Dynamic Contrast-Enhanced Perfusion MR Imaging Measurements of Endothelial Permeability: Differentiation between Atypical and Typical Meningiomas

查看全文 作　　者：Law [1,2,3,4]M;Zagzag [1,2,3,4]D;Golfinos [1,2,3,4]JG;Knopp [1,2,3,4]EA;Johnson [1,2,3,4]G 机构地区：[1]Department of Radiology/Division of Neuroradiology, New York University Medical Center, NY.;[2]Department of Pathology/Division of Neuropathology, New York University Medical Center, NY.;[3]Department of Neurosurgery, New York University Medical Center, NY.;[4]Department of Radiology, University of California-San Francisco Medical Center 出　　处：《中国神经肿瘤杂志》索引2003年第1卷第3期,共1页 摘　　要：BACKGROUND: AND PURPOSE: The measurement of relative cerebral blood volume (rCBV) and the volume transfer constant (K(trans)) by means of dynamic contrast-enhanced (DCE) perfusion MR imaging (pMRI) can be useful in characterizing brain tumors. The purpose of our study was to evaluate the utility of these measurements in differentiating typical meningiomas and atypical meningiomas. METHODS: Fifteen patients with pathologically confirmed typical meningiomas and seven with atypical meningiomas underwent conventional imaging and DCE pMRI before resection.rCBV measurements were calculated by using standard intravascular 关 键 词：MR in DCE Dynamic Contrast-Enhanced Perfusion MR Imaging Measurements of Endothelial Permeability Differentiation between Atypical and Typical Meningiomas of