Article Figures & Data
Figures
- Fig 1.
Upper panel shows DSA images of 4 different meningiomas, demonstrating grade 0 (A), 1 (B), 2 (C), and 3 (D) angiographic vascularity, respectively. Arrows indicate locations of meningiomas; lower panel shows the corresponding postcontrast MPRAGE images in coronal view.
- Fig 2.
Upper panel shows DSA (A), contrast-enhanced MPRAGE (B), FA (C), and CBV (D) images of a meningioma with grade 1 angiographic vascularity; lower panel (E–H) shows the corresponding images from a meningioma with grade 3 angiographic vascularity.
- Fig 3.
Scatterplots with regression lines show a correlation (Spearman ρ = 0.891) between CBV and angiographic vascularity (A) and an inverse correlation (Spearman ρ = −0.861) between FA and angiographic vascularity (B). There is no correlation between ADC and angiographic vascularity.
- Fig 4.
Boxplots of CBV (A), FA (B), and ADC (C) according to angiographic vascularity.
- Fig 5.
ROC curve analysis of the diagnostic performance of CBV and FA in differentiating between low-vascularity and high-vascularity meningiomas.
Tables
- Table 1:
Comparison of clinical and imaging data between low-vascularity and high-vascularity meningiomas
Group Low-Vascularity Meningioma High-Vascularity Meningioma P Value 95% CI Sex 6 women, 4 men 9 women, 13 men .450 NA Age, y 49.7 ± 16.7 56.7 ± 14.5 .237 −18.91 to 4.86 Size, cm 5.45 ± 1.69 5.27 ± 1.57 .781 −1.08 to 1.42 CBV 5.06 ± 2.05 13.97 ± 5.67 <.001 −12.71 to −5.10 ADC 1.114 ± 0.107 1.213 ± 0.258 .253 −0.27 to 0.07 FA 0.621 ± 0.106 0.339 ± 0.147 <.001 0.17 to 0.38 Note:—Data are mean ± standard deviation. Units are × 10−3 mm2/s for ADC values.
- Table 2:
ROC analysis of CBV and FA in differentiating meningiomas with high vascularity from those with low vascularity
Parameter AUC 95% CI P Value CV SEN SPE CBV 0.991 0.967–1.015 <.001 8.21 90.9 100 FA 0.934 0.852–1.016 <.001 0.425 100 77 Note:—CV indicates cutoff value; SEN, sensitivity; SPE, specificity. Data of sensitivity, specificity, and accuracy are in percentages.
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