Acoustic Cavitation Detection Produced by Ultrasound in an Agarose-gel Phantom Analyzed with Frequencies Spectrogram. - Jorge Alberto Rodríguez Ramírez; Mario-Ibrahin Gutiérrez; Arturo Vera Hernández; Carlos Alther Negreira Casares; Antonio Ramos Fernandez; Lorenzo Leija Salas (I2MTC, 2020)