Information Science, vol 1180. Springer, Singapore. https://doi.org/10.1007/978-981-15-3651-9_14
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DOI: https://doi.org/10.1007/978-981-15-3651-9_14
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