Table 2.

Distribution of LUS patterns, CXR readings (n), CT findings (n) and RT-PCR results (n) in 60 cases with disagreement between LUS and CXR, out of 139 patients suspected of COVID-19

LUS pattern	CXR positive	CXR negative	CXR indeterm	CXR atypical	CT typical	CT negative	CT indeterm	CT atypical	RT-PCR positive	RT-PCR negative
HighLUS (n = 27)	–	8	12	7	11	0	0	0	24	3
IntLUS (n = 14)	2	10	–	2	0	0	3	1	8	6
AltLUS (n = 13)	5	6	2	–	0	1	1	6	2	11
LowLUS (n = 6)	0	–	3	3	0	2	0	0	3	3

LUS  Lung Ultrasound, CXR  Chest X-Ray, CT Computed Tomography of the chest, RT-PCR  Reverse Transcriptase-Polymerase Chain reaction, COVID-19 Corona Virus Disease 2019, HighLUS  High Probability Lung Ultrasound, LowLUS  Low Probability Lung Ultrasound, IntLUS Intermediate Probability Lung Ultrasound, AltLUS  Alternative Probability Lung Ultrasound, Indeterm  indeterminate