RT Journal Article SR Electronic T1 Artifact from 131I-Contaminated Mask in Postradioiodine Therapy Scintigraphy JF Journal of Nuclear Medicine Technology JO J. Nucl. Med. Technol. FD Society of Nuclear Medicine SP 356 OP 357 DO 10.2967/jnmt.121.262438 VO 49 IS 4 A1 Francesca Betti A1 Luca Antonacci A1 Duccio Volterrani YR 2021 UL http://tech.snmjournals.org/content/49/4/356.abstract AB A patient wearing the mandatory face mask because of the ongoing coronavirus disease 2019 pandemic underwent postradioiodine therapy scintigraphy. The spot view of the neck showed an area of uptake that was later demonstrated to be caused by contamination of the mask. This finding has led to updating the scan procedure for posttherapy scintigraphy by replacing the patients’ masks before the scan acquisition.