TABLE 2:
Characteristics of regional nodal metastases
| Patient (No.) | Stage | Nodal Level | MR Imaging Time Points | Percentage Measurement Error, % |
|---|---|---|---|---|
| 1 | N0 | None | 0* | None |
| 2 | N2c | L II/III | 4 | 14, 13, 11, 11 |
| 3 | N2b | R II | 5 | 2, 1, 3, 9, 31† |
| 4 | N2c | R II/III | 3 | 2, 7, 3 |
| 5 | N2c | R II/III | 3 | 1, 2, 10 |
| 6 | N2b | L II-IV | 4 | 1, 1, 3, 8 |
| 7 | N2c | R II/III | 3 | 14, 26‡, 4 |
| 8 | N2a | R II | 3 | 5, 1, 4 |
| 9 | N2b | R II | 4 | 4, 12, 0, 11 |
| 10 | N2b | R II/III | 2 | 3, 30† |
| 11 | N2a | L II | 3 | 4, 1, 1 |
| 12 | N3 | R II | 3 | 17, 16, 27* |
| 13 | N2b | R II | 3 | 3, 17, 17 |
| 14 | N2c | L II | 4 | 4, 16, 13, 19 |
| 15 | N3 | R I-V | 3 | 3, 7, 20 |
| 16 | N2b | R II | 3 | 4, 9, 37† |
| 17 | N2c | L II/III | 3 | 9, 6, 4 |
*
No nodal metastases.
†
Percentage measurement error was greater than 20% because of small absolute differences in the volume measurements of small lesions.
‡
Percentage measurement error was greater than 20% because of inaccuracies in the volume measurements due to patient motion.