Pioneering Precision in Magnetic Resonance Imaging Training: The Introduction of the MRI Interpretation Competency Scale

Abstract

Despite the central role of magnetic resonance imaging (MRI) in clinical diagnosis and medical education, there is a notable absence of standardized, validated tools specifically designed to assess MRI interpretation competencies. Existing assessment methods often evaluate general diagnostic reasoning but fail to address the unique cognitive demands of MRI interpretation, such as spatial orientation, recognition of sectional anatomy, and differentiation of normal and pathological structures. In response to these challenges, this study aimed to develop the MRI Interpretation Competency Scale (MRI-ICS), a tool specifically targeting the skills required for accurate MRI interpretation. A sequential exploratory mixed methods approach was employed. Semi-structured interviews with experienced MRI interpreter students (selected via snowball sampling) informed item development. Exploratory factor analysis (EFA) was conducted to establish construct validity, supported by the Kaiser–Meyer–Olkin measure (KMO) and Bartlett's Test of Sphericity (BTS). Reliability was assessed using Cronbach's alpha (α). The MRI-ICS identified three factors: (1) ability to discern structures in MRI images (eight items, explained variance 27.46%, Cronbach's α = 0.89); (2) necessity for professional development (seven items, explained variance 20.25%, Cronbach's α = 0.80); and (3) utilization in the diagnostic process (six items, explained variance 14.01%, Cronbach's α = 0.84). The total explained variance was 61.72%, with an overall Cronbach's α of 0.89. The MRI-ICS offers a reliable, validated framework to enhance MRI interpretation training globally, filling a critical gap in medical education assessment.