Raquel Martínez-Valdez

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PURPOSE The aim of this study was to design an applicator for haemostasis usage needing lower acoustic intensities (<880 W/cm(2)) than in previous devices intended for it, which is based on ultrasound propagation FEM modelling using a 2-MHz HIFU transducer. MATERIALS AND METHODS Acoustic field characterisation and numerical simulations in water were(More)
It is well known that, in focused ultrasonic systems, the radiated beams through tissues converge around a focal point. This phenomenon produces a temperature increment over 56°C in few seconds, at the focus by the mechanical waves energy transformation into heat, due to acoustic absorption in the tissue. This can originate thermal coagulation,(More)
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