Department of Clinical Radiology, Royal London Hospital, London, UK.
Department of Clinical Radiology, St. Bartholomew's Hospital, London, UK.
Pediatr Radiol. 2021 Mar;51(3):385-391. doi: 10.1007/s00247-020-04839-2. Epub 2020 Oct 6.
Ligamentum arteriosum calcification may be a normal finding in some children, although the frequency has not been well described.
To estimate the frequency of ligamentum arteriosum calcification in children at postmortem imaging.
We conducted a single-centre retrospective review of paediatric postmortem CT and chest radiographic imaging over a 6-year period (January 2012 to December 2018). Two independent reviewers assessed the presence of calcification on imaging. We calculated descriptive statistical analysis of ligamentum arteriosum calcification frequency and association with age and gender.
During the study period, 220 children underwent whole-body postmortem CT and 182 underwent radiographic imaging. The frequency was higher on postmortem CT than plain radiographs (67/220, 30.5% vs. 3/182, 1.6%) and was highest in children ages 1-7 years (53.6-66.7%), with gradual reduction in frequency in older children, and none in children older than 12 years. There was no gender predilection.
In the postmortem setting, ligamentum arteriosum calcification is a common finding in children <8 years of age. It can be better identified on postmortem CT than chest radiographs. Radiologists new to reporting postmortem paediatric CT studies should recognise this as a common normal finding to avoid unnecessary further investigations at autopsy.
虽然韧带动脉钙化在某些儿童中可能是一种正常表现，但尚未很好地描述其发生频率。
评估尸检影像学中儿童韧带动脉钙化的发生频率。
我们对 6 年间（2012 年 1 月至 2018 年 12 月）进行的小儿尸检 CT 和胸部 X 线摄影检查进行了单中心回顾性研究。两位独立的审查员评估了影像学上钙化的存在。我们对韧带动脉钙化的发生频率及其与年龄和性别之间的相关性进行了描述性统计分析。
在研究期间，220 例儿童接受了全身尸检 CT 检查，182 例接受了 X 线摄影检查。尸检 CT 上的钙化频率高于普通 X 线片（67/220，30.5%比 3/182，1.6%），1-7 岁儿童的频率最高（53.6%-66.7%），随着年龄的增长频率逐渐降低，12 岁以上的儿童则无钙化。无性别偏好。
在尸检环境中，韧带动脉钙化在<8 岁的儿童中是一种常见表现。与胸部 X 线片相比，它在尸检 CT 上更容易识别。对于刚开始进行小儿尸检 CT 研究报告的放射科医生，应将其视为一种常见的正常表现，以避免在尸检时进行不必要的进一步检查。
