Comparison between ct MRI in ischemic stroke .1-Definition 2-Pathology 3-Vascular territory 4-Staging 5-hemorrhagic transformation of the infarct Difference between simple hemorrhage and hemorrhagic neoplasm difference between Hemorrhagic infarct and primary intracerebral hemorrhage 6-Comparison between CT/MRI 7-CTA, MRA 8-Fogging 9-Pseudonormalization 10-Protocol 11-Differential diagnosis 12-home message