MRI Abbreviation

Generic name for balanced gradient echo sequence in which both SSFP-FID and SSFP-echo signals are measured. The integral of the gradient area in each TR interval must be the zero, or banding in images results from overlapping (and interference) of the SSFP-FID and SSFP-echo. Additional requirements include TR ≤ T2, and RF excitation pulses must be phase coherent (or sign-alternated). Contrast weighting is according to the ratio T2/T1. Also known as BFFE, FIESTA, TrueFISP