"Conversely, at least in mammography, it has been found that women keeping their brassieres on improves dose-reduction techniques. The same study also showed that the metal components of patients' bras did not have any adverse effect with regards to diagnostic accuracy 3."
"Clothing artifacts, like jewellery artifacts, are a regular feature on imaging examinations, especially plain radiographs, but in general are recognised for what they are, either at the time the image is taken by the radiographer, or later by the reporting radiologist. The radiographer will often either retake the image after the patient has removed the offending garment, or more commonly they will label the image with a warning that clothing artifact is present to avoid any misinterpretation taking place."