There are multiple definitions:

1. therapeutic use exemption(English)

   • ATUE, TUEC
   • Sports medicine, Pharmacology / pharmaceutics
   • https://www.wor…cation-Form.pdf

2. true unenhanced [image](English)

   • replacement of TUE with VUE images may not be advisable for renal CT exams
   • CT, DECT, HU, VUE
   • Medical imaging, Kidney and adrenals
   • https://doi.org…1002/acm2.12685