radiographic artifact

ra·di·o·graph·ic art·i·fact

(rā'dē-ō-graf'ik ahr'ti-fakt)
Blemish on a radiograph caused by heat, light, damaged screens, chemicals, dust, or improper handling of the x-ray film.
References in periodicals archive ?
In addition to the magnetic belt's potential medical applications, it yields very interesting radiographic artifacts.