Spectral characteristics of semisolid protons in human brain white matter at 7 T

Purpose To inform the quantification of MRI magnetization transfer contrast at high field by measuring the spectral characteristics of 1 H protons in semisolids in human brain at 7 T, while avoiding prohibitive radiofrequency (RF) tissue heating and confounding effects from chemical exchange. Methods Saturation‐recovery type experiments were performed using brief, frequency‐specific RF pulses that saturate semisolid proton magnetization....