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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.