Spoiled & Balanced Gradient-Echo Sequences
نویسنده
چکیده
1 Introduction Rapid imaging sequences are characterized by a fast train of excitation and gradient pulses. Between excitation pulses or within TR, the magnetization is not able to return to its thermal equilibrium. As a consequence, excitation pulses will influence both the remaining transversal and the remaining longitudinal magnetization. The steady-state magnetization of a multi pulse experiment is thus a mixture or superposition of different transversal and longitudinal states, and the acquired image amplitude becomes a complex function of the investigated tissue's relaxation properties.
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