High intensity focused ultrasound

F. Kallel, R. J. Stafford, R. E. Price, R. Righetti, J. Ophir and J. D. Hazle, The feasibility of elastographic visualization of HIFU-induced thermal lesions in soft tissues. Image-guided high-intensity focused ultrasound, Ultrasound Med. Biol., 1999, 25, 641-647. 

Hanajiri K, Maruyama T, Kaneko Y, Mitsui H, Watanabe S, Sata M, Nagai R, Kashima T, Shibahara J, Omata M, Matsumoto Y (2006) Microbubble-induced increase in ablation of liver tumors by high-intensity focused ultrasound. Hepatology Research 36 308-314. 

Zhou XD, Ren XL, Zhang J, He GB, Zheng MJ, Tian X, Li L, Zhu T, Zhang M, Wang L, Luo W (2007) Therapeutic response assessment of high intensity focused ultrasound therapy for uterine fibroid utility of contrast-enhanced ultrasonography. European Journal of Radiology 62 289-294. 

F.J. Fry, T.D. Franklin, L. Lumeng and J.L. Grosfeld, High-intensity focused ultrasound in the treatment of experimental liver cancer, Arch. Surg. 126(1991) 1002-1010. 

Fernandez, C., A.C.L. Conceicao, R. Rial-Otero, C. Vaz, and J.L. Capelo. 2006. Sequential flow injection analysis system on-line coupled to high intensity focused ultrasound Green methodology for trace analysis applications as demonstrated for the determination of inorganic and total mercury in waters and urine by cold vapor atomic absorption spectrometry. Anal. Chem. 78 2494-2499. 

Fig. 6.20 (a) Piezoceramic parts for a range of applications including accelerometers, underwater acoustics, pressure and liquid level sensors, medical diagnostics and therapeutics and NDT the ultrasound focusing bowls are for medical imaging and for producing high-intensity focused ultrasound. 

Wu F, Chen WZ, Bai J, et al. Pathological changes in human malignant carcinoma treated with high-intensity focused ultrasound. Ultrasound Med Biol 2001 27 1099-106. 

Frenkel, V., Etherington, A., Greene, M., Quijano, J., Xie, J., Hunter, F., Dromi, S., and Li, K. C. P. (2006), Delivery of liposomal doxorubicin (Doxil) in a breast cancer tumor model Investigation of potential enhancement by pulsed-high intensity focused ultrasound exposure, Acad. Radiol., 13,467-479. 

The presence of particulate matter — especially that of trapped vapour gas nuclei in their crevices and recesses — has also been found to lower the cavitation threshold. This is required under these conditions are of paramount importance in the clinical field, where ultrasound Is widely used in applications such as high-intensity focused ultrasound (HIFU),... 

A. Correia, M. Galesio, H. Santos, R. Rial-Otero, C. Lodeiro, A. Oehmen, A.C.L. Conceicao, J.L. Capelo, Can sample treatments based on advanced oxidation processes assisted by high-intensity focused ultrasound be used for toxic arsenic determination in human urine by flow-injection hydride-generation atomic absorption spectrometry Talanta 72 (2007) 968. 

Bigelow TA, Northagen T, Hill TM, Sailer EC (2009) The destruction of Escherichia coli biofilms using high-intensity focused ultrasound. Ultrasound Med Biol 35 1026-1031... 

Jaaskelainen J (2003) Non-invasive transcranial high intensity focused ultrasound (HIFUS) under MRI thermometry and guidance in the treatment of brain lesions. Acta Neurochir (Wien) [Suppl] 88 57-60... 

Loulou, T., and Scott, E. P., 2000 2-D Thermal Dose Optimization in High Intensity Focused Ultrasound Treatments Using the Adjoint Method, ASME HTD—Vol. 368/BED—Vol. 47, Advances in Heat and Mass Transfer in Biotechnology—2(X)0, pp. 67—71. 

Using thermal energy to destroy tumors and other malignant growths has been become a routine procedure for small lesions. Techniques such as high-intensity focused ultrasound [63—65] or laser thermal coagulation [66,67] can be used either non- or minimally invasively by directing... 

Ikeda, T., Yoshizawa, S., Tosaki, M., et al. (2006) Cloud cavitation control for hthotripsy using high intensity focused ultrasound, Ultrasound Med. Biol., 32, 1383-97. 

Zhou, Y., Zhai, L., Simmons, R. and Zhong, P. (2006) Measurement of high intensity focused ultrasound fields by a fiber optic probe hydrophone, J. Acoust. Soc Am., 120, 676-85. 

Schafer, M.E., Gessert, J. and Moore, W. (2005) Development of a high intensity focused ultrasound (HIFU) hydrophone system. Proceedings of the IEEE Ultrasonics Symposium, Rotterdam, The Netherlands, 18-21 September 2005, 1739 2. 

Ye, F., Lin, T., Fu, Y., et al. An experimental study of real-time monitoring of acoustic output in high-intensity focused ultrasound using a PVDF piezoelectric sensor, in Therapeutic Ultrasound 5th International Symposium on Therapeutic Ultrasound (eds Clement, G.T., McDannold, N.J. and Hynynen, K.), AIP Conf. Proc. 829, Am. Inst. Physics, New York, 2006, 604-9. 

For the ultrasound ablation two methods are currently available - extracorporeal (transcutaneous) and direct (or percutaneous) via a needle-like applicator. The term high intensity focused ultrasound should be reserved for describing the extracorporeal method. Direct ultrasound ablation means the replacement of an applicator via a percutaneous or laparoscopic insertion. 

Epidemiology of Breast Cancer 221 Interstitial Laser Therapy (ILT) 222 Radiofrequency Ablation (RFA) 223 High-Intensity Focused Ultrasound (HIFU) 224... 

High-intensity focused ultrasound (HIFU) has the same principle as conventional ultrasound. Many piezo elements emit US beams, which are brought to a tight focus. There, focal energy deposition by conversion of mechanical energy into heat causes protein denaturation and tissue necrosis. Arrest of... 

Kaufman CS, Bachman B, Littrup PJ et al (2004) Cryoablation treatment of benign breast lesions with 12-month follow-up. Am J Surg 188 340-348 Kennedy JE, Ter Haar GR, Cranston D (2003) High intensity focused ultrasound surgery of the future Br J Radiol 76 590-599... 

Ultrasound waves produce a variety of thermal and cavitational effects in biological tissues [1]. Given their widespread use in medical diagnostic and treatment since the sixties [2], stringent standards have been developed to keep the intensity of these waves within safe levels [3], Thus, calibration techniques have also been actively developed such as wideband hydrophones, calorimetric, optical and radiation-force measurement systems [3], When the intensity increases, as it is the case in HIFU (high intensity focused ultrasound) and lithotripters, calibration becomes more delicate [1],... 

Minimally invasive therapeutic approaches are also being piloted with MRI guidance and monitoring. These methods include high-intensity focused ultrasound, laser, electric current, RF hyperthermia and cryoablation. Areas of interest include breast, prostate and liver cancer. In principle, MR provides a valuable means of directly measuring temperature distributions in monitoring these treatments. 

Local hyperthermia uses very high heat. Radio waves, microwaves, ultrasound waves, and other forms of energy can be used to heat the local area. When ultrasound is used, the technique is called high intensity focused ultrasound, or HIFU. The heat may be applied using different methods ... 

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