Cheng-Chieh Cheng1, 2, Lawrence Panych1, Bruno Madore1
1Department of Radiology, Brigham and Women's Hospital, Boston, MA, United States; 2Graduate Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, Taipei, Taiwan
Phase information from MR images can prove useful to detect field variations across the imaged object, such as in susceptibility-weighted imaging. A pulse sequence is proposed that can make efficient use of the entire TR period to encode susceptibility-related information. While a 'fast imaging with steady-state precession' (FISP) signal may require relatively long TE settings to accurately detect susceptibility-related dephasing, an inverted FISP (or PSIF) signal acquired early in the TR interval can help improve SNR in the generated phase maps.
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