Batra M
Abteilung für diagnostische und interventionelle Neuroradiologie, Universitätsklinik Tübingen, Hoppe-Seyler-Str. 3, 72076 Tübingen.
Ophthalmologe. 2013 May;110(5):415-20. doi: 10.1007/s00347-012-2702-0.
Magnetic resonance imaging (MRI) is the method of choice for the diagnosis of sphenoid wing meningiomas. The close relationship situation to vascular and neural structures especially at the skull base can best be assessed with MRI. With a typical configuration and extent the diagnosis of meningiomas can be made on visual examination and MRI is also the standard imaging technique for follow-up of treated and asymptomatic meningiomas. In the preoperative evaluation, computed tomography is a complementary examination technique which can demonstrate the extent and type of bone involvement more precisely. This additional information is important to differentiate meningiomas from differential diagnoses, such as metastases, sarcomas, and primary osseous changes, such as fibrous dysplasia or Paget's disease. Positron emission tomography computed tomography (PET-CT) and PET-MRI are also supplemental examination procedures which can be used for determining tumor volume before a planned radiotherapy and can be helpful in the diagnosis of atypical meningiomas due to the selective binding of the tracer DOTATOC. Conventional angiography is only rarely used preoperatively.
磁共振成像(MRI)是诊断蝶骨嵴脑膜瘤的首选方法。通过MRI能够最佳地评估蝶骨嵴脑膜瘤与血管及神经结构的紧密关系,尤其是在颅底的情况。凭借典型的形态和范围,通过视觉检查即可诊断脑膜瘤,MRI也是治疗后及无症状脑膜瘤随访的标准成像技术。在术前评估中,计算机断层扫描(CT)是一种辅助检查技术,它能更精确地显示骨质受累的范围和类型。这些额外信息对于鉴别脑膜瘤与诸如转移瘤、肉瘤等鉴别诊断以及诸如骨纤维异常增殖症或佩吉特病等原发性骨病变非常重要。正电子发射断层扫描计算机断层成像(PET-CT)和PET-MRI也是补充检查程序,可用于在计划放疗前确定肿瘤体积,并且由于示踪剂DOTATOC的选择性结合,有助于非典型脑膜瘤的诊断。常规血管造影术前很少使用。