Magnetic resonance imaging estimation of longitudinal relaxation rate change (ΔR1) in dual gradient echo sequences using an adaptive model. - Hassan Bagher-Ebadian; Siamak P. Nejad-Davarani; Meser M. Ali; Stephen Brown; Malek Makki; Quan Jiang; Douglas C. Noll; James R. Ewing (IJCNN, 2011)