Rater A | Rater B | Rater C | |||
---|---|---|---|---|---|
SPECT | SUVmax (mean ± SD) | SUVmax (mean ± SD) | SUVmax (mean ± SD) | ICC (95% CI) | ICC Level of agreement |
Malignant lesion(s) SUVmax | |||||
Primary lung tumour (T) | 3.58 ± 1.27 | 3.57 ± 1.28 | 3.61 ± 1.25 | 1.00 (0.99–1.00) | Excellent |
Lymph node metastasis (LN) | 3.23 ± 1.50 | 3.19 ± 1.53 | 3.33 ± 1.49 | 0.97 (0.95–0.98) | Excellent |
Thoracic metastasis | 2.72 ± 1.62 | 2.79 ± 1.24 | 2.64 ± 1.05 | 0.94 (0.83–0.99) | Good to excellent |
Distant metastasis | 4.30 ± 2.05 | 4.25 ± 2.00 | 4.49 ± 2.21 | 0.91 (0.83–0.96) | Good to excellent |
Reference tissues | |||||
Blood pool (BP) | 1.43 ± 0.50 | 1.46 ± 0.48 | 1.39 ± 0.43 | 0.87 (0.76–0.94) | Good to excellent |
Lung (freehand) | 1.72 ± 0.58 | 1.69 ± 0.57 | 1.37 ± 0.49 | 0.93 (0.86–0.96) | Good to excellent |
Lung (volume AA) | 1.38 ± 0.53 | 1.38 ± 0.50 | 1.35 ± 0.59 | 0.88 (0.78–0.94) | Good to excellent |
Lung (volume C) | 1.39 ± 0.49 | 1.34 ± 0.55 | 1.42 ± 0.51 | 0.94 (0.88–0.97) | Good to excellent |
Liver (freehand) | 6.26 ± 1.34 | 6.56 ± 1.33 | 6.27 ± 1.24 | 0.93 (0.87–0.97) | Good to excellent |
Liver (volume GOJ) | 5.28 ± 1.03 | 5.25 ± 1.21 | 5.27 ± 1.01 | 0.90 (0.81–0.95) | Good to excellent |
Spleen (freehand) | 20.11 ± 4.18 | 20.47 ± 3.97 | 20.68 ± 3.71 | 0.90 (0.82–0.95) | Good to excellent |
Spleen (volume) | 18.89 ± 3.45 | 19.1 ± 3.62 | 19.18 ± 3.67 | 0.94 (0.88–0.97) | Good to excellent |
Bone marrow (freehand) | 3.35 ± 0.80 | 3.52 ± 0.82 | 3.44 ± 0.86 | 0.90 (0.82–0.95) | Good to excellent |
Bone marrow (volume) | 3.36 ± 0.79 | 3.50 ± 0.83 | 3.36 ± 0.86 | 0.93 (0.87–0.97) | Good to excellent |
SUVmax ratio (mean ± SD) | SUVmax ratio (mean ± SD) | SUVmax ratio (mean ± SD) | ICC (95% CI) | ICC Level of agreement | |
---|---|---|---|---|---|
Ratios | |||||
T:BP | 2.60 ± 0.82 | 2.56 ± 0.87 | 2.68 ± 0.78 | 0.85 (0.73–0.93) | Moderate to excellent |
T:L (freehand) | 2.23 ± 0.92 | 2.27 ± 0.91 | 2.87 ± 1.16 | 0.91 (0.83–0.96) | Good to excellent |
T:L (AA) | 2.89 ± 1.24 | 2.83 ± 1.14 | 3.04 ± 1.42 | 0.88 (0.79–0.94) | Good to excellent |
T:L (C) | 2.80 ± 1.10 | 2.99 ± 1.28 | 2.83 ± 1.36 | 0.89 (0.80–0.95) | Good to excellent |
LN:BP | 2.57 ± 1.43 | 2.37 ± 1.28 | 2.52 ± 1.15 | 0.90 (0.85–0.94) | Good to excellent |
Thoracic Met:BP | 2.17 ± 1.11 | 2.27 ± 1.25 | 2.17 ± 0.90 | 0.94 (0.81–0.98) | Good to excellent |
Distant Met:BP | 2.80 ± 1.62 | 2.94 ± 1.75 | 3.13 ± 1.81 | 0.88 (0.77–0.94) | Good to excellent |
Spleen:Liver | 3.33 ± 0.99 | 3.21 ± 0.74 | 3.37 ± 0.69 | 0.78 (0.63–0.89) | Moderate to good |
Bone marrow:Liver | 0.55 ± 0.14 | 0.55 ± 0.13 | 0.56 ± 0.13 | 0.86 (0.75–0.93) | Good to excellent |