Table 2 Correlation of quantitative values between planar and SPECT/CT images
Region of knee | Uptake value in planar image | SUVmean | Correlation coefficient r (95% CI) between uptake value in planar image and SUVmean | Correlation p value between uptake value in planar image and SUVmean | SUVmax | Correlation coefficient r (95% CI) between uptake value in planar image and SUVmax | Correlation p value between uptake value in planar image and SUVmax |
|---|---|---|---|---|---|---|---|
Left lateral femur | 7.68 ± 3.28 | 2.03 ± 1.01 | 0.66 (0.53–0.76) | < 0.0001 | 6.17 ± 4.42 | 0.61 (0.47–0.71) | < 0.0001 |
Left lateral tibia | 7.07 ± 3.06 | 2.14 ± 1.16 | 0.69 (0.57–0.78) | < 0.0001 | 5.54 ± 4.04 | 0.71 (0.60–0.79) | < 0.0001 |
Left medial femur | 8.18 ± 4.29 | 2.45 ± 1.51 | 0.59 (0.45–0.70) | < 0.0001 | 7.90 ± 6.89 | 0.67 (0.54–0.76) | < 0.0001 |
Left medial tibia | 8.10 ± 4.61 | 2.49 ± 1.82 | 0.63 (0.49–0.73) | < 0.0001 | 7.50 ± 7.15 | 0.78 (0.69–0.85) | < 0.0001 |
Left patella | 12.17 ± 5.32 | 2.42 ± 1.24 | 0.57 (0.42–0.69) | < 0.0001 | 6.19 ± 3.37 | 0.53 (0.38–0.65) | < 0.0001 |
Right lateral femur | 7.45 ± 2.90 | 2.01 ± 0.83 | 0.63 (0.50–0.74) | < 0.0001 | 6.36 ± 4.51 | 0.68 (0.56–0.77) | < 0.0001 |
Right lateral tibia | 6.63 ± 2.07 | 2.05 ± 0.84 | 0.45 (0.38–0.59) | < 0.0001 | 5.39 ± 3.38 | 0.31 (0.13–0.48) | < 0.0001 |
Right medial femur | 8.34 ± 4.01 | 2.35 ± 1.35 | 0.60 (0.46–0.71) | < 0.0001 | 8.37 ± 8.10 | 0.69 (0.57–0.78) | < 0.0001 |
Right medial tibia | 7.76 ± 3.84 | 2.41 ± 1.61 | 0.66 (0.54–0.75) | < 0.0001 | 7.81 ± 8.08 | 0.66 (0.54–0.76) | < 0.0001 |
Right patella | 11.80 ± 4.56 | 2.51 ± 1.42 | 0.63 (0.50–0.73) | < 0.0001 | 6.60 ± 3.97 | 0.53 (0.38–0.66) | < 0.0001 |
Total | 8.52 ± 4.28 | 2.29 ± 1.32 | 0.58 (0.54–0.62) | < 0.0001 | 6.78 ± 5.75 | 0.55 (0.50–0.59) | < 0.0001 |