上海交通大学学报（医学版）2025，Vol.45Issue(11)：1502-1506,5.DOI:10.3969/j.issn.1674-8115.2025.11.009
自动管电流调制对髋关节机器人CT辐射剂量及图像质量的影响
Effect of automatic tube current modulation on radiation dose and image quality of robotic-assisted hip CT
摘要
Abstract
Objective·To evaluate the feasibility of automatic tube current modulation(ATCM)in reducing radiation dose during preoperative CT imaging for robotic-assisted hip arthroplasty and to assess its impact on image quality.Methods·A total of 106 patients undergoing CT scans for robotic-assisted hip arthroplasty at Nanjing Drum Tower Hospital(from November 2021 to October 2024)were prospectively enrolled.Participants were randomly divided into Group A(n=56)and Group B(n=50).The patients in Group A underwent ATCM scanning,and the patients in Group B underwent partial fixed tube current scanning for hip imaging.Radiation dose parameters included volume CT dose index(CTDIvol)and dose-length product(DLP).Image quality was evaluated using signal-to-noise ratio(SNR),contrast-to-noise ratio(CNR),and objective noise.Age,gender,body mass index(BMI),scan length,CTDIvol,DLP,SNR,CNR,noise,and image qualification rate were compared between the two groups.Results·No statistically significant differences were observed between the two groups in baseline characteristics(gender,age,and BMI),scan length,image qualification rate,SNR,CNR,or objective noise(all P＞0.05).However,Group A demonstrated significantly lower CTDIvol and DLP compared to Group B(both P＜0.001).Conclusion·The use of ATCM in preoperative CT imaging for robotic-assisted hip surgery significantly reduces radiation dose while maintaining image quality sufficient for 3D modeling requirements.关键词
髋关节/机器人辅助技术/自动管电流调制/辐射剂量Key words
hip joint/robotic-assistive technology/automatic tube current modulation/radiation dose分类
医药卫生引用本文复制引用
HU Jie,YANG Xianfeng..自动管电流调制对髋关节机器人CT辐射剂量及图像质量的影响[J].上海交通大学学报（医学版）,2025,45(11):1502-1506,5.基金项目
江苏省体育局重大体育科研课题(STT221107) （STT221107）
上海市人类运动能力开发与保障重点实验室开放课题(11DZ2261100) （11DZ2261100）
江苏省博士后科研资助计划(2021-188). Jiangsu Province Sports Bureau Major Sports Research Project(STT221107) （2021-188）
Shanghai Key Laboratory of Human Movement Ability Development and Support Open Project(11DZ2261100) （11DZ2261100）
Jiangsu Postdoctoral Research Funding Program(2021-188). （2021-188）
