Synovitis in knee osteoarthritis assessed by contrast-enhanced magnetic resonance imaging (MRI) is associated with radiographic tibiofemoral osteoarthritis and MRI-detected widespr... by Guermazi, A, Hayashi, D, Roemer, F, Zhu, Y, Niu, J, Crema, MD, Javaid, M, Marra, MD, Lynch, J, El-Khoury, G, Zhang, Y, Nevitt, M, Felson, D