Unusual perfusion patterns on perfusion-only SPECT/CT scans in COVID-19 patients

ConclusionsHeterogeneous perfusion abnormalities were found in most of COVID-19 patients: parenchymal lesions with normal, decreased or increased perfusion and perfusion defects in healthy lung areas. These phenomena may be explained by the failure of the hypoxic pulmonary vasoconstriction mechanism and presence of pulmonary thrombosis and embolism.
Source: Annals of Nuclear Medicine - Category: Nuclear Medicine Source Type: research