Table 4 RECIST, WHO and volume analyses from US and MR images of Gammex/UTHSCSA Mark 2 phantom
From: Preclinical multimodality phantom design for quality assurance of tumor size measurement
Design | Image RECIST and WHO (mean ± SD (% error)) | ||
|---|---|---|---|
US | MRI | ||
RECIST (mm) | 37.00 | 39.09 ± 0.52 (+5.66 ± 1.41%) | 37.15 ± 0.94 (+0.39 ± 2.54%) |
WHO (mm 2 ) | 365.00 | 355.44 ± 4.69 (-0.16 ± 1.32%) | 348.69 ± 9.95 (-2.05 ± 2.79%) |
Design | Image Volume (mean ± SD (% error)) | ||
US | MRI | ||
Volume (mm 3 ) | 4.19 (2 mm sphere) | 4.37 ± 0.40 (+4.40 ± 9.47%) | 3.28 ± 2.79 (-21.81 ± 66.60%) |
33.51 (4 mm sphere) | 35.93 ± 1.89 (+7.29 ± 5.65%) | 37.46 ± 7.24 (+11.86 ± 21.62%) | |
179.59 (7 mm sphere) | 169.38 ± 2.85 (-5.69 ± 1.59%) | 155.43 ± 29.57 (-13.45 ± 16.46%) | |
523.60 (10 mm sphere) | 544.50 ± 10.65 (+3.99 ± 2.03%) | 484.32 ± 25.94 (-7.50 ± 4.95%) | |
1436.76 (14 mm sphere) | 1453.39 ± 9.42 (+1.21 ± 0.66%) | 1381.45 ± 32.07 (-3.80 ± 2.23%) | |
Slope [95% CI] | 1.014 ± 0.009 [0.984 to 1.043] | 0.962 ± 0.011 [0.928 to 0.996] | |
Intercept [95% CI] | -0.152 ± 6.341 [-20.33 to 20.02] | -6.665 ± 7.357 [-30.08 to 16.75] | |
R 2 | 0.9998 | 0.9996 | |
p-value | < 0.0001 | < 0.0001 | |