Fig. 4From: The role of video-fluoroscopy in the assessment of obstructive sleep apnea patients: comparative studyDISE at retropalatal level (A) at rest and (B) during snoring grade III circular collapse. DISE at retroglossal level (C) at rest and (D) during snoring grade II circular collapse. DISE at hypopharyngeal level (E) at rest and (F) during snoring grade IV collapseBack to article page