Department of Ultrasound, Shengjing Hospital of China Medical University, Shenyang 110004, P.R. China.
J Pediatr Surg. 2013 Sep;48(9):1892-6. doi: 10.1016/j.jpedsurg.2012.11.047.
At present, the diagnostic criteria of congenital cholangiectasis are still vague.
The aim of this study was to assess the diameter references of the common bile duct (CBD) in pediatric population in different age groups with ultrasound.
The diameter of the common bile duct was measured with ultrasound in 343 Chinese Han children aged 1 day to 14 years (mean: 3.2 years, median: 2.8 years) who were all free of hepatic and biliary tract disease. The ultrasound records, gender, and age were collected for reviewed analysis.
A total of 343 children were included, and the CBD was clearly detected in 322 cases (93.9%). The mean diameter of this population was 1.58 ± 0.70 mm. (ranging from 0.4 to 4.4mm). Spearman correlation analysis showed that the diameter of CBD was positively associated with age (r=0.573, P<0.001). The percentile method demonstrated that the diameter references of CBD was as follows: ≤ 1 years: ≤ 2.26 mm; ≤ 4 years: ≤ 2.99 mm; ≤ 7 years: ≤ 3.03 mm; and ≤ 14 years: ≤ 4.10mm.
There was a close correlation between CBD width and the age. The range of CBD widths in each age group will be helpful in the diagnosis of biliary dilatation in childhood.
目前先天性胆管扩张症的诊断标准仍不明确。
本研究旨在通过超声评估不同年龄组儿童正常胆总管（CBD）的直径参考值。
对 343 例无肝、胆疾病的 1 天至 14 岁（平均 3.2 岁，中位数 2.8 岁）汉族儿童进行超声测量 CBD 直径，收集超声记录、性别和年龄进行回顾性分析。
共纳入 343 例儿童，322 例（93.9%）可清晰显示 CBD。该人群 CBD 平均直径为 1.58 ± 0.70mm（范围 0.4~4.4mm）。Spearman 相关分析显示 CBD 直径与年龄呈正相关（r=0.573，P<0.001）。百分位法显示 CBD 直径参考值为：≤1 岁：≤2.26mm；≤4 岁：≤2.99mm；≤7 岁：≤3.03mm；≤14 岁：≤4.10mm。
CBD 宽度与年龄密切相关。各年龄组 CBD 宽度范围有助于儿童胆道扩张的诊断。
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