Operating procedure of a handheld ultrasound scanner, said handheld ultrasound scanner comprising: - transducers suitable to convert electromagnetic pulses into ultrasound pulses and vice versa and, thus, to send and receive ultrasound pulses, - electromagnetic wave generating means suitable to send given electromagnetic pulses to said transducers to be converted into given ultrasound pulses, - electromagnetic wave receiving means suitable to receive electromagnetic pulses from said transducers consequent to the reception of ultrasound echoes of the ultrasound pulses sent, - control means suitable to control the components of said handheld ultrasound scanner, - processing means suitable to process signals from said receiving means and convert them into images, and wherein said receiving means receive electromagnetic pulses from said transducers and at least convert the analogue signal into a digital signal, and offset any effects of phase shift or attenuation of the signal received, - wherein - said handheld ultrasound scanner comprises transmitting means for transmitting said images to a computer of a conventional type external to said handheld ultrasound scanner, preferably consisting of a smartphone or tablet, and said computer comprising a screen, electronic processing means, connections, controls for said ultrasound scanner, preferably of the touch-screen type, - wherein said procedure further consists of: - processing said signals coming from said receiving means by means of said processing means contained in said ultrasound scanner, and converting them into images by means of a B-Mode processing, - sending said images processed by said processing means to said computer by means of said transmitting means, - said procedure being characterised in that - the processing means reconstructs said signals into a series of black and white circular sector images, while processor performs operations of post-processing of said images which results in the creation of a video file, - the viewing of said video by said computer on said screen. - transducers suitable to convert electromagnetic pulses into ultrasound pulses and vice versa and, thus, to send and receive ultrasound pulses, - electromagnetic wave generating means suitable to send given electromagnetic pulses to said transducers to be converted into given ultrasound pulses, - electromagnetic wave receiving means suitable to receive electromagnetic pulses from said transducers consequent to the reception of ultrasound echoes of the ultrasound pulses sent, - control means suitable to control the components of said handheld ultrasound scanner, - processing means suitable to process signals from said receiving means and convert them into images, and wherein said receiving means receive electromagnetic pulses from said transducers and at least convert the analogue signal into a digital signal, and offset any effects of phase shift or attenuation of the signal received, - wherein - said handheld ultrasound scanner comprises transmitting means for transmitting said images to a computer of a conventional type external to said handheld ultrasound scanner, preferably consisting of a smartphone or tablet, and said computer comprising a screen, electronic processing means, connections, controls for said ultrasound scanner, preferably of the touch-screen type, - wherein said procedure further consists of: - processing said signals coming from said receiving means by means of said processing means contained in said ultrasound scanner, and converting them into images by means of a B-Mode processing, - sending said images processed by said processing means to said computer by means of said transmitting means, - said procedure being characterised in that - the processing means reconstructs said signals into a series of black and white circular sector images, while processor performs operations of post-processing of said images which results in the creation of a video file, - the viewing of said video by said computer on said screen. - processing said signals coming from said receiving means by means of said processing means contained in said ultrasound scanner, and converting them into images by means of a B-Mode processing, - sending said images processed by said processing means to said computer by means of said transmitting means, - said procedure being characterised in that - the processing means reconstructs said signals into a series of black and white circular sector images, while processor performs operations of post-processing of said images which results in the creation of a video file, - the viewing of said video by said computer on said screen.