Fig. 4
From: MRI imaging characteristics of brainstem and midbrain aqueduct in patients with iNPH
Illustration of cisternal spaces surrounding the brainstem. (a) The total cisternal space is composed primarily of the interpeduncular, prepontine, medullary, and cerebellomedullary cisterns. The cerebral aqueduct and fourth ventricle are also shown. (b) Prepontine cistern in sagittal cross-section resembling a hammer.
