Tokunori Kimura1, Kousuke Yamashita1, and Kouta Fukatsu1
1Department of Radiological Science, Shizuoka College of Medicare Science, Hamamatsu-Shi, Japan
1Department of Radiological Science, Shizuoka College of Medicare Science, Hamamatsu-Shi, Japan
We proposed a modified T2-based water suppression synthetic-MRI
technique without loss of tissue SNR. Our modified version was added “Spatially-dependent Water Masking” to keep
tissue SNR. CSF-PVE artifacts were almost perfectly suppressed while the
tissue SNR was kept before subtraction.
Fig. 2 Detailed process flow for “Water suppression for acquired images” in Fig. 1.
Examples of actual images and quantitative maps in each stage were shown in the right side.
Fig. 3 Images of heavyT2W (TElong=500ms) and T2W (TE2=100ms) as a parameter of masking threshold, ThVw.
Note that the water (CSF) signals were reduced with decreasing ThVw, and ThVw=0.05 is optimal from the views of tissue SNR and water suppression effects.
