Simplifying venous outflow: Prolonged venous transit as a novel qualitative marker correlating with acute stroke outcomes.

Yedavalli VS, Lakhani DA, Koneru M, Balar AB, Greene C, Hoseinyazdi M, Nabi M, Lu H, Xu R, Luna L, Caplan J, Dmytriw AA, Guenego A, Heit JJ, Albers GW, Wintermark M, Urrutia V, Huang J, Nael K, Leigh R, Marsh EB, Hillis AE, Llinas RH