Goal: Understand how failed heuristics contribute to cognitive biases and diagnostic errors (for now we are only going to focus on how cognitive bias occurs, not interventions)
Objectives
Explain how radiologists use heuristics to make decisions
Describe the differences between type1 thinking (fast) and type 2 thinking (slow)
Discuss how type 1 thinking can contribute to diagnostic errors
Which of the following is a type of cognitive bias?
Edge of the film error
Alliterative error
Communication error
Perceptual error
Type 1 thinking can be described as:
Rule-based
Deductive
Analytical
Reflexive
Anchoring bias:
Reflects the undue influence that an initial interpretation has on the evaluation of subsequently collected information
Results from a tendency to be influenced by how a question is asked or how a problem is presented
Refers to the tendency for diagnostic assessments to be unduly influenced by easily recalled experiences
Represents the influence that one radiologist’s judgment can exert on the diagnostic thinking of another radiologist
Which of the following theories helps us understand why cognitive errors occur?
Cognitive miser theory
Dual process theory
Analytical processing theory
Cognitive error theory
A 71 year old man with hematuria has an enhanced CT scan (see images below), which demonstrates a calcified mesenteric mass with desmoplastic reaction and a hypoenhancing liver lesion. What is the most likely diagnosis?
