Atrial volume reduction correlates with early improvement in hemorrhage-associated normal pressure hydrocephalus-a 3D computed tomography volumetric study.

Significant reductions in absolute volumes of lateral ventricular subregions were observed post-ventriculoperitoneal shunting.

Postoperatively, the relative volume of the lateral body of the lateral ventricle increased, while that of other subregions decreased.

Reductions in the absolute volumes of the frontal horn, temporal horn, and atrium negatively correlated with early clinical improvement.