Ultrafast_Echocardiography_for_rSVD

This is an in vivo ultrafast echocardiography dataset used for randomized singular value decomposition (rSVD) clutter filtering as presented in our paper (Figures 2-8 and supplementary video). This subject (male, 27-year-old) was scanned with two sub-apertures (M=2) and four different numbers of cascaded waves (W=4,8,16,32) to acquire echoes at different signal-to-noise (SNR) levels by our previously published CaSA method (doi: 10.1109/TUFFC.2019.2925282).
File "PDop_27yo_male_M2W8.mat": processed results (a threshold of 640 was applied to both full-SVD and rSVD with all the 4000 frames). Power Doppler images can be viewed using the command (MATLAB) as shown below:
figure, imagesc(bflow_azimuth,bflow_depth,pDop_rsvd(:,:,:,frm), dataLIMS),hold on,colormap(gca,'hot'); xlabel('Azimuth (mm)'); ylabel('Depth (mm)');title('rSVD-processed result'); axis('image');