Complementary Coded Multiplane Wave Sequence for SNR Increase in 3D Ultrafast Power Doppler Ultrasound Imaging

Ultrafast 3D Power Doppler ultrasound imaging, enhances blood flow detection and offers detailed volumetric assessments of blood flow. However, techniques like CPWC face SNR limitations, especially at high frame rates. This study introduces a novel method using 2D sparse arrays and Multi-Plane Wave Imaging with Complete Complementary Codes (MPWI-3C), which improves SNR without increasing the number of transmissions. Experimental results demonstrate that MPWI-3C outperforms existing methods, offering superior sensitivity and image quality, particularly in challenging deep tissue imaging scenarios.