Volumetric 3-D vector flow measurements using a 62+62 row-column addressed array

Today, 3-D vector flow imaging (VFI) in a full volume requires a fully populated NxN 2-D matrix array if a sufficient frame rate should be maintained. Such arrays require an expensive ultrasound system, which can handle the enormous data stream created by the N
²
channels. As an alternative to the matrix array, N+N 2-D row-column addressed (RCA) arrays were introduced, which reduce the channel count by a factor N/2. The aim of this work is to demonstrate that an RCA array with only 124 channels can provide 3-D VFI in a volume.