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Comprehensive Human Brain Imaging Enhancement with the Single-frequency Excitation Wideband MRI (SE-WMRI) Technique
Jordan Wang1, Po-Wei Cheng1, Ming-Jang Chiu2, Tzi-Dar Chiueh3, and Jyh-Horng Chen3
1Graduate institute of biomedical electronics and bioinformatics, National Taiwan University, Taipei, Taiwan, 2National Taiwan University Hospital, Taipei, Taiwan, 3Department of electrical engineering, National Taiwan University, Taipei, Taiwan
A comprehensive human brain imaging enhancement is achieved with the Single-frequency Excitation Wideband MRI technique on a Siemens PRISMA 3T human MRI system in terms of acceleration, SNR improvement, and resolution enhancement.
Fig. 1 Conventional GRE and 2-time accelerated SE-GRE image comparison under the same resolution with the zoomed-in comparison of the center region. The two images have similar SNR, and their SSIM value is above 0.99, indicating an extremely high resemblance for image quality in terms of signal strength, contrast, and structural similarity.
Fig.3 Standard GRE (Res. = 1 mm) and SE-GRE (Res. = 0.5 mm) images acquired within the same scan time and the zoomed-in comparisons of the bottom-left region and the top-right region. The comparison shows significant improvement for clarity of structural details, visibility of vessels, and edge sharpness between different tissues.