Research Article

Combined Similarity to Reference Image with Joint Sparsifying Transform for Longitudinal Compressive Sensing MRI

Table 1

Comparison of the PSNR for sparsifying transforms, combining similarity between baseline and follow-up scans and between T2-weighted and FLAIR scans.

Two different clinical MRI scenarios Sparsifying transform PSNR

Follow-up experiment Wavelet 33.8674
Contourlet 35.3918
Wavelet + Contourlet 36.0977

T2-FLAIR experiment Wavelet 27.4890
Contourlet 28.1134
Wavelet + Contourlet 28.2907