Methods We developed a graphical interface using The Visualization Toolkit, allowing for voxel selection at the confluence and bilateral internal cerebral veins on CTA along with arterial input ...

Measurement of cerebral vasoreactivity has been used to evaluate the capacity of perfusion reserve in patients with cerebral ischemia. 12345678910111213141516 Two major cerebral vasodilatory methods, ...

(D) The perfusion MRI mean transit time maps demonstrated a large perfusion abnormality in the right MCA territory, which was much larger than the diffusion abnormality (gray arrows).

Not great. Lead investigators conclude that neither CT perfusion nor CT angiography met the pre-set validation hurdle of >98 % for both sensitivity and specificity.

This week's topics include using CT to help determine brain death, PET scanning for tau in Alzheimer's, screen time trajectories in U.S. youth and mental health, and cannabis and your heart.

Neuroprognostication is one of the most controversial and sensitive examinations in the field of neurology.

Background: CT Perfusion (CTP) defined hemodynamic parameters used to delineate admission infarct core can be affected by truncated data acquisition, recanalization status and reactive hyperemia. We ...

Learn about vasospasm—a sudden artery narrowing that can affect the brain, heart, and extremities. Explore its causes, symptoms, and effective treatments.

Objective Blood pressure (BP) lowering may increase stroke risk in patients with symptomatic major cerebral artery disease and impaired perfusion. To investigate the relationships among BP, impaired ...

Background The purpose of this study was to evaluate the correlation between a novel angiographic score for collaterals and CT perfusion (CTP) parameters in patients undergoing endovascular treatment ...

CT-based attenuation correction is a widely used option in commercial PET/CT scanners. However, as a result of a nonsimultaneous acquisition and differences in temporal resolution between both ...