RT Journal Article SR Electronic T1 MR Imaging–Based Decision in Thrombolytic Therapy for Stroke on Awakening: Report of 2 Cases JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1314 OP 1316 DO 10.3174/ajnr.A1069 VO 29 IS 7 A1 Iosif, C. A1 Oppenheim, C. A1 Trystram, D. A1 Domigo, V. A1 Méder, J.-F. YR 2008 UL http://www.ajnr.org/content/29/7/1314.abstract AB SUMMARY: Patients with stroke on awakening are denied the potential benefit of thrombolysis on the grounds that the onset time is unknown. Relying on clinical and MR imaging to indicate the most appropriate treatment could be more rational. We report 2 cases of stroke with unknown onset time. In both cases, anamnesis and MR imaging indicated that we might still be within 6 hours from stroke onset, with salvageable tissue. Arterial recanalization was successfully performed in both cases.