An ultrasound sparse array consists of a sparse distribution of elements over a 2-D aperture.
Such an array is typically characterized by a limited number of elements, which in most …

Piezoelectric Micromachined Ultrasonic Transducers (PMUT) and Capacitive
Micromachined Ultrasonic Transducers (CMUT) have seen great developments in recent …

Two-dimensional (2-D) arrays offer volumetric imaging capabilities without the need for
probe translation or rotation. A sparse array with elements seeded in a tapering spiral …

Spiral array transducers with a sparse 2-D aperture have demonstrated their potential in
realizing 3-D ultrasound imaging with reduced data rates. Nevertheless, their feasibility in …

Sparse array designs are a promising approach to improve the beam pattern and imaging
quality, especially for applications, where hardware resources are severely limited. In …

Ultrasound vector Doppler techniques for three-dimensional (3-D) blood velocity
measurements are currently limited by low temporal resolution and high computational cost …

Two-dimensional arrays enable volumetric ultrasound imaging but have been limited to
small aperture size and hence low resolution due to the high cost and complexity of …

Spiral-shaped phased arrays are widely used for sound source localization and are trending
in other fields, eg 3D medical ultrasound imaging. The non-uniform element geometry …

Two-dimensional sparse arrays and row-column arrays are both alternatives to 2-D fully
addressed arrays with lower channel counts. Row-column arrays have recently …

Tight integration of capacitive micromachined ultrasonic transducer (CMUT) arrays with
integrated circuits can make active impedance matching feasible for practical imaging …