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A Computational study on the effect of different design parameters on the accuracy of biopsy procedure | ||
Journal of Computational Applied Mechanics | ||
مقاله 10، دوره 46، شماره 2، مهر 2015، صفحه 221-231 اصل مقاله (430.59 K) | ||
نوع مقاله: Research Paper | ||
شناسه دیجیتال (DOI): 10.22059/jcamech.2015.55501 | ||
نویسندگان | ||
Zahra Matin Ghahfarokhi1؛ Mehdi Salmani Tehrani1؛ Mahdi Moghimi Zand* 2؛ Mojtaba Mahzoon3 | ||
1Department of Mechanical Engineering, Isfahan University of Technology, Isfahan, Iran | ||
2School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran, Iran | ||
3Department of Mechanical Engineering, University of Shiraz, Shiraz, Iran | ||
چکیده | ||
Needle insertion is a minimally invasive technique in diagnosing and treating tumors. However, to perform a surgery accurately, the tissue should have minimum amount of displacement during needle insertion so that it reaches the target tissue. Therefore, the tissue membrane has to move less to decrease rupturing under the membrane. In this study, the effect of different design parameters on displacement of the point where a puncture occurs during needle insertion is investigated. Finite element simulation is used to study the effect of mechanical properties of the tissues (hyper-viscoelastic coefficients) and geometric parameters of the needle (fillet radius, needle tip angle and needle diameter) and friction coefficient. To validate the simulations, the results were compared with previously published results in the literature, i.e. the hyper-viscoelastic properties of brain tissue in neurosurgical procedure and the hyper-viscoelastic properties of liver tissue. The results show that the hyper-viscoelastic constitutive is a suitable model to describe soft tissue behavior. Also, the mechanical properties of the tissue and needle velocity are effective on the displacement of the tissue's membrane and therefore in surgery accuracy. | ||
کلیدواژهها | ||
finite element simulation؛ hyper-viscoelastic model؛ needle insertion؛ soft tissue | ||
مراجع | ||
1. Goksel O., Salcudean S.E., P.Dimaio S., Rohling R., Morris J., 2005, 3D needle-tissue interaction simulation for prostate brachytherapy, Medical Image Computing and Computer-Assisted Intervention, MICCAI. 14. Han P., Ehmann K. (2013). Study of the effect of cannula rotation on tissue cutting for needle biopsy, Med Eng Phys 35: 1584-1590. 20. Mahvash M., Hayward V. (2001). Haptic rendering of cutting, a fracture mechanics approach. Haptics-e, Electron J Haptics Res 2(3): 1-12. | ||
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