ArticleBMC anesthesiology2021
Assessing the accuracy of ultrasound measurements of tracheal diameter: an in vitro experimental study.
Article in BMC anesthesiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 10 citations in OpenAlex.
- Changes of endotracheal tube cuff pressure and its indicators in laparoscopic resection of colorectal neoplasms: an observational prospective clinical trial. comment on: BMC anesthesiology. 2024 Nov 13;24(1):413.BMC anesthesiology · 2025Article
- Incorporating ultrasonography to the nutritional assessment process in intensive care settings to improve the prescription of enteral and parenteral nutrition: Benefits, practicality, and challenges.Saudi medical journal · 2024Review
- Effectiveness of ultrasonic measurement for the hyomental distance and distance from skin to epiglottis in predicting difficult laryngoscopy in children.European radiology · 2023Article
- An initial framework for use of ultrasound by speech and language therapists in the UK: Scope of practice, education and governance.Ultrasound (Leeds, England) · 2023Article
- Point-of-Care Ultrasound in Airway Evaluation and Management: A Comprehensive Review.Diagnostics (Basel, Switzerland) · 2023Review
- Point-of-care ultrasound-guided submucosal paclitaxel injection in tracheal stenosis model.Journal of translational internal medicine · 2023Article
- Airway Ultrasound for Anesthesia and in Intensive Care Patients-A Narrative Review of the Literature.Journal of clinical medicine · 2022Review
- Relationship between the mean diameter of the thyroid lobes and the transverse diameter of the trachea: an ultrasound marker for goiters.Radiologia brasileiraArticle
Corrections and comments
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Authors and funding
7 authors at 3 institutions in 1 country.
Funding
Abstract
backgroundRecent studies indicate that ultrasound can detect changes in tracheal diameter during endotracheal tube (ETT) cuff inflation. We sought to assess the accuracy of ultrasound measurement of tracheal diameter, and to determine the relationship between tracheal wall pressure (TWP), cuff inflation volume (CIV), and the degree of tracheal deformation.
methodsOur study comprised two parts: the first included 45 porcine tracheas, the second 41 porcine tracheas. Each trachea was intubated with a cuffed ETT, which was connected to an injector and the manometer via a three-way tap. The cuff was inflated and the cuff pressure recorded before and after intubation. The tracheal diameter was measured using ultrasound. This included three separate measurements: outer transverse diameter (OTD), internal transverse diameter (ITD), and anterior tracheal wall thicknesses (ATWT). A precision electronic Vernier caliper was also used to measure tracheal diameter. We calculated TWP and the percentage change of tracheal diameter. The Bland-Altman method, linear regression, and locally weighted regression (LOESS) were used to analyze the data.
resultsThere were strong correlation and agreement for OTD (r = 0.97, P < 0.001) and ITD (r = 0.90, P < 0.001) as measured by ultrasound and by precision electronic Vernier caliper, but a poor correlation for ATWT (r = 0.58, P < 0.001). There was a strong correlation between the percentage change of OTD (OTD%, r = 0.75, P < 0.001) and CIV, the percentage change of ITD (ITD%, r = 0.77, P < 0.001) and CIV, TWP (r = 0.75, P < 0.001) and CIV. And a strong correlation was also found between TWP and OTD% (r = 0.84, P < 0.001), TWP and ITD% (r = 0.84, P < 0.001).
conclusionsUse of ultrasound to measure OTD and ITD is accurate, but is less accurate for ATWT. There is a close correlation between OTD%, ITD%, CIV and TWP.
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