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The Visualization of Uncertainty in Clinical Diagnostic Reasoning for Pulmonary Embolism

U

University of Calgary

Status

Completed

Conditions

Visualization of Uncertainty
Pulmonary Embolism
Evidence Based Medicine
Diagnostic Uncertainty
Clinical Reasoning

Treatments

Other: Visualized pulmonary embolism computer task model
Other: Didactic review lecture

Study type

Interventional

Funder types

Other

Identifiers

Details and patient eligibility

About

Medical reasoning is a form of inquiry that examines the thought processes involved in making medical decisions. When physicians are faced with patients' symptoms or signs, their thought processes follow either direct shortcuts to suspect a diagnosis or go into a deeper and more analytic process to reach a diagnosis. The second pathway is less prone to biases and errors. This study explores whether the use of an interactive visual display of probabilities of pulmonary embolism generated from positive or negative test results will increase the adherence to evidence based guidelines in the diagnosis of pulmonary embolism.

Enrollment

30 patients

Sex

All

Ages

24 to 65 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

  • Medical students, University of Calgary, in clerkship who finished at least 4 weeks of a block of medicine rotation at any hospital site.
  • First year subspecialty or Internal Medicine residents.
  • Practicing physicians in the subspecialties of Internal Medicine or Emergency Medicine.

Exclusion criteria

  • Physicians in the subspecialty of Haematology or Respiratory

Trial design

30 participants in 2 patient groups

Visualized pulmonary embolism computer task model
Experimental group
Description:
This group of participants was presented and trained to use a visual representation of diagnostic pathway for pulmonary embolism. The design of this visual representation is based on Bayes theorem and cognition enhancing visual design principles.
Treatment:
Other: Visualized pulmonary embolism computer task model
Didactic review pulmonary embolism lecture
Active Comparator group
Description:
This group of participants was presented with a didactic lecture covering the diagnostic approach of pulmonary embolism.
Treatment:
Other: Didactic review lecture

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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