McGeachie R E, Nelson M J
Department of Diagnostic Radiology, University of Minnesota, Minneapolis.
Top Magn Reson Imaging. 1989 Dec;2(1):25-40.
Magnetic resonance imaging is the modality of choice for the characterization of intracranial inflammation, by defining ependyma, white matter, gray matter, and leptomeningeal involvement. Hemorrhage is well shown, but calcification is difficult to identify. Intravenous Gd-DTPA is useful in the evaluation of B-b barrier abnormalities. Although it is not often possible to make a specific microbiologic diagnosis, MR appearances are usually helpful in excluding other abnormalities, such as neoplasm or infarction. Knowledge of the number and size of individual lesions is invaluable in monitoring therapy.
磁共振成像（MRI）是用于颅内炎症特征性诊断的首选检查方法，它可以明确室管膜、白质、灰质以及软脑膜是否受累。MRI能很好地显示出血，但难以识别钙化。静脉注射钆喷酸葡胺（Gd-DTPA）有助于评估血脑屏障异常。虽然通常无法做出特定的微生物学诊断，但MRI表现通常有助于排除其他异常情况，如肿瘤或梗死。了解单个病变的数量和大小对于监测治疗非常重要。
