Noninvasive evaluation of glioma grade using perfusion and multivoxel 3d proton mr spectroscopy
Main Article Content
Abstract
SUMMARY
The purpose of this study was to clarify the usefulness of perfusion and multivoxel 3D proton MR spectroscopy in glioma grading. Study included 85 patients underwent preoperative conventional MR Imaging, multivoxel proton MR spectroscopy and histopathologically determined gliomas after stereotactic biopsy or partial resection. Receiver operative characteristic (ROC)
curve analyses were performed to asscess the cutoff of rCBV and metaboite parameters of which the sensitivity and specificity are highest.A cut-off value of 2,56 for rCBV resulted in sensitivity, specificity of 86,54%, 75,76%, respectively. The cut-off value was taken as 2,76 in the Cho/NAA ratio provided sensitivity, specificity of 89,66%; 88%, respectively. The combination of rCBV and Cho/NAA ratio provided sensitivity, specificity of 71,15%; 78,79%, respectively. rCBV and Cho/NAA can increase the
ability of glioma grading preoperatively.
Article Details
Keywords
glioma, perfusion MR, spectroscopy MR
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