Perret R S, Sloop G D, Borne J A
Department of Radiology, Louisiana State University School of Medicine in New Orleans, 70112, USA.
J Ultrasound Med. 2000 Nov;19(11):727-30; quiz 731. doi: 10.7863/jum.2000.19.11.727.
We prospectively evaluated the diameter of the common bile duct in 1,018 patients between the ages of 60 to 96 over a 4 year period to determine if there is a significant change in its size with aging. All of the patients included in the study were being evaluated primarily for carotid or peripheral vascular disease. Any patients with a history of biliary disease (i.e., bilirubin level greater than 1.5 mg/ml, cholecystectomy, or cholelithiasis) were excluded. Ultrasonography of the common bile duct was performed only in those patients with no subjective abdominal pain or icterus. Our results demonstrated a small although statistically significant increase in the caliber of the common bile duct with increasing age (60 years old or less, mean diameter 3.6 mm +/- 0.2mm, versus over 85 years old, mean diameter 4 mm +/- 0.2 mm, P = 0.009). Although the common bile duct did increase in size with aging, 98% of all ducts remained below 6 to 7 mm, the commonly accepted upper range of normal.
我们前瞻性地评估了1018名年龄在60至96岁之间的患者在4年时间里胆总管的直径，以确定其大小是否会随着年龄增长而发生显著变化。该研究纳入的所有患者主要是因颈动脉或外周血管疾病而接受评估。任何有胆道疾病史（即胆红素水平高于1.5mg/ml、胆囊切除术或胆结石）的患者均被排除。仅对那些无主观腹痛或黄疸的患者进行胆总管超声检查。我们的结果显示，随着年龄增长，胆总管口径虽有小幅增加，但具有统计学意义（60岁及以下，平均直径3.6mm±0.2mm，85岁以上，平均直径4mm±0.2mm，P=0.009）。尽管胆总管大小确实会随着年龄增长而增加，但所有胆管中有98%仍低于6至7mm，这是普遍认可的正常上限。
