膝盖动态CT扫描:将举重与实时运动获取相结合
Luca Buzzatti1, Benyameen Keelson2, Joris Willem van der Voort3
1Vrije Universiteit Brussel (VUB), Experimental Anatomy Research Group (EXAN), Laarbeeklaan 103, 1090 Brussels, Belgium; School of Allied Health, Anglia Ruskin University (ARU), Young Street, CB1 1PT Cambridge, UK.
The Knee
|August 19, 2023
概括
一个新的设备可靠地模拟动态CT扫描期间的膝盖承重运动. 这使得在健康个体和患有骨关节疼痛综合征的人群中,可以更好地对下肢功能进行成像.
科学领域:
- 生物力学 生物力学
- 医疗成像医学成像
- 整形外科 整形外科 整形外科
背景情况:
- 承重下肢成像对于功能性关节评估至关重要.
- 传统CT扫描仪的水平床限制了现实的承重模拟.
- 一个新的设备旨在克服动态CT采集的这些局限性.
研究的目的:
- 在水平CT设置中验证一个模拟实际膝盖承重运动的装置.
- 在模拟轴承时评估动力学和表面EMG (sEMG) 数据的可靠性.
- 为了处理动态CT图像进行定量膝关节评估.
主要方法:
- 20名健康的志愿者使用35%~55%的体重 (%BW) 负荷进行了"静止"和"水平".
- 动力学和sEMG数据的可靠性是使用类内相关系数 (ICC) 和标准测量误差 (SEM) 进行评估的.
- 该设备在健康志愿者和患有骨骨疼痛综合征的患者的动态CT扫描中进行了测试.
主要成果:
- 在42%BW负载下观察到sEMG和动力学的最佳可靠性.
- 该设备在动态CT采集过程中证明了安全性和可靠性.
- 定量指标 (小腿骨 - 结核病 - 喉 - 沟距离,两侧截肢偏移,侧侧骨倾斜) 显示了健康膝盖和病态膝盖之间的初步差异.
结论:
- 开发的设备可靠地模拟水平位置的静止坐.
- 这个设备的动态CT成像成功地捕获了承重膝盖运动的动力参数.
- 该技术对评估健康和病态膝关节状况充满希望.
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