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移动眼睛的机器人光学连贯断层扫描的活跃动作取消:一个迷眼幻影研究
Haochi Pan1, Chae Woo Lim1, Katelyn King1
1Department of Robotics, University of Michigan, 2505 Hayward St, Ann Arbor, MI USA.
概括
这项研究介绍了一种机器人光学连贯断层扫描 (OCT) 系统,该系统使用预测成像来减少运动工件. 这项创新旨在提高OCT成像准确性,用于患有非自愿头部和眼睛运动的患者,例如患有鼻.
科学领域:
- 眼科医生 眼科 眼科
- 生物医学工程 生物医学工程
- 医疗成像医学成像
背景情况:
- 光学连贯断层扫描 (OCT) 对于诊断和治疗眼病至关重要.
- 目前的OCT系统要求患者保持静止,不包括患有帕金森病或眼等非自愿头部/眼部运动的人.
- 运动文物显著降低了OCT图像质量.
研究的目的:
- 开发和评估具有主动运动取消的机器人OCT系统,以改善非自愿运动患者的成像.
- 为了减少在OCT获取过程中周期性头部和眼睛运动引起的图像工件.
主要方法:
- 结合了机器人OCT系统,允许灵活的患者定位,并积极取消周期性运动.
- 使用内置的瞳孔摄像头测量眼睛运动,以实时预测眼睛位置.
- 增强的OCT扫描波形基于预测的眼睛位置来抵消运动.
- 评估了系统使用眼睛幻影模拟nystagmus和帕金森病类似的运动.
主要成果:
- 在尼斯塔格姆频率下,已证明运动减少高达98.5%.
- 与单独扫描准相比,平均减少了3.4倍的残余运动工件.
- 使用OCT图像中的注册转移量化运动工件减少.
结论:
- 预测成像方案有效地减少了OCT的运动工件.
- 这种机器人OCT方法提高了无意识运动患者准确成像的可访问性.
- 该技术有可能在具有挑战性的患者群体中改善眼睛疾病的诊断和管理.
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