Optimization of Multi–Detector Row CT Urography: Effect of Compression, Saline Administration, and Prolongation of Acquisition Delay

Abstract

Compression does not significantly improve distention or opacification of the urinary tract. Saline hydration is effective in improving opacification of the proximal urinary tract. Longer imaging delays improve distention of the proximal urinary tract and may aid in visualization of the lower segment of the ureter.