| 谭婷婷,杨楠,王春祥.基于体质量及体质量指数计算儿童胸腹部CT扫描体型特异性剂量估算值[J].中国介入影像与治疗学,2025,22(5):346-350 |
| 基于体质量及体质量指数计算儿童胸腹部CT扫描体型特异性剂量估算值 |
| Body mass and body mass index for calculating size specific dose estimate value of chest and abdominal CT in children |
| 投稿时间：2025-02-14 修订日期：2025-04-12 |
| DOI：10.13929/j.issn.1672-8475.2025.05.010 |
| 中文关键词: 儿童 体质量 体质量指数 体层摄影术，X线计算机 辐射剂量 |
| 英文关键词:child body weight body mass index tomography,X-ray computed radiation dosage |
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| 中文摘要: |
| 目的 观察以体质量及体质量指数（BMI）计算儿童胸腹部CT扫描体型特异性剂量估算（SSDE）值的价值。方法 回顾性收集接受胸部或腹部CT检查的486名儿童，其中201名接受胸部、285名接受腹部CT扫描；分别以软件、体质量及BMI计算SSDE并记为SSDEstandard、SSDEweight及SSDEBMI，分析前者与后二者的相关性及其一致性。结果 SSDEweight（胸部r=0.974、腹部r=0.972）及SSDEBMI（胸部r=0.933、腹部r=0.950）均与SSDEstandard呈高度相关（P均＜0.01）且一致性佳；胸、腹部CT扫描的SSDEweight与SSDEstandard，以及SSDEBMI与SSDEstandard的均方根误差分别为0.245、0.249及0.653、0.956。结论 基于体质量及BMI可更为便捷地计算儿童胸腹部CT扫描SSDE值，且与软件计算值的一致性佳。 |
| 英文摘要: |
| Objective To observe the value of body mass and body mass index （BMI） for calculating size specific dose estimate （SSDE） value of chest and abdominal CT in children. Methods Totally 486 children who underwent chest and abdominal CT scanning were retrospectively enrolled， including 201 underwent chest and 285 underwent abdominal CT scanning. SSDE value was calculated with software， body mass and BMI and recorded as SSDEstandard， SSDEweight and SSDEBMI， respectively， and the correlation and consistency between the former and the latter two were analyzed. Results SSDEweight （chest r=0.974， abdomen r=0.972） and SSDEBMI （chest r=0.933， abdomen r=0.950） were both highly correlated with SSDEstandard （all P＜0.01） and had good consistency. The root mean square error between SSDEweight and SSDEstandard of chest and abdominal CT was 0.245 and 0.249， between SSDEBMI and SSDEstandard was 0.653 and 0.956， respectively. Conclusion Body mass and BMI could be used to conveniently calculate SSDE value of chest and abdominal CT scanning in children， and the results had good consistency with that based on software. |
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