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Improving Search Strategy for Identifying Urgent Conditions on the Chest X-ray

This study is currently recruiting participants. (see Contacts and Locations)
Verified June 2013 by Université de Montréal
Sponsor:
Information provided by (Responsible Party):
Université de Montréal
ClinicalTrials.gov Identifier:
NCT01883570
First received: June 18, 2013
Last updated: June 20, 2013
Last verified: June 2013
  Purpose

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.

Methods:

  • 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.

Expected results:

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


Condition Intervention Phase
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
Phase 3

Study Type: Interventional
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)

Resource links provided by NLM:


Further study details as provided by Université de Montréal:

Primary Outcome Measures:
  • 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)


Estimated Enrollment: 40
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)
Arms Assigned Interventions
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

  Eligibility

Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

  • 3rd year medical students enrolled in medicine or surgery rotations during the planned study period
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT01883570

Locations
Canada, Quebec
Hopital Maisonneuve-Rosemont Recruiting
Montreal, Quebec, Canada, H1T 2M4
Contact: George Rakovich, MD    514-252-3400 ext 4558    george.rakovich@umontreal.ca   
Sponsors and Collaborators
Université de Montréal
  More Information

No publications provided

Responsible Party: Université de Montréal
ClinicalTrials.gov Identifier: NCT01883570     History of Changes
Other Study ID Numbers: CPER-11-120-D(1)
Study First Received: June 18, 2013
Last Updated: June 20, 2013
Health Authority: Canada: ethics review committee (university of Montreal)

Keywords provided by Université de Montréal:
visual search strategy, training, chest x-ray

ClinicalTrials.gov processed this record on September 18, 2014