Simulation study on acoustic streaming and convective cooling in blood vessels during a high-intensity focused ultrasound thermal ablation - Inria - Institut national de recherche en sciences et technologies du numérique Access content directly
Journal Articles International Journal of Heat and Mass Transfer Year : 2012

Simulation study on acoustic streaming and convective cooling in blood vessels during a high-intensity focused ultrasound thermal ablation

Abstract

This study investigates the influence of blood vessels on temperature distribution during high-intensity focused ultrasound (HIFU) ablation of liver tumors. A three-dimensional acoustics-thermal-fluid coupling model is simulated to compute the temperature field in the hepatic cancerous region. The model is based on the linear Westervelt and bioheat equations as well as the non-linear Navier-Stokes equations for the liver parenchyma and blood vessels. The effect of acoustic streaming is also taken into account in the present HIFU simulation study. We found from this three-dimensional coupling study that in large blood vessel both the convective cooling and acoustic streaming can significantly change the temperature field and thermal lesion near blood vessels.
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Dates and versions

hal-00715205 , version 1 (06-07-2012)

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Maxim A. Solovchuk, Tony W.H. Sheu, Win-Li Lin, Ihyuan Kuo, Marc Thiriet. Simulation study on acoustic streaming and convective cooling in blood vessels during a high-intensity focused ultrasound thermal ablation. International Journal of Heat and Mass Transfer, 2012, 55 (4), pp.1261 - 1270. ⟨10.1016/j.ijheatmasstransfer.2011.09.023⟩. ⟨hal-00715205⟩
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