Analysis of Magnetization Transfer Ratio Measurements at 3T Using Multiple-Acquisition Balanced SSFP
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چکیده
Introduction. Magnetization transfer (MT) has become an important tool to study various tissue abnormalities, such as demyelination in brain white matter [1]. Recently, it has been shown that fast MT scans based on balanced steady-state free precession (bSSFP) with RF pulse modification achieve high SNR and high reproducibility at 1.5T [2]. At 3T, combination of multiple, phase-cycled, bSSFP scans might be required to overcome limitations from off-resonance artifacts. In this study, different recombination methods for the generation of accurate magnetization transfer ratio (MTR) maps were analyzed.
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تاریخ انتشار 2010