Computed Tomography Angiography in Hyperacute Ischemic Stroke

Computed tomography angiography in hyperacute ischemic stroke: prognostic implications and role in decision-making.

TITLE: Computed Tomography Angiography versus Computed Tomography for the Diagnosis and Management of Hyperacute Stroke: A Review of Comparative Clinical Evidence and Guidelines

A stroke is a sudden loss of brain function caused by the interruption of flow of blood to the brain which may result in death of neurons in the affected area and it is characterized by rapidly developing clinical symptoms lasting over 24 hours or leading to death, with no apparent cause other than that of vascular origin. Ischemic stroke is stroke caused by vascular insufficiency (such as cere...

Can coronary computed tomography angiography replace invasive angiography? Coronary computed tomography angiography cannot replace invasive angiography.

O ne million patients undergo invasive coronary angiogra-phy (CA) in the United States every year. 1 In view of its invasive nature and related costs, noninvasive imaging of coronary imaging has the theoretical appeal to improve comfort for patients, reduce cost, and refine patient selection to limit invasive procedures to patients requiring treatment for ischemic coronary artery disease (CAD)....

White Matter Ischemic Changes in Hyperacute Ischemic Stroke

BACKGROUND AND PURPOSE The purpose of this study was to evaluate changes in fractional anisotropy (FA), as measured by diffusion tensor imaging, of white matter (WM) infarction and hypoperfusion in patients with acute ischemic stroke using a quantitative voxel-based analysis. METHODS In this prospective study, diffusion tensor imaging and dynamic susceptibility contrast perfusion sequences we...

Computed tomography coronary angiography.

Recent developments in computed tomography technology have made imaging of the coronary arteries possible. All the same, the rapid motion and small dimensions of the coronary vessels make coronary computed tomography angiography (coronary CTA) challenging. With the last generations of 16- and 64-slice computed tomography and adequate patient preparation (which includes lowering of the heart rat...