Inter-Reader Agreement of ATA Sonographic Risk in Thyroid Nodules with Bethesda Category III Indeterminate Cytology

Background: Substantial inter-observer variation has been documented in the recognition and description of specific sonographic features as well for ATA risk (ASR). This raises question if stratification proposed by guidelines is reproducible applicable nodules with indeterminate cytology. The aim study was to determine inter-reader agreement (IRR) among radiologists using 2015 ASR thyroid nodules. Methods: Three board certified who were blinded clinical data each other, interpreted ultrasound findings 179 that had Bethesda III classified into high suspicion (HS), intermediate (IS), low (LS), very (VLS). Echogenicity, composition, shape taller than wide, vascularity, type margins, presence calcifications also described. Results: majority consensus revealed 28%, 27%, 39% 5% described high, intermediate, ASR, respectively. near perfect (k 0.82 CI 95% (0.77–0.87)). Nodules paired a higher (HS + IS) lower (LS VLS) categories substantial 0.7) both categories. Conclusion: A readers observed when stratifying cytology ASR.