Accurate acoustic power measurement for low-intensity focused ultrasound using focal axial vibration velocity

• Published in: Journal of applied physics Vol. 122; no. 1
• Main Authors: Tao, Chenyang, Guo, Gepu, Ma, Qingyu, Tu, Juan, Zhang, Dong, Hu, Jimin
• Format: Journal Article
• Language: English
• Published: Melville American Institute of Physics 07.07.2017
• Subjects: Applied physics; Biological effects; Biomedical engineering; Computer simulation; Parameters; Physical properties; Power control; Power gain; Transducers; Ultrasonic imaging; Vibration measurement; Vibration meters

Low-intensity focused ultrasound is a form of therapy that can have reversible acoustothermal effects on biological tissue, depending on the exposure parameters. The acoustic power (AP) should be chosen with caution for the sake of safety. To recover the energy of counteracted radial vibrations at t...