Table 2.

Differences between the imaging modalities

	CT	CXR	LUS
Benefit	•high sensitivity •high specificity	•fast •broadly available	•portable •radiation-free •broadly available
Drawback	•patient transportation •low availability •radiation dose •increased workload for disinfection	•low sensitivity •non-specific •large volume of radiographs leads to increased workload	•user-dependent •non-specific •long acquisition time •requires patient interaction
Clinical role	•diagnose additional complications •rule out additional etiologies of symptoms (effusions, bacterial pneumonia)	•initial diagnosis •monitoring clinical progression •detection of complications	•triage •point-of-care monitoring for specific tasks