Table 1 TIRADS classification features of thyroid ultrasound
Feature category | US features | ||||
|---|---|---|---|---|---|
Composition | Solid | Cystic | Mixed | ||
Margin | Ill-defined | Microlobulated | |||
Shape | Irregular | ||||
Calcification | Micro-calcification | Macro-calcification | No-calcification | ||
Taller than wide | <= 1 (wider than tall) | > 1 (taller than wide) | |||
Blood flow | Central | Peripheral | Messy | Focal thyroid inferno | No |