Turbo Spin Echo Bloch Siegert Shift B1 Mapping
نویسندگان
چکیده
An interesting method for B1 mapping based on the Bloch-Siegert (BLS) shift was recently presented (1,2) for gradient echo (FLASH) and Spin Echo (SE) sequences. This method uses off-resonant pulses before signal acquisition to encode the B1 information into the signal phase. Fast B1 mapping is possible since the repetition time has only minor influence on the quality of the phase information. In the present study, the use of BLS B1 mapping was extended to CPMG-based Turbo-Spin-Echo (BLS-CPMG-TSE) imaging. For fast B1 mapping phantom as well as in vivo 2D and 3D experiments were performed to evaluate the proposed method.
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