Fifty-Six Extracted In Vivo and Ex Vivo Features and Patient Characteristics Assigned to Each Delineated Lesion in Feature Vector
| Feature category | Feature name |
| In vivo general (6) | Minimum, maximum, sum, mean, SD, variance |
| In vivo histogram (6) | Mean, energy, variance, entropy, skewness, kurtosis |
| In vivo shape (3) | Compactness, volume, spheric dice coefficient |
| In vivo GLCM (17) | Inverse difference, inverse difference moment, sum average, sum entropy, difference variance, difference entropy, information correlation, auto correlation, cluster shade, cluster prominence, maximum probability, entropy, contrast, dissimilarity, angular second moment, sum-of-squares variance, correlation |
| In vivo GLZSM (11) | Emphasis on small zone, large zone, low-gray-level zone, high-gray-level zone, small low-gray-level zone, small high-gray-level zone, large low-gray-level zone, large high-gray-level zone; gray-level nonuniformity; zone-size nonuniformity; zone-size percentage |
| In vivo NGTDM (5) | Coarseness, contrast, complexity, busyness, texture strength |
| Ex vivo (3) | Histology, WHO 2007 grade, IDH1 R132H mutational status |
| Patient (5) | Age, weight, height, body mass index, Karnofsky score |
GLCM = gray-level cooccurrence matrix, GLZSM = gray-level zone-size matrix, NGTDM = neighborhood gray-tone difference matrix.
Details of listed in vivo features can be found in supplemental materials.