影响增强现实头戴设备在真实OR中的性能的因素
Daniel Suter1,2, Sandro Hodel3,4, Florentin Liebmann3
1Research in Orthopedic Computer Science, University Hospital Balgrist, University of Zurich, Balgrist Campus, Lengghalde 5, 8008, Zurich, Switzerland. dapesu@bluewin.ch.
概括
增强现实头戴设备 (AR-HMD) 在骨科手术中显示出潜力,但对手术室 (OR) 条件敏感. 优化OR设置,特别是照明,对于AR-HMD在真实外科环境中的可靠性能至关重要.
科学领域:
- 医学技术 医学技术 医学技术
- 手术方面的创新.
- 计算机辅助手术是计算机辅助的手术.
背景情况:
- 使用头戴设备 (HMD) 的增强现实 (AR) 越来越多地被用于骨科手术.
- 大多数研究都是临床前的;现实世界的手术室 (OR) 性能仍未得到充分研究.
- OR 面临着影响AR-HMD 功能的独特挑战.
研究的目的:
- 为了评估AR-HMD在现场手术室 (OR) 环境中的性能.
- 在OR环境中识别影响AR-HMD准确性和可用性的混因素.
- 为了比较AR-HMD在受控实验室和真实手术室之间的性能.
主要方法:
- 两个用户在OR和实验室设置中测试了HoloLens 2上的AR应用程序.
- 关键指标包括全息覆盖精度,任务完成时间,注册成功率和覆盖延迟.
- 或环境因素 (照明,隔墙,人员流动) 系统地变化.
主要成果:
- 在OR (48s) 和实验室 (33s) 中,完全注册的时间明显更长.
- 其他参数在最佳OR设置下没有显著差异.
- 手术部位的直接光照是对AR-HMD性能最不利的因素.
结论:
- 操作室 (OR) 的设置显著影响AR-HMD的性能.
- 标准化措施,如控制直接光线,使用隔墙,并最大限度地减少人员移动,提高AR-HMD的可靠性.
- 为了有效的外科整合,AR-HMDs需要仔细考虑环境问题.
相关概念视频
Social Facilitation
Not all intergroup interactions lead to negative outcomes. Sometimes, being in a group situation can improve performance. Social facilitation occurs when an individual performs better when an audience is watching than when the individual performs the behavior alone. This typically occurs when people are performing a task for which they are skilled.
Buffer Effectiveness
Buffer solutions do not have an unlimited capacity to keep the pH relatively constant . Instead, the ability of a buffer solution to resist changes in pH relies on the presence of appreciable amounts of its conjugate weak acid-base pair. When enough strong acid or base is added to substantially lower the concentration of either member of the buffer pair, the buffering action within the solution is compromised.
The buffer capacity is the amount of acid or base that can be added to a given volume...
The buffer capacity is the amount of acid or base that can be added to a given volume...
Doppler Effect - II
The Doppler effect has several practical, real-world applications. For instance, meteorologists use Doppler radars to interpret weather events based on the Doppler effect. Typically, a transmitter emits radio waves at a specific frequency toward the sky from a weather station. The radio waves bounce off the clouds and precipitation and travel back to the weather station. The radio frequency of the waves reflected back to the station appears to decrease if the clouds or precipitation are moving...
Equipments Used To Measure Blood Pressure
Direct Method
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
Factors Affecting Perception
Perception is influenced by perceptual set, context, motivation, and emotion. Perceptual set, or perceptual expectancy, refers to the tendency to perceive things in a particular way, influenced by previous experiences and expectations. This phenomenon affects the interpretation of stimuli, creating a set of mental tendencies and assumptions that impact sensory perceptions of sound, taste, touch, and sight.
An illustrative example of a perceptual set is the scenario where an airline pilot told...
An illustrative example of a perceptual set is the scenario where an airline pilot told...
Actor-Observer Effect
The actor-observer effect, a cognitive bias closely linked to the fundamental attribution error, refers to the tendency for individuals to attribute their behavior to external, situational factors while explaining others’ behavior in terms of internal, dispositional traits. This asymmetry in attribution significantly influences social perception and judgment.Cognitive Mechanisms Behind the EffectTwo primary psychological mechanisms contribute to the actor-observer effect: differences in visual...


