In nonlinear US propagation, the B/A parameter allow to quantify the nonlinear distortion of the US pulse and the apparition of the different harmonics. Previous studies highlighted the interest of the nonlinear parameter in tissue characterization or parametric imaging. In this paper, an extended comparative method (ECM) is used to image the nonlinear parameter of in vitro porcine liver. The nonlinear parameter is imaged before and after a high intensity focused ultrasound (HIFU) treatment. The resulting maps highlight the region of the lesion and show the potential of B/A imaging in HIFU applications.

Nonlinear parameter imaging to characterize HIFU ablation: Preliminary in vitro results in porcine liver / F. Varray; J. Chenot; O. Basset; P. Tortoli; D. Melodelima; C. Cachard. - ELETTRONICO. - (2011), pp. 1361-1363. (Intervento presentato al convegno IEEE ULtrasonics Symposium tenutosi a Orlando (FL) - USA nel Ottobre 2011) [10.1109/ULTSYM.2011.0336].

Nonlinear parameter imaging to characterize HIFU ablation: Preliminary in vitro results in porcine liver

VARRAY, FRANCOIS;TORTOLI, PIERO;
2011

Abstract

In nonlinear US propagation, the B/A parameter allow to quantify the nonlinear distortion of the US pulse and the apparition of the different harmonics. Previous studies highlighted the interest of the nonlinear parameter in tissue characterization or parametric imaging. In this paper, an extended comparative method (ECM) is used to image the nonlinear parameter of in vitro porcine liver. The nonlinear parameter is imaged before and after a high intensity focused ultrasound (HIFU) treatment. The resulting maps highlight the region of the lesion and show the potential of B/A imaging in HIFU applications.
2011
2011 IEEE International Ultrasonics Symposium
IEEE ULtrasonics Symposium
Orlando (FL) - USA
Ottobre 2011
F. Varray; J. Chenot; O. Basset; P. Tortoli; D. Melodelima; C. Cachard
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/787013
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