virtual nonenhanced
The contrast medium in the renal pelvis and ureters was from pyelographic phase and virtually removed excretory-phase images by using postprocessing software, resulting in virtual nonenhanced (VNE) images.
The contrast medium in the renal pelvis and ureters was from pyelographic phase and virtually removed excretory-phase images by using postprocessing software, resulting in virtual nonenhanced ( VNE ) images .