Demaerel P, Wilms G, Lammens M, Marchal G, Plets C, Goffin J, Baert A L
Department of Radiology, University Hospitals, K.U. Leuven, Belgium.
J Comput Assist Tomogr. 1991 Jan-Feb;15(1):45-51.
The magnetic resonance (MR) findings in 50 surgically verified intracranial meningiomas were reviewed. An attempt was made to correlate their signal intensity on spin echo (SE) T1-weighted, proton density [N(H)], and T2-weighted images with the different histologic subtypes. The T1-weighted images were nonspecific in differentiating the subtypes of meningiomas. On proton density and T2-weighted images, more information was available, but there remained large group (46%) of meningiomas that were not classifiable. The average signal intensity scores on T1-weighted, proton density, and T2-weighted images in the different histologic subtypes were correlated with each other using the Student t test. Only one significant correlation (psammomatous-anaplastic) and three almost significant correlations (syncytial-transitional or psammomatous and transitional-psammomatous) were found. Different histologic subtypes may have a different MR appearance, but this does not suffice to reach a histologic diagnosis by MR imaging.
回顾了50例经手术证实的颅内脑膜瘤的磁共振（MR）表现。试图将其在自旋回波（SE）T1加权、质子密度[N（H）]和T2加权图像上的信号强度与不同的组织学亚型相关联。T1加权图像在区分脑膜瘤亚型方面不具有特异性。在质子密度和T2加权图像上可获得更多信息，但仍有一大组（46%）脑膜瘤无法分类。使用学生t检验对不同组织学亚型在T1加权、质子密度和T2加权图像上的平均信号强度评分进行相互关联。仅发现一个显著相关性（沙粒体型-间变性）和三个几乎显著的相关性（合体细胞型-过渡型或沙粒体型与过渡型-沙粒体型）。不同的组织学亚型可能有不同的MR表现，但这不足以通过MR成像做出组织学诊断。
