3D versus 2D ultrasound: accuracy of volume measurement in human cadaver kidneys.

Rationale And Objectives: Comparison of the accuracy of 3D and 2D ultrasound in assessing the volume of human cadaver kidneys.

Materials And Methods: Before autopsy the volume of 22 kidneys was assessed from a 3D data set after manually tracing organ contours (3D volumetry) and by applying a 3D ellipsoid formula both on a 3D data set and 2D images. Measurements by water-displacement served as the gold standard.