Body mass and body mass index for calculating size specific dose estimate value of chest and abdominal CT in children
10.13929/j.issn.1672-8475.2025.05.010
- VernacularTitle: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
- Author:
Tingting TAN
1
;
Nan YANG
1
;
Chunxiang WANG
1
Author Information
1. 天津市儿童医院(天津大学儿童医院)影像科,天津 300134;天津市儿童出生缺陷防治重点实验室,天津 300134
- Publication Type:Journal Article
- Keywords:
child;
body weight;
body mass index;
tomography,X-ray computed;
radiation dosage
- From:
Chinese Journal of Interventional Imaging and Therapy
2025;22(5):346-350
- CountryChina
- Language:Chinese
-
Abstract:
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.
