Fig. 4.

Simulations of the ⁴CH₂-GABA triplet at 3.01 ppm. The resonance shapes showed high editing stability in case of the adiabatic editing pulse in the presence of ${\text{B}}_1^{+}$ variations of ±30% and 0.15 ppm editing frequency offsets (<1.8% integrated signal loss). At ${\text{B}}_1^{+}$ = 100%, the conventional Gaussian pulse yielded up to 29% less integrated signal in the off-resonance case, while a 15.8-fold lower signal integral, together with a strongly deteriorated triplet structure, was obtained for the Gaussian pulse compared to the HS pulse at ${\text{B}}_1^{+}$ = 70% and ${\text{B}}_1^{+}$ = 130%.