The effect of video playback speed on surgeon technical skill perception.
The effect of video playback speed on surgeon technical skill perception.
复制标题
DOI：
10.1007/s11548-020-02134-x
复制
发表时间：
2020-05
影响因子：
3
通讯作者：
Kowalewski TM
中科院分区：
文献类型：
--
作者：
Kelly JD;Petersen A;Lendvay TS;Kowalewski TM
寻找有效的方法来区分外科医生的技术技能已被证明是一个复杂的问题来解决计算。以前的研究表明，获得非专家人群对手术性能的评估与黄金标准一样准确，专家外科医生评论。本研究的目的是了解是否众包的评价者给予更高的评价的技术技能的视频的性能与提高播放速度，其效果在区分技能水平，以及这种增加是否与评价者有意识地意识到，视频被手动操纵。一组10个钉转移视频（5个新手，5个专家），用于评估在每个视频播放速度（0.4x-3.6x）的表演者的感知技术技能。用于测量技术技能的客观指标也计算比较，通过操纵相应的运动学数据的每一个性能。使用专家和新手执行栓钉转移任务的干实验室腹腔镜试验的两个视频来获得在每个回放速度（0.2x-3.0x）下对视频是否以实时回放速度播放的感知的评价。我们发现，虽然新手和专家都增加了知觉的技术技能，随着视频播放的增加，增加的数量显着更大的专家。对于专家视频，播放速度每增加0.4倍，GOALS评分平均增加0.72分（95% CI：0.60-0.84分增加; p < 0.001），而对于新手视频，GOALS评分仅增加0.24分（95% CI：0.13-0.36分增加; p < 0.001）。由于专家的回放速度增加导致感知技术技能的差异增加，因此通过手动增加视频回放速度可以更容易地辨别外科手术执行的新手和专家技能水平之间的差异。
Finding effective methods of discriminating surgeon technical skill has proven a complex problem to solve computationally. Previous research has shown that obtaining non-expert crowd evaluations of surgical performances is as accurate as the gold standard, expert surgeon review. The aim of this research is to learn whether crowd-sourced evaluators give higher ratings of technical skill to video of performances with increased playback speed, its effect in discriminating skill levels, and whether this increase is related to the evaluator consciously being aware that the video is being manually manipulated. A set of ten peg transfer videos (5 novices, 5 experts), were used to evaluate the perceived technical skill of the performers at each video playback speed used (0.4x–3.6x). Objective metrics used for measuring technical skill were also computed for comparison by manipulating the corresponding kinematic data of each performance. Two videos of an expert and novice performing dry lab laparoscopic trials of peg transfer tasks were used to obtain evaluations at each playback speed (0.2x–3.0x) of perception of whether a video is played at real-time playback speed or not. We found that while both novices and experts had increased perceived technical skill as the video playback was increased, the amount of increase was significantly greater for experts. Each increase in the playback speed by 0.4x was associated with, on average, a 0.72-point increase in the GOALS score (95% CI: 0.60–0.84 point increase; p < 0.001) for expert videos and only a 0.24-point increase in the GOALS score (95% CI: 0.13–0.36 point increase; p < 0.001) for novice videos. Due to the differential increase in perceived technical skill due to increased playback speed for experts, the difference between novice and expert skill levels of surgical performances may be more easily discerned by manually increasing the video playback speed.
登录
查看更多内容
影响因子：
4.6
作者：
Veto P;Einhäuser W;Troje NF
通讯作者：
Troje NF
影响因子：
2.7
作者：
Hung, Andrew J.;Chen, Jian;Liu, Yan
通讯作者：
Liu, Yan
DOI：
10.3758/bf03208295
发表时间：
1978-01-01
期刊：
PERCEPTION & PSYCHOPHYSICS
影响因子：
--
作者：
BARCLAY, CD;CUTTING, JE;KOZLOWSKI, LT
通讯作者：
KOZLOWSKI, LT
DOI：
10.1037/0096-1523.30.5.822
发表时间：
2004-10-01
影响因子：
2.1
作者：
Jacobs, A;Pinto, J;Shiffrar, M
通讯作者：
Shiffrar, M
影响因子：
3.8
作者：
Peters, JH;Fried, GM;Hoffman, K
通讯作者：
Hoffman, K