Table 3 TNM Staging on planar, SPECT, and SPECT/CT

Stage ≤ IIIA^a

69 (72.6%)

77 (81.1%)

73 (76.8%)

Stage IIIB/C

4 (4.2%)

0

0

Stage IVA

6 (6.3%)

5 (5.3%)

5 (5.3%)

Stage IVB

16 (16.8%)

13 (13.7%)

17 (17.9%)

Incorrectly staged^b

N/A^b

11 (11.6%)

10 (10.5%)

Downstaged:

N/A^b

10 (10.5%)

7 (7.4%)

IIIB/C → ≤ IIIA

4

4

IVA → ≤ IIIA

2

1

IVB → ≤ IIIA

3

1

IVB → IVA

1

1

Upstaged:

N/A

1 (1.1%)

3 (3.2%)

≤IIIA → IVB

1

2

IVA → IVB

0

1