The third part of the European Federation of Societies for Ultrasound in Medicine and Biology (EFSUMB) Guidelines on Interventional Ultrasound assesses the evidence for ultrasound-guided and assisted interventions in abdominal treatment procedures. Recommendations for clinical practice are presented covering indications, contraindications, safety and efficacy of the broad variety of these techn...

A one-step method was developed to produce metal nanocomposites from metal alloys under ultrasound irradiation. Systematic investigation of ultrasound effects on various metal particles reveals cavitation-induced recrystallization and oxidation of metals as main factors in the process. The fact that different metals react in dramatically different fashion towards ultrasound irradiation was expl...

Nucleation of ice during freezing is an important phenomenon affecting the probability distribution of the ice crystal size and crystal growth. Power ultrasound has been proved to be useful in promoting the nucleation of ice in water based solutions. In the present work, the use of ultrasound waves to induce dynamic nucleation was studied on deionized water, 8% sucrose solution, and agar gel sa...

A robot system for positioning an ultrasound probe has been developed [1]. Ultrasound visual servoing can be used to help ultrasound technicians position the ultrasound probe. The feasibility of visual servoing for motion in the plane of the ultrasound probe in one dimension has been addressed here. Tracking of the carotid artery for a long period of time has been demonstrated in real-time. Two...

Background and objectives: Colchicum kurdicum (Bornm.) Stef. is a flowering perennial monocotyledon plant that has many important bioactive compounds especially colchicine and colchicine derivatives. In this study, the ultrasound-assisted acidic-solvent extraction method coupled with response-surface method was presented as the successful method for large scale extract...

The problem of electron tunneling assisted by an elementary excitation in a double barrier resonant device is usually described within a sequential (decoherent) approximation. By solving exactly the many-body problem for a simplified model of electron–phonon interaction we show, analytically and numerically, that the assisted tunneling peak can be strongly enhanced by an appropriate election of...

The development of a rapid, reproducible and simple method of extraction of the majority capsaicinoids (nordihydrocapsaicin, capsaicin, dihydrocapsaicin, homocapsaicin and homodihydrocapsaicin) present in hot peppers by the employment of ultrasound-assisted extraction is reported. The study has covered four possible solvents for the extraction (acetonitrile, methanol, ethanol and water), the op...

1. Experimental section Ultrasound-assisted EESI, DESI and mass spectrometry A solvent mixture (methanol / water / acetic acid 40% / 40% / 20%) was electrosprayed at a flow rate of 5μL / min infused by a syringe pump (Harvard Apparatus, Holiston, MA, USA). The quadrupole time-of-flight (Q-TOF) mass spectrometer (QTOF UltimaTM, Micromass / Waters, Manchester, UK) was run in positive ion detectio...

Herein, the concept and data for cancer treatment that combines ultrasound and nanoparticles is reported. Non-toxic gold and magnetic nanoparticles were used to enhance the ultrasound destruction of cancer cells in vitro. Separate monolayers of normal and cancer cells were treated by focused ultrasound with the result of more pronounced damage of cancer cells when biocompatible gold and magneti...

Currently available ultrasound (US) tomography systems suggest utilizing cylindrical transducers that can be used for a specific organ. In this paper, our focus is on an alternative way of creating US tomographic images that could be used for other anatomies and more general applications. This system consists of two conventional US probes facing each other while one or several of the transducer...