Since acute stroke and transient ischemic attack (TIA) are disruptions of brain hemodynamics, perfusion neuroimaging might be of clinical utility. Recently, arterial spin labeling (ASL), a noncontrast perfusion method, has…
After onset of ischemic stroke, potentially viable tissue at risk (ischemic penumbra) may be salvageable. Currently, intravenous alteplase is approved for up to 4.5 hours after symptom onset of acute…
Magnetic resonance (MR) perfusion imaging offers the potential for measuring brain perfusion in acute stroke patients, at a time when treatment decisions based on these measurements may affect outcomes dramatically….
Although acute stroke imaging has made significant progress in the last few years, several improvements and validation steps are needed to make stroke-imaging techniques fully operational and appropriate in daily…
Computed tomographic perfusion (CTP) imaging is an advanced modality that provides important information about capillary-level hemodynamics of the brain parenchyma. CTP can aid in diagnosis, management, and prognosis of acute…
Pamela W. Schaefer, MD, Guest Editor With the advent of advanced MR and CT techniques and new endovascular procedures, diagnosis and management of acute stroke are a rapidly evolving field….
This article is a review of vascular tumors and malformations that occur in infancy and childhood. It discusses anomalies of arterial, venous, capillary, lymphatic, and mixed vascular endothelium in terms…
This article presents clinical characteristics and radiologic features of congenital cervical cystic masses, among them thyroglossal duct cysts, cystic hygromas, branchial cleft cysts, and the some of the rare congenital…
Congenital cerebral vascular anomalies include a spectrum of conditions that result from perturbation of normal developmental processes. Although some of these conditions are asymptomatic and well compensated by collateral circulation,…
Although ultrasound remains the screening modality of choice in evaluation of the fetal nervous system, magnetic resonance imaging with its multiplanar imaging ability and high signal-to-noise ratio is highly accurate…
