超声初学者在复习在线超声模块后能否获得图像采集技能？
Can ultrasound novices develop image acquisition skills after reviewing online ultrasound modules?
机构信息
University of Arizona, College of Medicine & Banner University Medical Center - Tucson, Department of Emergency Medicine, PO Box 245057, Tucson, AZ, 85724, USA.
Tucson Medical Center, Department of Emergency Medicine, Tucson, AZ, USA.
出版信息
BMC Med Educ. 2021 Mar 20;21(1):175. doi: 10.1186/s12909-021-02612-z.
BACKGROUND
Point-of-care ultrasound is becoming a ubiquitous diagnostic tool, and there has been increasing interest to teach novice practitioners. One of the challenges is the scarcity of qualified instructors, and with COVID-19, another challenge is the difficulty with social distancing between learners and educators. The purpose of our study was to determine if ultrasound-naïve operators can learn ultrasound techniques and develop the psychomotor skills to acquire ultrasound images after reviewing SonoSim® online modules.
METHODS
This was a prospective study evaluating first-year medical students. Medical students were asked to complete four SonoSim® online modules (aorta/IVC, cardiac, renal, and superficial). They were subsequently asked to perform ultrasound examinations on standardized patients utilizing the learned techniques/skills in the online modules. Emergency Ultrasound-trained physicians evaluated medical students' sonographic skills in image acquisition quality, image acquisition difficulty, and overall performance. Data are presented as means and percentages with standard deviation. All P values are based on 2-tailed tests of significance.
RESULTS
Total of 44 medical students participated in the study. All (100%) students completed the hands-on skills evaluation with a median score of 83.7% (IQR 76.7-88.4%). Thirty-three medical students completed all the online modules and quizzes with median score of 87.5% (IQR 83.8-91.3%). There was a positive association between module quiz performance and the hands-on skills performance (R-squared = 0.45; p < 0.001). There was no statistically significant association between module performance and hands-on performance for any of the four categories individually. In all four categories, the evaluators' observation of the medical students' difficulty obtaining views correlated with hands-on performance scores.
CONCLUSIONS
Our study findings suggest that ultrasound-naïve medical students can develop basic hands-on skills in image acquisition after reviewing online modules.
背景
床旁超声已成为一种无处不在的诊断工具，越来越多的人对教授新手医生使用这一工具感兴趣。其中一个挑战是合格讲师的短缺，而 COVID-19 又带来了学习者与教育者之间保持社交距离的困难。我们的研究目的是确定超声零基础的医生在观看 SonoSim® 在线模块后是否能够学习超声技术并发展获取超声图像的运动技能。
方法
这是一项前瞻性研究，评估了一年级医学生。要求医学生完成 SonoSim® 在线模块（主动脉/IVC、心脏、肾脏和浅表）的学习。然后，他们被要求在标准化患者身上利用在线模块中所学的技术/技能进行超声检查。接受过急诊超声培训的医生评估医学生在图像获取质量、图像获取难度和整体表现方面的超声技能。数据以平均值和标准差表示。所有 P 值均基于双侧检验。
结果
共有 44 名医学生参与了这项研究。所有（100%）学生都完成了实践技能评估，中位数得分为 83.7%（IQR 76.7-88.4%）。33 名医学生完成了所有在线模块和测验，中位数得分为 87.5%（IQR 83.8-91.3%）。模块测验成绩与实践技能成绩呈正相关（R 平方=0.45；p<0.001）。在这四个类别中，模块表现与实践表现之间没有统计学上的显著关联。在所有四个类别中，评估者观察到医学生获取视图的困难程度与实践表现评分相关。
结论
我们的研究结果表明，超声零基础的医学生在观看在线模块后可以发展基本的图像获取实践技能。
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