Inhomogeneous magnetization transfer (ihMT) contrast in the brain has been reported to be a myelin-specific biomarker, but can be impacted by B1 inhomogeneities, reducing its accuracy. ihMT equations incorporating B1 correction assume a single excitation and readout, either a k-space line or plane, per saturation module. Here we use an arbitrary number of readout segments collected after an MT saturation preparation module. T1 and B1 variations are included in the signal equations to increase specificity of the contrast to the microstructure. The resulting implementation yields a balance between acquisition efficiency and contrast resolution for different brain imaging applications.