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 ...

Conclusion: Although a relationship exists between the severity of CAD on multislice CT and myocardial perfusion abnormalities on SPECT, analysis on a regional basis showed only moderate agreement ...

"Neither CT perfusion nor CT angiography met the prespecified threshold of greater than 98 percent for both sensitivity and specificity. Consequently, they should not be used as standalone tests ...

(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).

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.

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 ...

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, ...

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 ...