Fig. 1From: Factors associated with lung cytology as obtained by non-endoscopic broncho-alveolar lavage in group-housed calvesAnatomical distribution of lung lesions grouped by ultrasound lesion score (ULS) from 352 indoor group-housed calves. ULS 0 = only normal reverberation artefacts; ULS 1 = < 8 comet-tail artefacts in one image present; ULS 2 = diffuse (> 8) comet-tail artefacts without presence of hypoechogenic consolidations; ULS 3 = hypoechogenic consolidation < 1 cm in depth; ULS 4 = hypoechogenic consolidation 1–3 cm in depth; ULS 5 = hypoechogenic consolidation > 3 cm in depthBack to article page