Article Figures & Data
Figures
- Fig 1.
A 25-year-old woman with an oligodendroglioma (World Health Organization grade II). A, Axial T2-weighted MR imaging demonstrates a right frontal and temporal lobe lesion with mass effect, a small amount of edema, and signal-intensity heterogeneity. B, Contrast-enhanced T1-weighted imaging demonstrates mild enhancement. C, The VSI map shows homogeneous low VSI values and is represented in blue-green. D, CBV map demonstrates clearly elevated perfusion in the tumor parenchyma.
- Fig 2.
A 42-year-old woman with glioblastoma (World Health Organization grade IV). A, Axial T2-weighted MR imaging reveals a left temporal and occipital lobe lesion with mass effect, a moderate amount of edema, and homogeneous signal intensity. B, Contrast-enhanced T1-weighted imaging reveals marked enhancement. C, VSI map shows high VSI values. D, CBV map reveals the elevated perfusion more extensively. The highest perfusion region of CBV does not match entirely that of VSI.
- Fig 3.
VSI and rCBV values in predicting the grade of gliomas. A, The VSImean values show no overlap between HGG and LGG and provide 100% accuracy in predicting the glioma grade. B, The glioma grade could not be exactly identified on the basis of the cutoff values of rCBV. Black indicates the cases correctly identified, and red denotes the cases incorrectly identified.
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