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The impact of MRI on clinical stage
| Clinical stage | MRI combined clinical stage | Stage comparison N (%) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| IB1 | IB2 | IIA1 | IIA2 | IIB | IIIB | IVA | Same stage | Upstaging | Understaging | |
| IB1 | 545 | 55 | 44 | 7 | 26 | 2 | 2 | 545（80.0） | 136（20.0） | 0 |
| IB2 | 17 | 17 | 3 | 7 | 6 | 0 | 1 | 17(33.3) | 17（33.3） | 17(33.3） |
| IIA1 | 178 | 28 | 41 | 3 | 14 | 1 | 2 | 41（15.4） | 20（7.0） | 206（77.6） |
| IIA2 | 5 | 6 | 0 | 4 | 2 | 0 | 0 | 4（23.5） | 2（11.8） | 11（64.7） |
| Total | - | - | - | - | - | - | - | 607（59.7） | 175（17.2） | 234（23.0） |
Abbreviation: MRI, magnetic resonance imaging.
