Interreader agreement for classifying lesions was moderate to substantial, ranging from 0.534 to 0.638 for kappa values.
A high level of concordance was observed in distinguishing between lesions and masses.
Analysis focused on breast ultrasound results to assess diagnostic confidence among readers.
Findings highlight the need for improved training in differentiating lesions on breast ultrasound.
Abstract
Interreader agreement for classifying lesions as either masses or nonmass lesions at breast US was moderate to substantial (κ = 0.534–0.638), indicating a high level of concordance.