Brain and vascular imaging in acute ischemic stroke

Abstract
Historically, vascular imaging was developed first and provided the rationale for surgery in cases of high-grade carotid stenoses and for prophylaxis with antiplatelet agents. Brain tissue imaging with CT was developed later and this technique allowed the diagnosis of ischemic stroke and thus thrombolytic treatment, which recently has been shown to be beneficial.1,2 A variety of new tools are now available for vascular and tissue imaging: ultrasound, CT angiography (CTA), MRI and MR spectroscopy (MRS), single photon emission tomography, and positron emission tomography.