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Figures
- Fig 1.
Box-and-whisker plots showing the distributions of T1WI signal intensities and skewness of COLLAGE entropy values for pure and different grades of CRN for primary and metastatic cases, respectively. A and B, The signal intensities in primary and metastatic cases, respectively. C and D, The COLLAGE skewness values for the same cases. C, The green star and circle represent the cases from site 2 with 75% CRN and 30% CRN, respectively. D, The green star represents the case from site 2 with 50% CRN. P values for the pairs of groups exhibiting statistically significant difference are also shown.
- Fig 2.
Gd-C T1WI for CRN from nasopharyngeal carcinoma (A), predominant (>80%) CRN (B), predominant recurrent tumor (<20% CRN) (C), and glioblastoma (0% CRN) (D), and the corresponding COLLAGE entropy maps of the ROIs (E–H).
Tables
Patient cohorts with corresponding diagnosis as identified by an expert neuropathologist on postsurgical specimens
Site No., Initial Diagnosis Category Percentage CRN/Tumor as Identified by Expert No. of Cases Site 1 Primary tumors Predominant tumor <20% CRN, >80% tumor 12 Predominant CRN >80% CRN, <20% tumor 10 Metastatic tumors Predominant tumor <20% CRN, >80% tumor 12 Predominant CRN >80% CRN, <20% tumor 8 Site 2 Primary tumors Predominant tumor <20% CRN, >80% tumor 4 Predominant CRN >80% CRN, <20% tumor 1 Mixed 30% CRN, >70% tumor 2 Metastatic tumors Predominant tumor <20% CRN, >80% tumor 1 Predominant CRN >80% CRN, <20% tumor 1 Mixed 50% CRN, 50% tumor 1 (50%) Site 3 NPC Pure 100% CRN 13 TCIA Glioblastoma Pure 100% Tumor 10 Note:—NPC indicates nasopharyngeal carcinoma.
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