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| mr-vTRG score | Post-treatment mrEMVI features |
|---|---|
| 1 |
Tumour signal replaced by vessel fibrosis |
| 2 |
50–75% fibrosis of tumour signal |
| 3 |
25–49% fibrosis of tumour signal |
| 4 |
Less than 25% fibrosis of tumour signal |
| 5 | Minimal fibrosis of tumour signal within lumen |
Abbreviation: mrEMVI= magnetic resonance imaging-defined extramural venous invasion.
