What is the role of flat-panel volumetric CT in the initial diagnosis of aSAH?
Flat-panel volumetric CT is a relatively recent development that allows the generation of CT-like images from a rotational 3-dimensional spin of the x-ray gantry in the angiography room. For the moment, it has no substantial role in the initial diagnosis of aSAH because its spatial and contrast resolutions are not high enough123; however, this technology can be used intraprocedurally during embolizations to rule out hydrocephalus.124