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FLASH / GRE spoiled signal

S/M_0 = 0.1678

S=M0sin⁡θ1−E11−cos⁡θ E1e−TE/T2∗S=M_0\sin\theta\frac{1-E_1}{1-\cos\theta\,E_1}e^{-TE/T_2^*}

S = M₀ sinθ (1−E1) / (1−cosθ E1) · e^{−TE/T2*}, E1 = e^{−TR/T1}.

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