Mawhinney R R, Buckley J H, Worthington B S
Br J Radiol. 1986 Oct;59(706):961-9. doi: 10.1259/0007-1285-59-706-961.
A variety of extra-axial lesions occurring at the cerebello-pontine angle was examined by magnetic resonance imaging (MRI). Differences in spin sequence characteristics were found between neurilemmomas and meningiomas, with neurilemmomas exhibiting a greater increase in T2 than meningiomas. The T1 images were of less value in differentiating between neurilemmomas and meningiomas but were of value in the diagnosis of vascular lesions, due to the decreased T1 of blood clot. The T1 images were also of value in the assessment of tumour size and in the diagnosis of an epidermoid cyst. Extension of tumour into the internal auditory meatus was seen on MRI with acoustic neuromas and with one other lesion. The transverse perspective was of greatest value in lesion assessment. The coronal perspective was useful in certain situations but the sagittal perspective was of minimal clinical value.
采用磁共振成像（MRI）对发生于小脑脑桥角的多种轴外病变进行了检查。发现神经鞘瘤和脑膜瘤在自旋序列特征上存在差异，神经鞘瘤在T2加权像上的信号增强比脑膜瘤更明显。T1加权像在鉴别神经鞘瘤和脑膜瘤方面价值较小，但在诊断血管病变时具有价值，因为血凝块的T1加权像信号降低。T1加权像在评估肿瘤大小和诊断表皮样囊肿方面也具有价值。在MRI上，听神经瘤及其他一种病变可见肿瘤延伸至内耳道。横断面视角在病变评估中价值最大。冠状面视角在某些情况下有用，但矢状面视角临床价值最小。
