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

Author

Varray, François ; Chenot, Jérémy ; Basset, Olivier ; Tortoli, Piero ; Melodelima, David ; Cachard, Christian

Author_Institution

CREATIS, Univ. de Lyon, Villeurbanne, France

fYear

2011

fDate

18-21 Oct. 2011

Firstpage

1361

Lastpage

1363

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.

Keywords

biological tissues; biomedical ultrasonics; liver; ultrasonic propagation; B-A imaging; B-A parameter; HIFU ablation; HIFU applications; HIFU treatment; extended comparative method; high intensity focused ultrasound treatment; in vitro porcine liver; lesion region; nonlinear distortion; nonlinear parameter imaging; nonlinear ultrasound propagation; preliminary in vitro results; tissue characterization; ultrasound pulse; Electronic countermeasures; Frequency conversion; Imaging; Lesions; Liver; Medical treatment; Ultrasonic imaging; HIFU; Nonlinear parameter; tissue characterization;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium (IUS), 2011 IEEE International

Conference_Location

Orlando, FL

ISSN

1948-5719

Print_ISBN

978-1-4577-1253-1

Type

conf

DOI

10.1109/ULTSYM.2011.0336

Filename

6293206