Table 1:

Diagnostic certainty of diagnosis in the Impression section of a radiology report—categories for annotation

Certainty Categories	Interpretation	Examples
Non-Definitive	Describing differential diagnoses without indicating any confidence or only findings without any diagnosis	“Less likely differential considerations include demyelinating/inflammatory processes”
Definitive-Strong	Describing discrete diagnostic findings without hedging words	“Stable right sphenoid intraosseous lipoma”
Definitive-Mild	Describing discrete diagnostic findings with hedging words	“Findings suggestive of Arnold Chiari I malformation”
Other	Describing recommendations, imaging techniques, prior studies	“Another follow-up is recommended”