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Research ArticleBrain
Open Access

Assessment of Angiographic Vascularity of Meningiomas with Dynamic Susceptibility Contrast-Enhanced Perfusion-Weighted Imaging and Diffusion Tensor Imaging

C.H. Toh, K.-C. Wei, C.N. Chang, Y.-W. Peng, S.-H. Ng, H.-F. Wong and C.-P. Lin
American Journal of Neuroradiology February 2014, 35 (2) 263-269; DOI: https://doi.org/10.3174/ajnr.A3651
C.H. Toh
aFrom the Departments of Medical Imaging and Intervention (C.H.T, Y.-W.P., S.-H.N, H.-F.W.)
cDepartment of Biomedical Imaging and Radiological Sciences (C.H.T., C.-P.L.)
dBrain Connectivity Laboratory (C.H.T, C.-P.L.), Institute of Neuroscience, National Yang-Ming University, Taipei, Taiwan.
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K.-C. Wei
bNeurosurgery (K.-C.W., C.N.C.), Chang Gung Memorial Hospital, Linkou and Chang Gung University College of Medicine, Tao-Yuan, Taiwan
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C.N. Chang
bNeurosurgery (K.-C.W., C.N.C.), Chang Gung Memorial Hospital, Linkou and Chang Gung University College of Medicine, Tao-Yuan, Taiwan
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Y.-W. Peng
aFrom the Departments of Medical Imaging and Intervention (C.H.T, Y.-W.P., S.-H.N, H.-F.W.)
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S.-H. Ng
aFrom the Departments of Medical Imaging and Intervention (C.H.T, Y.-W.P., S.-H.N, H.-F.W.)
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H.-F. Wong
aFrom the Departments of Medical Imaging and Intervention (C.H.T, Y.-W.P., S.-H.N, H.-F.W.)
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C.-P. Lin
cDepartment of Biomedical Imaging and Radiological Sciences (C.H.T., C.-P.L.)
dBrain Connectivity Laboratory (C.H.T, C.-P.L.), Institute of Neuroscience, National Yang-Ming University, Taipei, Taiwan.
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Abstract

BACKGROUND AND PURPOSE: The roles of DTI and dynamic susceptibility contrast-enhanced–PWI in predicting the angiographic vascularity of meningiomas have not been studied. We aimed to investigate if these 2 techniques could reflect the angiographic vascularity of meningiomas.

MATERIALS AND METHODS: Thirty-two consecutive patients with meningiomas who had preoperative dynamic susceptibility contrast-enhanced–PWI, DTI, and conventional angiography were retrospectively included. The correlations between angiographic vascularity of meningiomas, classified with a 4-point grading scale, and the clinical or imaging variables—age and sex of patient, as well as size, CBV, fractional anisotropy, and ADC of meningiomas—were analyzed. The meningiomas were dichotomized into high-vascularity and low-vascularity groups. The differences in clinical and imaging variables between the 2 groups were compared. Receiver operating characteristic curve analysis was used to determine the diagnostic performance of these variables.

RESULTS: In meningiomas, angiographic vascularity correlated positively with CBV but negatively with fractional anisotropy. High-vascularity meningiomas demonstrated significantly higher CBV but lower fractional anisotropy as compared with low-vascularity meningiomas. In differentiating between the 2 groups, the area under the curve values were 0.991 for CBV and 0.934 for fractional anisotropy on receiver operating characteristic curve analysis.

CONCLUSIONS: CBV and fractional anisotropy correlate well with angiographic vascularity of meningiomas. They may differentiate between low-vascularity and high-vascularity meningiomas.

ABBREVIATIONS:

AUC
area under the curve
FA
fractional anisotropy
ROC
receiver operating characteristic
  • © 2014 by American Journal of Neuroradiology

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American Journal of Neuroradiology: 35 (2)
American Journal of Neuroradiology
Vol. 35, Issue 2
1 Feb 2014
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Assessment of Angiographic Vascularity of Meningiomas with Dynamic Susceptibility Contrast-Enhanced Perfusion-Weighted Imaging and Diffusion Tensor Imaging
C.H. Toh, K.-C. Wei, C.N. Chang, Y.-W. Peng, S.-H. Ng, H.-F. Wong, C.-P. Lin
American Journal of Neuroradiology Feb 2014, 35 (2) 263-269; DOI: 10.3174/ajnr.A3651

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Assessment of Angiographic Vascularity of Meningiomas with Dynamic Susceptibility Contrast-Enhanced Perfusion-Weighted Imaging and Diffusion Tensor Imaging
C.H. Toh, K.-C. Wei, C.N. Chang, Y.-W. Peng, S.-H. Ng, H.-F. Wong, C.-P. Lin
American Journal of Neuroradiology Feb 2014, 35 (2) 263-269; DOI: 10.3174/ajnr.A3651
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