Published December 3, 2020 as 10.3174/ajnr.A6943 e are not always absolutely certain that what we see on WMRI truly represents tissue injury, but there are consistent changes in the images of the olfactory bulbs in patients with coro- navirus disease 2019 (COVID-19). We understand the reason for Dr Alex Mamourian’sques- tions and confess that initially, we also had the same doubts that he expressed in his letter, when for the first time, we were faced with the images of olfactory bulb injuries in these patients with COVID-19. The question arises about whether these are artifacts or do they truly represent an abnormality in the olfactory bulbs? To make sure that the findings we were identifying in the olfac- tory bulbs of patients with COVID-19 were real and abnormal, we reviewed healthy olfactory pathway of subjects from our data base with pre- and/or postcontrast fat-suppression T1WI and STIR of the orbit MRIs performed before the COVID-19 pan- demic. We compared them with our data base because we did not find any article in the literature describing the normal aspect of the olfactory bulbs in pre- and postcontrast fat-suppression T1WI or on STIR. We would like to reply to Dr Alex
American Journal of Neuroradiology – American Journal of Neuroradiology
Published: Dec 3, 2020
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