Schuchardt FF, et al. - This prospective study explores in detail the hemodynamics of intracranial veins and tract of the venous outflow in 28 patients with relapsing-remitting multiple sclerosis (MS) and 41 healthy controls, performed through extra and transcranial sonography, 3T/2D phase-contrast and time-resolved 4D flow MRI. Results were no different from previous studies on extracranial hemodynamics as there was not much difference of intracerebral venous blood flow between MS patients and controls.