Citation: | LIU Chuang, LIU Li, ZHU Qiaomiao, LI Yanhao. Real-time monitoring of acoustic cavitation in high intensity focused ultrasound based on phase characteristics of transducer electrical signals[J]. ACTA ACUSTICA, 2023, 48(5): 1004-1011. DOI: 10.12395/0371-0025.2022113 |
Acoustic cavitation induced by high intensity focused ultrasound (HIFU) can accelerate the thermal ablation of the target tissue. However, real-time monitoring of acoustic cavitation caused by HIFU is an urgent problem to be solved. The phase characteristics of the electrical signal of the HIFU transducer are established to analyze the real-time monitoring of acoustic cavitation. Under different HIFU excitation voltages, experimental research about real-time monitoring of acoustic cavitation in isolated bovine heart tissue irradiated by HIFU has been carried out. In addition, the phase difference of driving electrical signal is compared with the grayscale change of the B-ultrasound image and change results of subharmonic and broadband noise detected by broadband hydrophone. The research results show that when acoustic cavitation occurs, the change of phase difference of driving electrical signal has good consistency with the change of subharmonic and broadband noise detected by hydrophone. By the change of phase difference, real-time and accurate monitoring of the duration of acoustic cavitation occurring in target tissue irradiated by HIFU can be achieved, which provides a promising solution for real-time monitoring of acoustic cavitation caused by HIFU.
[1] |
Xu Z, Fowlkes J B. A new strategy to enhance cavitational tissue erosion using a high-intensity, initiating sequence. IEEE Trans. Ultrason. Ferroelectr. Freq. Control, 2006; 53(8): 1412—1424 DOI: 10.1109/TUFFC.2006.1665098
|
[2] |
Zhou Y, Gao X W. Effect of hydrodynamic cavitation in the tissue erosion by pulsed high-intensity focused ultrasound (pHIFU). Phys. Med Biol., 2016; 61(18): 6651—6667 DOI: 10.1088/0031-9155/61/18/6651
|
[3] |
Wang M, Lei Y, Zhou Y. High-intensity focused ultrasound (HIFU) ablation by the frequency chirps: Enhanced thermal field and cavitation at the focus. Ultrasonics, 2019; 91: 134—149 DOI: 10.1016/j.ultras.2018.08.017
|
[4] |
Khokhlova V A, Fowlkes J B, Roberts W W, et al. Histotripsy methods in mechanical disintegration of tissue: Towards clinical applications. Int. J. Hyperthermia, 2015; 31(2): 145—162 DOI: 10.3109/02656736.2015.1007538
|
[5] |
Xu Z, Ludomirsky A, Eun L Y, et al. Controlled ultrasound tissue erosion. IEEE Trans. Ultrason. Ferroelectr. Freq. Control, 2004; 51(6): 726—736 DOI: 10.1109/TUFFC.2004.1304271
|
[6] |
Santos M A, Wu S K, Li Z, et al. Microbubble-assisted MRI-guided focused ultrasound for hyperthermia at reduced power levels. Int. J. Hyperthermia, 2018; 35(1): 599—611 DOI: 10.1080/02656736.2018.1514468
|
[7] |
Kopechek J A, Park E J, Zhang Y Z, et al. Cavitation-enhanced MR-guided focused ultrasound ablation of rabbit tumors in vivo using phase shift nanoemulsions. Phys. Med. Biol., 2014; 59(13): 3465—3481 DOI: 10.1088/0031-9155/59/13/3465
|
[8] |
Liu N, Khoo B, Zhang A. Study on the structure and behaviour of cavitation bubbles generated in a high-intensity focused ultrasound (HIFU) field. Eur. Phys. J. E: Soft Matter, 2019; 42(6): 70—83 DOI: 10.1140/epje/i2019-11833-8
|
[9] |
Chang N, Lu S, Qin D, et al. Efficient and controllable thermal ablation induced by short-pulsed HIFU sequence assisted with perfluorohexane nanodroplets. Ultrason. Sonochem., 2018; 45: 57—64 DOI: 10.1016/j.ultsonch.2018.02.033
|
[10] |
Khokhlova T D, Haider Y A, Maxwell A D, et al. Dependence of boiling histotripsy treatment efficiency on HIFU frequency and focal pressure levels. Ultrasound Med. Biol., 2017; 43(9): 1975—1985 DOI: 10.1016/j.ultrasmedbio.2017.04.030
|
[11] |
Pahk K J, Gélat P, Sinden D, et al. Numerical and experimental study of mechanisms involved in boiling histotripsy. Ultrasound Med. Biol., 2017; 43(12): 2848—2861 DOI: 10.1016/j.ultrasmedbio.2017.08.938
|
[12] |
宋人杰, 袁紫燕, 张琪, 等. 基于超声RF信号熵分析的声空化时空监测方法. 物理学报, 2022; 71(17): 174301 DOI: 10.7498/aps.71.20220558
|
[13] |
Yoshizawa S, Matsuura K, Takagi R, et al. Detection of tissue coagulation by decorrelation of ultrasonic echo signals in cavitation-enhanced high-intensity focused ultrasound treatment. J. Ther. Ultrasound, 2016; 4: 15 DOI: 10.1186/s40349-016-0060-0
|
[14] |
Farny C H, Holt R G, Roy R A. Temporal and spatial detection of HIFU-induced inertial and hot-vapor cavitation with a diagnostic ultrasound system. Ultrasound Med. Biol., 2009; 35(4): 603—615 DOI: 10.1016/j.ultrasmedbio.2008.09.025
|
[15] |
Saalbach K A, Twiefel J, Wallaschek J. Self-sensing cavitation detection in ultrasound-induced acoustic cavitation. Ultrasonics, 2019; 94: 401—410 DOI: 10.1016/j.ultras.2018.06.016
|
[16] |
Saalbach K A, Ohrdes H, Twiefel J. Closed loop cavitation control − A step towards sonomechatronics. Ultrason. Sonochem., 2018; 44: 14—23 DOI: 10.1016/j.ultsonch.2018.01.021
|
[17] |
Samah D, Sinaptec P T, Rouchon J F. Influence of cavitation on ultrasonic piezoelectric transducers impedance: Modelling and experimentation. IEEE 11th International Workshop of Electronics, Control, Measurement, Signals and their application to Mechatronics, Toulouse, France, 2013
|
[18] |
钱骏, 谢伟, 周小伟, 等. 基于换能器驱动信号特征的高强度聚焦超声焦域损伤实时监测. 物理学报, 2022; 71(3): 037201 DOI: 10.7498/aps.71.20211443
|
[19] |
Adams C, McLaughlan J R, Carpenter T M, et al. HIFU power monitoring using combined instantaneous current and voltage measurement. IEEE Trans. Ultrason. Ferroelectr. Freq. Control, 2020; 67(2): 239—247 DOI: 10.1109/TUFFC.2019.2941185
|
[20] |
郑昊, 李雁浩, 桂逢烯, 等. 高强度聚焦超声治疗的实时被动空化检测系统及其实验研究. 声学技术, 2021; 40(6): 788—794 DOI: 10.16300/j.cnki.1000-3630.2021.06.008
|
[21] |
Ramesh R, Ebenezer D D. Equivalent circuit for broadband underwater transducers. IEEE Trans. Ultrason. Ferroelectr. Freq. Control, 2008; 55(9): 2079—2083 DOI: 10.1109/TUFFC.899
|
[22] |
Lafon C, Moore D, Eames M D C, et al. Evaluation of pseudorandom sonications for reducing cavitation with a clinical neurosurgery HIFU device. IEEE Trans. Ultrason. Ferroelectr. Freq. Control, 2021; 68(4): 1224—1233 DOI: 10.1109/TUFFC.2020.3036774
|