Accuracy of ultrasound to measure the cricoid cartilage diameter in children

• DOI: 10.1111/aas.13687
• Publication Date: 2020-08-28T02:45:26Z
• Authors: Jianhong Hao; Jie Zhang; Zanqing Wu; Wenbo Cai; Buhuai Dong; Zhenguo Luo
• Keywords: Cricoid cartilage; Endotracheal tube; Expiration; Bland–Altman plot

Ultrasonography is used to pre-operatively predict the endotracheal tube size required for intubation by measuring cricoid cartilage diameter. This study aimed determine accuracy of ultrasound measurements transverse diameters in children.We examined 50 children who underwent magnetic resonance imaging (MRI) scans at HongHui Hospital, Xi'an Jiaotong University, from February 2019 December 2019. Each child MRI and measurement cartilage. The data measured each technique were compared using Bland-Altman analysis linear regression analysis.Results showed strong correlation level agreement between (r = 0.94, P < .001). estimated bias was 0.11 mm; precision, 0.25 limit agreement, -0.47 0.70 mm.Ultrasound a reliable tool children.