Improving Search Strategy for Identifying Urgent Conditions on the Chest X-ray
Currently, teaching X-ray interpretation to medical students is not standardized, and is generally not very effective.
Objective: The goal of our study is to evaluate whether directly teaching an expert search strategy for x-ray interpretation to 3d year medical students is effective.
- An expert's visual search strategy was recorded using a gaze-tracking device. The search strategy was then reproduced using a dynamic cursor moving across the corresponding chest x-ray, and incorporated into a teaching program accessible via the internet.
- Participants are 3rd year medical students who will be randomized into two groups. The experimental group will have access to the teaching program as described. The control group will have access to the same x-rays but not the expert's search strategy.
- At the end of the study period the investigators will collect performance data (the participants' accuracy at reading a series of chest x-rays) and process data (using gaze-tracking to evaluate the participants' search strategies); the experimental and control groups will be compared.
The investigators expect the group trained in expert search strategy to show improved accuracy at reading chest x-rays, and an improvement in their visual search strategy
Using Expert Visual Search Strategy to Train Students to Read the Chest X-ray
Other: training in visual search strategy
Other: access to a library of chest x-rays without search strategy
|Study Design:||Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Parallel Assignment
Masking: Single Blind (Investigator)
|Official Title:||Improving Search Strategy for Identifying Urgent Conditions on the Chest X-ray. (Original Title in French: Améliorer la stratégie de Recherche et l'Identification Des Conditions Urgentes Sur Une Radiographie Pulmonaire: Impact de l'Utilisation d'un Logiciel Interactif de Lecture systématique)|
- Improvement in medical student's visual search strategy at reading a chest x-ray [ Time Frame: 2 months ] [ Designated as safety issue: No ]participants enrolled in the experimental group will be trained to learn the expert's search strategy for reading a chest x-ray. We hypothesize that by the end of the study period they will show an improved visual search strategy over students who were not trained in visual search but were taught through standard methods (interaction with clinician-educators during their clerkship rotations)
|Study Start Date:||June 2013|
|Estimated Study Completion Date:||August 2013|
|Estimated Primary Completion Date:||July 2013 (Final data collection date for primary outcome measure)|
Experimental: trained visual search strategy
An expert's visual search strategy for reading the chest x-ray was recorded using a gaze tracking device. This strategy was reproduced using a dynamic cursor and will be made available to participants in the experimental group using an interactive website.
|Other: training in visual search strategy|
Active Comparator: not trained in visual search strategy
Participants will learn to read chest x-rays by having access to a library of chest x-rays identical to the one used by the experimental arm, but without the search strategy.
|Other: access to a library of chest x-rays without search strategy|
Please refer to this study by its ClinicalTrials.gov identifier: NCT01883570
|Montreal, Quebec, Canada, H1T 2M4|
|Contact: George Rakovich, MD 514-252-3400 ext 4558 firstname.lastname@example.org|