Photon-counting detector (PCD) CT is an emerging technology that has shown tremendous
progress in the last decade. Various types of PCD CT systems have been developed to …

BACKGROUND AND PURPOSE: The recently described posterior reversible encephalopathy
syndrome (PRES) classically consists of reversible vasogenic edema in the posterior …

… Reasons for exclusion were non-availability of images (n=113), postoperative scans (n=67),
scan had no non-contrast axial series (n=32), and patient younger than 7 years (n=22). …

Background: Mild cognitive impairment (MCI) is a recently described transitional clinical
state between normal aging and AD. Assuming that amnestic MCI patients had pathologic …

… Eight patients showed diffuse signal abnormalities, predominantly in the cerebellum (n =
5), the thalamus (n = 8), the frontal and parietal cortices (n = 8), and the hippocampus (n = 9). …

Arterial spin labeling (ASL) is a powerful noncontrast magnetic resonance imaging (MRI)
technique that enables quantitative evaluation of brain perfusion. To optimize the clinical and …

PURPOSE: To compare the regional diffusivity of water in the brains of normally aging
elderly people and patients with mild cognitive impairment (MCI) or Alzheimer disease. …

Central pontine myelinolysis (CPM) occurs in the setting of rapidly corrected hyponatremia,
especially in chronically debilitated patients. Conventional CT and MR imaging findings lag …

A case is presented in which a complex multicystic hemosiderin-containing lesion developed
adjacent to a previously documented developmental venous anomaly (venous angioma). …

BACKGROUND AND PURPOSE: A positive correlation between HCT and CT attenuation of
intravascular blood has long been assumed but has never been established by using …