Spoiled & Balanced Gradient Echo Methods
نویسنده
چکیده
Imaging with spoiled, balanced or nonbalanced gradient echo (GRE) refers to a class of fast imaging sequences that use a dynamic equilibrium or steady state signal for imaging. As originally introduced in 1958 by Carr (1) for NMR spectroscopy, a dynamic equilibrium or steadystate can be established by a train of radio-frequency (RF) excitation pulses interleaved by periods of ‘free precession’, referred to as steady state free precession (SSFP) (see Fig. 1).
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