Abstract: A portable ultrasound device (109) for non-invasively imaging a selected sub-cutaneous structure, comprising: (a) a housing (110); and (b) a plurality of arrays (300A) of transducer elements (300). Each array (300A) is arranged in parallel and each transducer element (300) comprises a transmitter transducer (705) and a receiver transducer (707), located within the housing (110) for continuously transmitting ultrasound energy in a predetermined frequency range toward a body (100) of a subject and continuously receiving echo signals in a predetermined frequency range from the subjects body (100). The plurality of parallel arrays (300A) enables imaging of the sub-cutaneous structure (101, 101A) in multiple transverse and lateral planes.