Hao Jianhong, Zhang Jie, Wu Zanqing, Cai Wenbo, Dong Buhuai, Luo Zhenguo
Department of Anesthesiology, HongHui Hospital, Xi'an JiaoTong University, Xi'an, China.
Acta Anaesthesiol Scand. 2020 Nov;64(10):1426-1430. doi: 10.1111/aas.13687. Epub 2020 Sep 13.
Ultrasonography is used to pre-operatively predict the endotracheal tube size required for intubation by measuring the cricoid cartilage diameter. This study aimed to determine the accuracy of ultrasound measurements of the transverse diameters of the cricoid cartilage in children.
We examined 50 children who underwent magnetic resonance imaging (MRI) scans at the HongHui Hospital, Xi'an Jiaotong University, from February 2019 to December 2019. Each child underwent MRI and ultrasound scans for measurement of the transverse diameters of the cricoid cartilage. The data measured by each technique were compared using Bland-Altman analysis and linear regression analysis.
Results of linear regression and Bland-Altman analysis showed strong correlation in the level of agreement between MRI and ultrasound measurements (r = 0.94, P < .001). The estimated bias was 0.11 mm; precision, 0.25 mm; and the limit of agreement, -0.47 to 0.70 mm.
Ultrasound is a reliable tool for measuring the transverse diameters of the cricoid cartilage in children.
超声检查用于术前通过测量环状软骨直径来预测插管所需的气管导管尺寸。本研究旨在确定超声测量儿童环状软骨横径的准确性。
我们对2019年2月至2019年12月在西安交通大学附属红会医院接受磁共振成像（MRI）扫描的50名儿童进行了检查。每名儿童均接受了MRI和超声扫描，以测量环状软骨的横径。使用Bland-Altman分析和线性回归分析对每种技术测量的数据进行比较。
线性回归和Bland-Altman分析结果显示，MRI和超声测量之间的一致性水平具有强相关性（r = 0.94，P <.001）。估计偏差为0.11毫米；精密度为0.25毫米；一致性界限为-0.47至0.70毫米。
超声是测量儿童环状软骨横径的可靠工具。
