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Ultrasound: A novel tool for airway imaging.

Parmar SB, Mehta HK, Shah NK, Parikh SN, Solanki KG - J Emerg Trauma Shock (2014)

Bottom Line: We included 100 adult, healthy volunteers of either sex to undergo airway imaging systemically starting from floor of the mouth to the sternal notch in anterior aspect of neck by sonography.Interface between air and mucosa lining the airway produced a bright hyperechoic linear appearance.Artifacts created by intraluminal air prevented visualization of posterior pharynx, posterior commissure, and posterior wall of trachea.

View Article: PubMed Central - PubMed

Affiliation: Department of Anaesthesiology, Byramjee Jeejeebhoy Medical College, Ahmedabad, Gujarat, India.

ABSTRACT

Context: The scope of ultrasound is emerging in medical science, particularly outside traditional areas of radiology practice.

Aims: We designed this study to evaluate feasibility of bedside sonography as a tool for airway assessment and to describe sonographic anatomy of airway.

Settings and design: A prospective, clinical study.

Materials and methods: We included 100 adult, healthy volunteers of either sex to undergo airway imaging systemically starting from floor of the mouth to the sternal notch in anterior aspect of neck by sonography.

Results: We could visualize mandible and hyoid bone as a bright hyperechoic structure with hypoechoic acoustic shadow underneath. Epiglottis, thyroid cartilage, cricoid cartilage, and tracheal rings appeared hypoechoic. Vocal cords were visualized through thyroid cartilage. Interface between air and mucosa lining the airway produced a bright hyperechoic linear appearance. Artifacts created by intraluminal air prevented visualization of posterior pharynx, posterior commissure, and posterior wall of trachea.

Conclusions: Ultrasound is safe, quick, noninvasive, repeatable, and bedside tool to assess the airway and can provide real-time dynamic images relevant for several aspects of airway management.

No MeSH data available.


Related in: MedlinePlus

Transverse view at level of cricoid cartilage using a linear transducer. The scan shows cricoid cartilage (asterisks), air-mucosal interface (arrowheads), comet tail artifacts (CTA), and strap muscles (SM)
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Figure 10: Transverse view at level of cricoid cartilage using a linear transducer. The scan shows cricoid cartilage (asterisks), air-mucosal interface (arrowheads), comet tail artifacts (CTA), and strap muscles (SM)

Mentions: Cricoid cartilage appeared as a round hypoechoic structure in parasagittal view [Figures 6 and 9] and as an arch-like structure in transverse view [Figure 10]. Posterior surface of it was delineated by a bright air mucosal interface and reverberation artifacts.[56789]


Ultrasound: A novel tool for airway imaging.

Parmar SB, Mehta HK, Shah NK, Parikh SN, Solanki KG - J Emerg Trauma Shock (2014)

Transverse view at level of cricoid cartilage using a linear transducer. The scan shows cricoid cartilage (asterisks), air-mucosal interface (arrowheads), comet tail artifacts (CTA), and strap muscles (SM)
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4126113&req=5

Figure 10: Transverse view at level of cricoid cartilage using a linear transducer. The scan shows cricoid cartilage (asterisks), air-mucosal interface (arrowheads), comet tail artifacts (CTA), and strap muscles (SM)
Mentions: Cricoid cartilage appeared as a round hypoechoic structure in parasagittal view [Figures 6 and 9] and as an arch-like structure in transverse view [Figure 10]. Posterior surface of it was delineated by a bright air mucosal interface and reverberation artifacts.[56789]

Bottom Line: We included 100 adult, healthy volunteers of either sex to undergo airway imaging systemically starting from floor of the mouth to the sternal notch in anterior aspect of neck by sonography.Interface between air and mucosa lining the airway produced a bright hyperechoic linear appearance.Artifacts created by intraluminal air prevented visualization of posterior pharynx, posterior commissure, and posterior wall of trachea.

View Article: PubMed Central - PubMed

Affiliation: Department of Anaesthesiology, Byramjee Jeejeebhoy Medical College, Ahmedabad, Gujarat, India.

ABSTRACT

Context: The scope of ultrasound is emerging in medical science, particularly outside traditional areas of radiology practice.

Aims: We designed this study to evaluate feasibility of bedside sonography as a tool for airway assessment and to describe sonographic anatomy of airway.

Settings and design: A prospective, clinical study.

Materials and methods: We included 100 adult, healthy volunteers of either sex to undergo airway imaging systemically starting from floor of the mouth to the sternal notch in anterior aspect of neck by sonography.

Results: We could visualize mandible and hyoid bone as a bright hyperechoic structure with hypoechoic acoustic shadow underneath. Epiglottis, thyroid cartilage, cricoid cartilage, and tracheal rings appeared hypoechoic. Vocal cords were visualized through thyroid cartilage. Interface between air and mucosa lining the airway produced a bright hyperechoic linear appearance. Artifacts created by intraluminal air prevented visualization of posterior pharynx, posterior commissure, and posterior wall of trachea.

Conclusions: Ultrasound is safe, quick, noninvasive, repeatable, and bedside tool to assess the airway and can provide real-time dynamic images relevant for several aspects of airway management.

No MeSH data available.


Related in: MedlinePlus