基于3D扫描的半自动测量与耳孔人类测量的直接测量的比较
Qingqing Zheng1, Fan Wang1, Yongxin Yang2
1Department of Plastic Surgery, State Key Laboratory of Trauma and Chemical Poisoning.
The Journal of craniofacial surgery
|January 7, 2026
概括
使用3D扫描的半自动测量 (SM) 比对耳道形态的直接测量 (DM) 更可复制和准确. 这种基于3D的技术为耳部评估和手术规划提供了重要的临床价值.
科学领域:
- 生物医学工程 生物医学工程
- 人类测量学 人类测量学.
- 医疗成像医学成像
背景情况:
- 准确的耳朵形态测量评估对于临床应用至关重要.
- 传统的直接测量 (DM) 可能是主观的,缺乏精度.
- 3D扫描技术为客观和精确的形态分析提供了潜力.
研究的目的:
- 为了比较半自动测量 (SM) 与直接测量 (DM) 的稳定性和准确性,用于耳部参数.
- 评估基于3D的SM方法的临床适用性.
主要方法:
- 一项自我控制的研究,涉及20名健康的志愿者 (40耳).
- 两位整形外科医生使用SM (3D扫描和犀牛8软件) 和DM进行了11个耳朵参数的重复测量.
- 通过使用类内相关系数 (ICC) 和可重复性系数 (CR) 来评估方法间的可靠性和准确性.
主要成果:
- 与DM (P<0.001) 相比,SM表现出明显更高的评分器间可靠性 (ICC) 和更高的准确性 (较低的CR).
- 布兰德-阿尔特曼分析证实SM的稳定性更高,变化性更低.
- 对于大多数使用SM的参数,在重复的时间点中没有发现测量的显著差异.
结论:
- 与DM相比,基于3D的SM方法为耳部形态评估提供了更高的可重现性和准确性.
- 这种技术提供了客观证据,支持将其纳入临床实践,用于耳部评估,手术规划和研究.
相关概念视频
01:30Equipments 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...
01:17Measurement of Blood Pressure
Assessing blood pressure is a standard procedure executed in virtually all medical environments. The method utilized today was established over a hundred years ago by an innovative Russian doctor, Dr. Nikolai Korotkoff. The soft ticking noise, known as Korotkoff sounds, heard while taking blood pressure readings results from turbulent blood flow within the vessels. The apparatus required for this procedure includes a sphygmomanometer, a blood pressure cuff attached to a gauge, and a stethoscope.