Kingsley D P, Brooks G B, Leung A W, Johnson M A
AJNR Am J Neuroradiol. 1985 Jan-Feb;6(1):1-5.
Proton magnetic resonance imaging (MRI) examinations were performed in six patients with seven acoustic neuromas, and the results were compared with conventional tomography of the internal auditory canals, contrast-enhanced computed tomography (CT), and air CT cisternography. All tumors were identified with MRI. The three largest tumors (greater than 1 cm diameter) looked similar to the tumors seen on CT scans, although the extent of the tumor was better seen with MRI in two cases. The four small (less than or equal to 1 cm diameter) cerebellopontine angle and intracanalicular tumors were well seen with MRI, with appearances corresponding to those seen with air CT cisternography. No side effects were encountered with the MRI examinations. MRI is an accurate, noninvasive alternative to contrast-enhanced CT and air CT cisternography in the diagnosis of acoustic neuromas.
对6例患有7个听神经瘤的患者进行了质子磁共振成像（MRI）检查，并将结果与内耳道传统断层扫描、增强计算机断层扫描（CT）和气脑池造影进行了比较。所有肿瘤均通过MRI得以识别。3个最大的肿瘤（直径大于1 cm）在MRI上的表现与CT扫描所见的肿瘤相似，不过在2例中MRI能更好地显示肿瘤范围。4个较小的（直径小于或等于1 cm）桥小脑角和内耳道肿瘤在MRI上显示良好，其表现与气脑池造影所见相符。MRI检查未出现任何副作用。在听神经瘤的诊断中，MRI是增强CT和气脑池造影的一种准确、无创的替代方法。
