Popis: |
To investigate alterations in the periventricular gray-white matter ratio (GWR) on computed tomography (CT) in patients with idiopathic normal pressure hydrocephalus (INPH), a total of 140 patients with INPH and 52 age-and sex-matched controls were included by using Japanese guidelines published in 2021: possible, probable, and definite INPH for a retrospective case-control study. The non-enhanced brain CT was reviewed, and the Hounsfield unit (HU) was semi-quantitatively measured using the region of interest (ROI). The size (40 mm |