Rescan Time Delays in Ischemic Stroke Imaging: A Retrospective Observation and Analysis of Causes and Clinical Impact ===================================================================================================================== * J.M. Katz * J.J. Wang * A.T. Boltyenkov * G. Martinez * J. O'Hara * C. Feizullayeva * M. Gribko * A. Pandya * P.C. Sanelli