title: Nonfunctional photomultiplier tubes can produce subtle total-body scan defects.
abstract: Nonfunctional photomultiplier tubes produce subtle total body scan defects. The resultant scan shows bands of reduced activity which are far less obvious than those seen on a standard image.
mesh_terms: D006801:Humans; D011877:Radionuclide Imaging / Q000295:instrumentation* / Q000592:standards