Table 1.
Standardized vocabulary for ultrasonography of thyroid nodules in modified TI‐RADS
| Nodule vocabulary | Definition |
|---|---|
| Composition | Solid |
| Predominantly solid | |
| Predominantly cystic | |
| Cystic | |
| Echogenicity | Hyperechoic |
| Isoechoic | |
| Hypoechoic | |
| Markedly Hypoechoic | |
| Margins | Well‐defined |
| Ill‐defined | |
| Calcifications | None |
| Macrocalcifications | |
| mixed calcifications | |
| Microcalcifications | |
| Shape | A/T ≥ 1 |
| A/T < 1 | |
| Vascularization (blood flow) | Absent (avascular) |
| Few | |
| Enhanced | |
| Suspicious metastatic lymph node(s) | None |
| One or more |
Abbreviations: A/T ≥ 1, the shape of nodule is taller‐than‐wide; A/T < 1, the shape of nodule is wider‐than‐tall; TI‐RADS, Thyroid Imaging Reporting and Data System.