Smart Sensor-Based Motion Detection System for Hand Movement Training in Open Surgery
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- 作者：Xinyao Sun ; Simon Byrns ; Irene Cheng ; Bin Zheng ; Anup Basu
- 关键词：Surgical dexterity ; Training performance evaluation ; Hidden Markov Model ; Smart sensor detection ; Leap Motion Controller
- 刊名：Journal of Medical Systems
- 出版年：2017
- 出版时间：February 2017
- 年：2017
- 卷：41
- 期：2
- 全文大小：
- 刊物类别：Mathematics and Statistics
- 刊物主题：Health Informatics; Health Informatics; Statistics for Life Sciences, Medicine, Health Sciences;
- 出版者：Springer US
- ISSN：1573-689X
- 卷排序：41
文摘
We introduce a smart sensor-based motion detection technique for objective measurement and assessment of surgical dexterity among users at different experience levels. The goal is to allow trainees to evaluate their performance based on a reference model shared through communication technology, e.g., the Internet, without the physical presence of an evaluating surgeon. While in the current implementation we used a Leap Motion Controller to obtain motion data for analysis, our technique can be applied to motion data captured by other smart sensors, e.g., OptiTrack. To differentiate motions captured from different participants, measurement and assessment in our approach are achieved using two strategies: (1) low level descriptive statistical analysis, and (2) Hidden Markov Model (HMM) classification. Based on our surgical knot tying task experiment, we can conclude that finger motions generated from users with different surgical dexterity, e.g., expert and novice performers, display differences in path length, number of movements and task completion time. In order to validate the discriminatory ability of HMM for classifying different movement patterns, a non-surgical task was included in our analysis. Experimental results demonstrate that our approach had 100 % accuracy in discriminating between expert and novice performances. Our proposed motion analysis technique applied to open surgical procedures is a promising step towards the development of objective computer-assisted assessment and training systems.