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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 |
