Lafon C., Gelet A., Cathignol D., Prat F., Chapelon J.Y. «Interstitial and intracavitary therapeutic ultrasound» High intensity acoustic waves in modern technological and medical applications. Joint Workshop of Russian Acoustical Society (RAS) and French Acoustical Society (SFA). Special Session of the XVI Meeting of Russian Acoustical Society (Moscow. 14–18 November 2005), с. 30-35 (2005)

The non invasive nature of High Intensity Focused Ultrasound (HIFU) for thermal ablation of in-depth tumors is very promising and several medical devices are currently commercially available. Techniques using intracavitary or interstitial applicators have been proposed because extracorporeal HIFU techniques are not always suitable for deepseated tumors. Bones or gaseous pockets may indeed be located in the intervening tissue. The objective is to bring the ultrasound source as close as possible to the target through natural routes in order to minimize the effects of attenuation and phase aberration along the ultrasound pathway. Under these circumstances, it becomes possible to use higher frequency, thus increasing the ultrasonic absorption coefficient and resulting in more efficient heating of the treatment region. In contrast to extra-corporeal applicators, the design of intracavitary probes imposes additional constraints relative to size and ergonomy. When associated to modern imaging modalities, these minimally invasive therapeutic devices offer very promising options for cancer treatment.

Lasaygues P. «Imaging the shape of long bones using ultrasound tomography» High intensity acoustic waves in modern technological and medical applications. Joint Workshop of Russian Acoustical Society (RAS) and French Acoustical Society (SFA). Special Session of the XVI Meeting of Russian Acoustical Society (Moscow. 14–18 November 2005), с. 105-111 (2005)

In this paper, we investigate ultrasound measurement of the cortical thickness of child long bones. Due to the acoustic impedance mismatch between surrounding tissues and bone, the higher the frequency, the smaller the portion of energy going through and the lesser the resolution of the shaft. To estimate the cortical thickness, we propose ultrasonic tomography, with frequencies lower than those of conventional echography and especially adapted to the strong contrast medium. The ultrasonic tomographic imaging techniques produce cross-sectional images of the spatial distribution of some physical parameters of an object from scattered ultrasonic measures. The measurements are made for more or less dense sets of transmitter and receiver positions and of frequencies of the interrogating wave. We solved this inverse scattering problem by using a Born approximation, which leads to a simple and attractive linear relation between the object function and the scattered field, particularly in the far-field. This approach makes it possible, in principle, to reconstruct the object almost in real time for a large set of scattering data. We investigated wide-band acoustical tomography experimentally.

Зырянова А.В., Можаев В.Г., Laude V. «Теория краевой локализации собственных колебаний сфероидальной капли» Физическая акустика. Оптоакустика. Нелинейная акустика. Распространение и дифракция волн. Геоакустика. Сборник трудов 19 сессии Российского Акустического Общества и Сессии Научного совета РАН по акустике. Т.1, с. 277 (2007)

Sebaa N., Fellah Z.E.A., Depollier C., Lauriks W. «Direct and inverse scattering problem in cancellous bone: application of biot theory» High intensity acoustic waves in modern technological and medical applications. Joint Workshop of Russian Acoustical Society (RAS) and French Acoustical Society (SFA). Special Session of the XVI Meeting of Russian Acoustical Society (Moscow. 14–18 November 2005), с. 92-99 (2005)

In this paper direct and inverse scattering problems of ultrasonic pulses from cancellous bone are investigated. Reflection and transmission coefficients are derived for a slab of cancellous bone having an elastic frame using Biot’s theory. The inverse problem for waves transmitted by cancellous bone is solved at normal incidence. Experimental results for slow and fast waves transmitted through cancellous bone samples are given and compared with theoretical predictions.

Kim Byoung-Nam, Lee Kang Il , Yoon Suk Wang , Choi Bok Kyung , Didenkulov I.N. «Nonlinear parameter estimation in water-saturated sandy sediment with difference frequency acoustic waves» Физическая акустика. Нелинейная акустика. Распространение и дифракция волн. Геоакустика. Сборник трудов 15 сессии Российского акустического общества. Т. 1, с. 172 (2004)

Penelet G., Gusev V., Lotton P., Bruneau M. «Experimental and theoretical studies of nonlinear saturation processes in annular thermoacoustic prime movers» High intensity acoustic waves in modern technological and medical applications. Joint Workshop of Russian Acoustical Society (RAS) and French Acoustical Society (SFA). Special Session of the XVI Meeting of Russian Acoustical Society (Moscow. 14–18 November 2005), с. 65-74 (2005)

The present study gives a simplified analytical description of spontaneous generation and finite amplitude saturation of sound in annular thermoacoustic engines, and also provides comparison with experiments. The model includes the description of thermoacoustic amplification of sound (induced by interaction between an heterogeneously heated stack of solid plates and resonant gas oscillations), which accounts for the details of the temperature distribution in the whole thermoacoustic device. The saturation of the acoustic wave amplitude is described by taking into account both the reverse influence of the acoustic field on the temperature field, and the dissipation of acoustic power due to higher harmonics generation and minor losses (vortex generation). From the comparison between simulation results and experiments, it is demonstrated that the dynamical behavior observed in our experimental device is predominantly controlled by the effects of acoustic streaming and acoustically enhanced thermal conductivity tending not only to reduce the externally imposed temperature gradient along the stack, but also to change the shape of the temperature field in such a way that additional thermoacoustic amplification may occur.

Badiey M., Lynch J., Кацнельсон Б.Г., Пересёлков С.А. «Флуктуации звукового поля, вызванные внутренними волнами на океаническом шельфе. Теория и эксперимент (SWARM'95)» Доклады 10 научной школы-семинара академика Л. М. Бреховских "Акустика океана", совмещенной с 14 сессией Российского акустического общества, с. 11 (2004)

Григорьев В.А., Кацнельсон Б.Г., Badiey M., Lynch J. «Акустические эффекты, обусловленные взаимодействием мод при распространении звука в мелком море в присутствие внутренних солитонов» Акустические измерения и стандартизация. Электроакустика. Ультразвук и ультразвуковые технологии. Атмосферная акустика. Акустика океана. Сборник трудов 19 сессии Российского акустического общества. Т. 2., с. 183 (2007)