Benign and Malignant Meningiomas: Differentiation by Using DSC MR Perfusion Imaging
- VernacularTitle:DSC MR灌注成像在鉴别良恶性脑膜瘤中的价值
- Author:
Hao ZHANG
;
Tianzhen SHEN
;
Xingrong CHEN
;
Jingtao MIAO
- Publication Type:Journal Article
- Keywords:
meningioma;
magnetic resonance imaging (MRI);
perfusion;
brain blood flow
- From:
Journal of Practical Radiology
2001;0(08):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the value of dynamic susceptibility-contrast (DSC) MR perfusion imaging in differentiating benign and malignant meningiomas on the basis of differences in their vascularity in both tumor parenchyma and peritumoral region. Methods 33 patients with pre-operation meningiomas(25 benign and 8 malignant) underwent conventional and DSC MR perfusion imaging. Maximum relative cerebral blood volume (rCBV) and corresponding relative mean transit time (rMTT) values of the same part in both tumor parenchyma and peritumoral region were calculated (compared with contralateral normal white matter). The peritumoral region was defined as the area immediately adjacent (0.05) in parenchyma part and both were statistically significant (t test, ?
