👉 Unenhanced, as defined in the context of nuclear medicine and radiology, refers to a type of diagnostic imaging technique where the radiation dose is not significantly altered by the contrast agent used. This means that the amount of radiation exposure during an imaging scan is similar to what would be expected under standard conditions without use of the contrast agent. Unenhanced images are typically less expensive to produce and offer greater clinical benefits, but they may also result in decreased image quality due to the lack of contrast agents
