The measurement unit used for dose is the millirem, or mrem for short. Deep dose equivalent (DDE) measures dose to the trunk of the body, lens dose equivalent (LDE) to the lens of the eye, shallow dose equivalent (SDE) to the skin, and extremity (EXT) to the body below the elbow and below the knee.
For more information on how to interpret your dose reports, please visit https://vimeo.com/286558069 for a short video walkthrough.