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MR ventriculocisternography by using 3D balanced steady-state free precession imaging: technical note
Ming-Long Wu1, Cheng-Wen Ko, Ting-Yi Chen
1Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan, Republic of China.
Abstract:
This study investigated the effects of flip angle setting in 3D balanced steady-state free precession (SSFP) imaging on CSF-parenchyma contrast and section aliasing artifacts. Theoretical derivations indicated that the extent of section aliasing artifacts decreased as the flip angle was lowered, at the expense of a sacrifice in CSF-parenchyma contrast. Experimental data agreed closely with theoretical predictions. A flip angle of about 40 degrees is therefore recommended for 3D balanced SSFP MR ventriculocisternography.
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