TABLE 3

Reproducibility Results for All Image-Derived Parameters, Including SUVs and Textural Features (Calculated Using Downsampling Range of 64 Values)

TextureFeatureMean ± SD95% CILRL95% CI for LRLURL95% CI for URL
GlobalMinimum SUV6.3 ± 26.5−7.8 to 20.4−45.6−70.2 to −20.958.233.6 to 82.8
SUVmax4.7 ± 19.5−5.7 to 15.0−33.5−51.7 to −15.442.924.7 to 61.0
SUVmean5.5 ± 21.2−5.8 to 16.8−36.1−55.8 to 16.447.127.3 to 66.8
SD1.2 ± 23.2−11.1 to 13.6−44.18−65.7 to −22.646.625.1 to 68.2
Skewness−0.3 ± 27.5−15.0 to 14.3−54.2−79.8 to −28.653.628.0 to 79.2
Kurtosis2.1 ± 18.0−7.4 to 11.7−33.1−49.8 to −16.437.320.6 to 54.0
Mean/SD4.1 ± 24.1−8.8 to 16.9−43.2−65.6 to −20.751.328.9 to 73.7
LocalSecond angular moment10.9 ± 26.4−3.2 to 25.0−40.9−65.5 to −16.362.738.1 to 87.3
Contrast (inertia)5.4 ± 24.0−18.1 to 7.4−52.3−74.6 to −30.041.619.3 to 63.9
Entropy−2.0 ± 5.4−4.9 to 0.9−12.6−17.7 to −7.68.73.6 to 13.8
Correlation−0.6 ± 27.7−15.3 to 14.1−54.8−15.3 to 14.153.627.9 to 79.3
Homogeneity1.8 ± 11.5−4.4 to 7.9−20.8−31.5 to −10.124.413.6 to 35.1
Dissimilarity−2.1 ± 13.0−9.0 to 4.9−27.6−39.7 to −15.523.511.4 to 35.6
RegionalSmall-area emphasis−6.0 ± 54.3−35.0 to 22.9−112.5−163.0 to −62.0100.449.9 to 150.9
Large-area emphasis3.6 ± 30.0−12.4 to 19.6−55.2−83.1 to −27.362.434.5 to 90.3
Intensity variability−9.7 ± 24.0−22.5 to 3.1−56.7−79.0 to −34.437.315.0 to 59.6
Size–zone variability11.2 ± 23.1−1.1 to 23.5−34.1−55.6 to −12.656.535.0 to 78.0
Zone percentage−2.7 ± 16.9−11.7 to 6.2−35.8−51.5 to −20.130.314.6 to 46.0
Low-intensity emphasis−4.0 ± 55.3−33.5 to 25.4−112.4−163.9 to −61.0104.4525.9 to 155.8
High-intensity emphasis3.9 ± 20.4−7.0 to 14.8−36.1−55.1 to −17.144.024.9 to 63.0
Low-intensity small-area emphasis−7.0 ± 67.6−43.1 to 29.0−139.5−202.4 to −76.6125.462.5 to 188.3
High-intensity small-area emphasis1.0 ± 31.2−15.6 to 17.6−60.1−89.1 to −31.162.033.0 to 91.0
Low-intensity large-area emphasis1.8 ± 28.9−13.6 to 17.2−54.9−81.8 to 28.058.531.6 to 85.4
High-intensity large-area emphasis3.5 ± 35.8−15.6 to 22.6−66.7−100.1 to −33.473.740.4 to 107.1
  • LRL and URL = lower and upper reproducibility limits, respectively.