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脑膜瘤是颅内常见的肿瘤之一,大部分脑膜瘤血供丰富,手术准备不足往往引起大量出血,DSA为血管性病变诊断的金标准,但有创且不能显示瘤体及周边组织的关系。作为无创的CTA和MRA等不但可以显示肿瘤的血液供应还能显示瘤体与血管之间的关系,注射对比剂后的影像学检查对脑膜瘤血供的评价更精确。
Meningioma is one of the most common intracranial tumors. Most of meningiomas have abundant blood supply, which often leads to massive bleeding. DSA is the gold standard for the diagnosis of vascular lesions, but invasive and can not show the relationship between the tumor and surrounding tissues . As a non-invasive CTA and MRA can not only show the tumor’s blood supply can also show the relationship between the tumor and the blood vessels, imaging contrast after injection of meningioma blood supply is more accurate evaluation.