PMID- 28101365 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20201001 IS - 2052-0492 (Print) IS - 2052-0492 (Electronic) IS - 2052-0492 (Linking) VI - 5 DP - 2017 TI - Comments to Role of upper airway ultrasound in airway management. PG - 10 LID - 10.1186/s40560-016-0204-x [doi] LID - 10 AB - Tracheal ultrasound can be an alternative diagnostic tool in airway management, besides traditional confirmatory methods such as capnography and auscultation. The standard image is a hyperechoic air-mucosa (A-M) interface with a reverberation artifact posteriorly (comet-tail artifact). If the second A-M interface appears, which we call a "double-tract sign," esophageal intubation is considered. FAU - Lien, Wan-Ching AU - Lien WC AD - Department of Emergency Medicine, College of Medicine, National Taiwan University and National Taiwan University Hospital, Hsin-Chu Branch, No.25, Lane 442, Sec.1, Jingguo Rd, Hsinchu City 300, Taiwan. LA - eng PT - Journal Article DEP - 20170113 PL - England TA - J Intensive Care JT - Journal of intensive care JID - 101627304 PMC - PMC5237243 OTO - NOTNLM OT - Airway OT - Air-mucosa interface OT - Double-tract sign OT - Ultrasound EDAT- 2017/01/20 06:00 MHDA- 2017/01/20 06:01 PMCR- 2017/01/13 CRDT- 2017/01/20 06:00 PHST- 2016/11/26 00:00 [received] PHST- 2016/12/27 00:00 [accepted] PHST- 2017/01/20 06:00 [entrez] PHST- 2017/01/20 06:00 [pubmed] PHST- 2017/01/20 06:01 [medline] PHST- 2017/01/13 00:00 [pmc-release] AID - 204 [pii] AID - 10.1186/s40560-016-0204-x [doi] PST - epublish SO - J Intensive Care. 2017 Jan 13;5:10. doi: 10.1186/s40560-016-0204-x. eCollection 2017.