A Spatial Compounding Method for Non-Delayed Sequential Beamforming

We present a new spatial compounding method to improve the contrast of ultrasonic images for non-delayed sequential beamforming (NDSB). Sequential adopts more than one beamformer reconstruct B-mode which has advantage simple front-end electronics and fast data transfer rate. Via field pattern analysis, we propose where two sub-images can be reconstructed along with NDSB sub-image. These seen as being produced different transmit origins; thus, their summation enhances image contrast. Image quality was analyzed in terms resolution, ratio (CR), contrast-to-noise (CNR). The proposed improves lateral resolution up 41%. In vitro results confirm 13.0-dB CR 4.0-dB CNR improvement. vivo reveal 10.9-dB 6.0-dB improvement cross-section jugular vein 8.0-dB 4.5-dB longitudinal-section carotid artery.