Evaluation of bulk-density-assigned CT images derived from MRI of intracranial regions for radiation treatment
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<b>Fig 1. </b><b>Schematic illustration of the procedures.</b><b>Fig 2. Acquired MR and CT image sets and generated synthetic CT image sets. </b>(a) T1-weighted MR image. (b) T2-weighted MR image. (c) PETRA MR image. (d) original CT image. (e) Water-equivalent synthetic CT (<sub>W</sub>CT). (f) Bulk-density-assigned CT image (<sub>B</sub>CT).<b> </b><b>Fig 3.</b> <b>Gamma analysis between the original CT image and resultant synthetic CT images.</b> (a) original CT image. (b) Water-equivalent synthetic CT (<sub>W</sub>CT). (c) Bulk-density-assigned CT image (<sub>B</sub>CT). (d) Gamma analysis between the original CT and <sub>W</sub>CT with 3 mm/3% criteria. (e) Gamma analysis between the original CT and <sub>W</sub>CT with 2 mm/2% criteria. (f) Gamma analysis between the original CT and <sub>W</sub>CT with 1 mm/1% criteria. (g) Gamma analysis between the original CT and <sub>B</sub>CT with 3 mm/3% criteria. (h) Gamma analysis between the original CT and <sub>B</sub>CT with 2 mm/2% criteria. (i) Gamma analysis between the original CT and <sub>B</sub>CT with 1 mm/1% criteria.<br>Raw evaluated-data sets for statistical analysis in this study.
