No. of patients | Estimated volume (cm3) | Pathologic volume (cm3) | Difference between estimated and pathologic volumes (P) | Correlation | |||
---|---|---|---|---|---|---|---|
Group | Diagnostic tool | R | R2 | ||||
With artifacts | 61 | PET/CT (SUV = 2.5) | 17.0 ± 24.5 | 9.2 ± 15.4 | 0.038 | 0.76 | 0.58 |
PET/CT (SUV = 3.0) | 13.3 ± 21.2 | 0.22 | 0.75 | 0.57 | |||
PET/CT (SUV = 3.5) | 10.8 ± 18.1 | 0.6 | 0.76 | 0.58 | |||
48 | CT | 3.6 ± 6.9 | 10.7 ± 16.2 | 0.0063 | 0.69 | 0.48 | |
23 | MRI | 5.1 ± 8.3 | 12.5 ± 15.5 | 0.049 | 0.63 | 0.39 | |
Without artifacts | 40 | PET/CT (SUV = 2.5) | 13.0 ± 14.3 | 9.6 ± 14.5 | 0.29 | 0.74 | 0.54 |
PET/CT (SUV = 3.0) | 10.3 ± 12.1 | 0.82 | 0.75 | 0.56 | |||
PET/CT (SUV = 3.5) | 9.5 ± 11.6 | 0.97 | 0.67 | 0.45 | |||
27 | CT | 3.6 ± 3.3 | 7.8 ± 8.8 | 0.024 | 0.51 | 0.26 | |
22 | MRI | 6.2 ± 5.5 | 11.2 ± 10.1 | 0.048 | 0.61 | 0.37 |
R = correlation coefficient; R2 = coefficient of determination.