AD	Alzheimer’s Disease
AQP4	Aquaporin-4
BBB	Blood–Brain Barrier
CNS	Central Nervous System
CSF	Cerebrospinal Fluid
DTI-ALPS	Diffusion Tensor Imaging along the Perivascular Space
ICP	Intracranial Pressure
ICH	Intracerebral Hemorrhage
INPH	Idiopathic Normal Pressure Hydrocephalus
ISF	Interstitial Fluid
MRI	Magnetic Resonance Imaging
NPH	Normal Pressure Hydrocephalus
NREM	Non-Rapid Eye Movement
SAH	Subarachnoid Hemorrhage
TBI	Traumatic Brain Injury
tPA	Tissue Plasminogen Activator