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High frequency row column addressed matrix array for volumetric ultrafast ultrasound imaging

Volumetric “ultrafast” imaging is one of the major trends in ultrasound imaging techniques. It indeed paves the way for novel modalities when combined with Doppler, elastography and contrast imaging [1]. Unfortunately, due to the complexity and the inherently unaffordable costs, fully populated matrix-based systems are facing to pricing problems that limit their commercial development. Recently, row-column addressed (RCA) matrix transducer approaches have been proposed to overcome both complexity and costs issues but in a limited frequency range, i.e. below 10MHz. However, there is also a tremendous need to deploy this solution to higher frequencies, typically 15MHz and above, mainly for brain functional ultrasound imaging investigation.