Table 2.

RSNA expert consensus statement on structured reporting for chest CT in COVID-19.

RSNA expert consensus statement on structured reporting for chest CT in COVID-1933
Classification	Rationale	Suggested reporting language
Typical	Imaging features with high specificity and commonly reported for COVID-19 pneumonia	“Commonly reported imaging features of COVID-19 pneumonia are present. Other processes such as influenza pneumonia and organizing pneumonia, as can be seen with drug toxicity and connective tissue disease can cause a similar imaging pattern.”
Indeterminate	Non-specific imaging features reported in COVID-19 pneumonia	“Imaging features can be seen in COVID-19 pneumonia, though are non-specific and can occur with a variety of infectious and non-infectious processes.”
Atypical	Uncommon or imaging features not reported in COVID-19 pneumonia	“Imaging features are atypical or uncommonly reported for COVID-19 pneumonia. Alternative diagnosis should be considered.”
Negative	No features of pneumonia	“No CT findings to indicate pneumonia” (Note: CT may be negative in initial stage of COVID-19)