Résumé
Intracranial hemorrhage is common and is caused by diverse pathology, including trauma, hypertension, cerebral amyloid angiopathy, hemorrhagic conversion of ischemic infarction, cerebral aneurysms, cerebral arteriovenous malformations, dural arteriovenous fistula, vasculitis, and venous sinus thrombosis, among other causes. Neuroimaging is essential for the treating physician to identify the cause of hemorrhage and to understand the location and severity of hemorrhage, the risk of impending cerebral injury, and to guide often emergent patient treatment. We review CT and MRI evaluation of intracranial hemorrhage with the goal of providing a broad overview of the diverse causes and varied appearances of intracranial hemorrhage.
Sujets)
Humains , Malformations artérioveineuses , Malformations vasculaires du système nerveux central , Angiopathie amyloïde cérébrale , Infarctus cérébral , Traumatismes cranioencéphaliques , Hématome subdural , Hémorragie , Hypertension artérielle , Anévrysme intracrânien , Hémorragies intracrâniennes , Imagerie par résonance magnétique , Neuroimagerie , Anatomopathologie , Thromboses des sinus intracrâniens , Hémorragie meningée , VasculariteRésumé
A non-contrast CT (NCCT) scan is usually obtained after intra-arterial (IA) thrombolysis to assess for possible hemorrhagic complication. Hyperdensity on NCCT following IA thrombolysis can represent either hemorrhage or extravasated iodinated contrast material, and these can be diffi cult to distinguish.1 This is illustrated by the following case report.