Table 2.
Variations of radiomics features over different MRI scanning settings for T1-weighted images without normalization and smoothing.
| Feature category | COV < 10% | 10% ≤ COV < 30% | COV ≥ 30% |
|---|---|---|---|
| Gradient orient histogram(7) | InterQuartileRange | 90PercentileArea | |
| Kurtosis | |||
| MeanAbsoluteDeviation | |||
| MedianAbsoluteDeviation | |||
| 20Percentile | |||
| 50PercentileArea | |||
| Gray level cooccurence (22) | InverseDiffMomentNorm | AutoCorrelation | ClusterProminence |
| DifferenceEntropy | Contrast, Correlation | ClusterShade | |
| Homogeneity | Dissimilarity | ClusterTendendcy | |
| InformationMeasureCorr2 | Energy, Entropy | SumVariance | |
| Homogeneity2 | InformationMeasureCorr1 | Variance | |
| InverseDiffNorm | MaxProbability | ||
| InverseVariance | SumAverage | ||
| SumEntropy | |||
| Gray level run length (11) | GrayLevelNonuniformity | HighGrayLevelRunEmpha | LongRunHighGrayLevelEmpha |
| ShortRunEmphasis | LongRunEmphasis | LongRunLowGrayLevelEmpha | |
| RunLengthNonuniformity | LowGrayLevelRunEmpha | ||
| RunPercentage | ShortRunHighGrayLevelEmpha | ||
| ShortRunLowGrayLevelEmpha | |||
| Intensity (31) | GlobalEntropy | GlobalMean | Energy |
| LocalEntropyMean | GlobalMedian, GlobalStd | EnergyNorm | |
| LocalEntropyMax | GlobalUniformity | LocalEntropyMin | |
| InterQuartileRange | Skewness | ||
| Kurtosis, LocalEntropyStd | Variance | ||
| LocalEntropyMedian | |||
| LocalRangeMean | |||
| LocalRangeMin | |||
| LocalRangeStd | |||
| LocalStdMax, LocalStdMean | |||
| LocalStdMedian, LocalStdMin | |||
| LocalStdStd | |||
| MeanAbsoluteDeviation | |||
| MedianAbsoluteDeviation | |||
| 20Percentile, 50Percentile | |||
| 90Percentile | |||
| RootMeanSquare | |||
| LocalRangeMedian | |||
| Neighborhood gray-tone difference (NGTD) (5) | Coarseness | Busyness | |
| Complexity | |||
| Contrast | |||
| TextureStrength | |||
| Average COV | 6.05% | 18.52% | 45.49% |