Online Perceptual Modules and Spaced Learning, a Modern Approach to Teaching Left Ventricular Systolic Assessment to Medical Students.
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 24
- 试验地点
- 1
- 主要终点
- Impact of the spaced online 4 short PLMs on the ability to correctly visually estimate LVEF during a remote post-test (1 month).
研究概览
简要总结
This study is designed to:
- Create 4 short PLMs aimed at improving visual estimation of LVEF on TTE images.
- Design a study to determine if these online PLMs can be used to increase the ability of medical students to estimate LVEF on TTE images and create long term retention of this skill.
The hypothesis of the study is that several short PLM sessions over a period of approximately 1 month will improve the ability of third- and fourth-year novice medical students in echocardiography to visually estimate LVEF using TTE images.
详细描述
Echocardiography is increasingly used in the field of acute care for the diagnosis and monitoring of patients. However, echocardiography is a difficult tool to master and the recommendations for training in echocardiography require several tests to be performed and interpreted. In a context of growing training needs, this long process of supervised learning, even if it has been proven, presents difficulties, particularly the limited access to patients and experts.
Perceptual learning modules (PLMs) represent an alternative modality to teach image interpretation, and are already used in other fields where expertise is largely based on the ability to recognize patterns. Placed on digital platforms, PLMs offer a series of images and the learner must answer a question within a short time. Each response is followed by immediate feedback (the correct answer). Thus, the learner can learn to quickly extract the useful information, in this case, the left ventricle ejection fraction (LVEF) by viewing a large number of exams in a short period of time, and by receiving quality feedback every time.
Methods:
Perceptual learning modules (PLMs)
- PLMs will be assembled on the online platform using the image bank.
- Their objective is to improve visual estimation of LVEF.
- 96 TTE exams from the image bank will be used to build 4 distinct PLM modules of 24 images each.
- The answer key (LVEF) for each image set in the PLMs and performance tests will be created by an echocardiography trained cardiologist using visual assessment of LVEF and 3D measurements of LVEF.
- For every exam within a PLM, the 3 standard echocardiographic views (apical 4-chamber, apical 2-chamber, and apical long axis views) will be shown simultaneously and playing in a continuous loop for a maximum of 20 seconds.
- The online platform will allow the participants to enter their visual estimation of the LVEF (an integer between 0 and 100%).
- If no answer is entered after 20 seconds, the images will disappear, and the platform will force the participants to enter an answer before providing feedback
- Feedback will be displayed following each participant answer for a maximum of 10-seconds. During the feedback phase, the same three views will be shown, but they will be accompanied by the participants' answer and by the validated LVEF. Since LVEF by 3D assessment is the most accurate, it will be used as the validated answer for the PLMs.
- Each module will be composed of
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Other
- 盲法
- None
入排标准
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Third- or fourth-year medical students
- •Access to a computer with high speed internet (no smartphone or tablet since the images would be too small)
排除标准
- •Previous formal echocardiographic training (transthoracic, transesophageal or FOCUS echocardiography)
研究组 & 干预措施
PLM group 1
Participants will do a pretest (Test 1), the 4 short PLMs, an immediate post-test (Test 2) and a remote post-test (Test 1).
干预措施: 4 short PLMs group 1 (Other)
PLM group 2
Participants will do a pretest (Test 2), the 4 short PLMs, an immediate post-test (Test 1) and a remote post-test (Test 2).
干预措施: 4 short PLMs group 2 (Other)
结局指标
主要结局
Impact of the spaced online 4 short PLMs on the ability to correctly visually estimate LVEF during a remote post-test (1 month).
时间窗: Change between baseline (pre-test) and remote post-test (1 month)
The mean absolute deviation of the participants' visual estimations from the validated answer (expert estimate) will be used as a measure of the precision of the estimations.
次要结局
- Impact of the online perceptual modules on the ability to correctly estimate LVEF during an immediate post-test (module validation).(Change between baseline (pre-test) and immediately after the fourth PLM online session.)
- The progression (improvement of performance) of the participants' ability to correctly assess LVEF throughout the completion of the 4 modules.(At the end of the fourth online session, on an average of 15 to up to 30 days.)
- The fluency (time to answer) of each participant as they progress through the study protocol.(At baseline (pretest), immediately after the fourth PLM online session and on remote post-test (1 month).)