Comprehensive literature review on the radiographic findings, imaging modalities, and the role of radiology in the COVID-19 pandemic

Table 1 Association between CO-RADS categories and level of suspicion for pulmonary involvement of coronavirus disease 2019

CO-RADS category	Suspicion level for pulmonary involvement of COVID-19	Summary
0	Not interpretable	Scan insufficient for assigning score
1	Very low	Normal or non-infectious scan
2	Low	Typical for other infection but not COVID-19
3	Ambiguous	Non-specific features of COVID-19
4	High	Increased suspicion of COVID-19
5	Very high	Typical features of COVID-19
6	Proven	Positive RT-PCR test for COVID-19

Table modified from Prokop et al[69]. COVID-19: Coronavirus disease 2019.