Assessment and correction of macroscopic field variations in 2D spoiled gradient‐echo sequences
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چکیده
منابع مشابه
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Spoiled & Balanced Gradient-Echo Sequences
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 exper...
متن کاملSteady-state sequences: Spoiled and balanced methods
In the context of MRI pulse sequences, the term “steady state” typically refers to the equilibrium condition that evolves when magnetization experiences a train of radiofrequency (RF) pulses. If RF pulses occur at broadly spaced intervals (TR≫T1), the magnetization recovers fully between pulses due to relaxation, and the steady-state is identical to the fully-relaxed magnetization, M0. In gener...
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ژورنال
عنوان ژورنال: Magnetic Resonance in Medicine
سال: 2019
ISSN: 0740-3194,1522-2594
DOI: 10.1002/mrm.28139