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Fig. 2 | BMC Medical Imaging

Fig. 2

From: Dual-energy spectral CT quantitative parameters for the differentiation of Glioma recurrence from treatment-related changes: a preliminary study

Fig. 2

Contrast-enhanced venous phase GSI images show that IC and spectral curve were similar in treatment related necrosis and the normal reference brain parenchyma. a Contrast-enhanced 70-keV monochromatic image (L1: area, 105.34 mm2; mean CT value, 45.01 HU; L2: 105.34 mm2; mean CT value, 46.8 HU). b Iodine-based materialdecomposition image shows that IC in glioma recurrence and the normal reference brain parenchyma were 0.031 mg/cm3 and 0.122 mg/cm3 (L1: area, 105.34 mm2; mean IC, 0.31 · 100 μg/cm3; L2: area, 105.34 mm2; mean IC, 1.22 · 100 μg/cm3). c Graph shows spectral HU curve of glioma recurrence (violet) and the normal reference brain parenchyma yellow), slope of the curve representing glioma recurrence is similar with the normal reference brain parenchyma (0.07 vs. 0.22). d The same time with dual energy gemstone spectral CT scanning MRI T1WI enhanced image showed recurrence treatment related necrosis. e Seven months later, the MRI T1WI enhanced image showed the treatment related necrosis was obviously small with slight enhancement

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