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累及中后颅凹邻界区的肿瘤并不少见,CT对颅内肿瘤的诊断已较简单可靠,但对中后颅凹邻界区肿瘤,判断肿瘤是否仅累及一区或同时侵犯两个区,在术前确定肿瘤的累及范围和程度,是十分重要的,即或应用CT有时也难免诊断困难。MRI能清晰地显示中后颅凹邻界区的组织解剖关系,对该区占位病变的累及范围,判断其起源比CT更准确。本文主要讨论MRI在中后颅凹邻界区肿瘤诊断中的应用。
It is not uncommon for tumors involving the mid-posterior cranio-sulcus, CT to diagnose intracranial tumors has been relatively simple and reliable, but to determine whether the tumor is involved in only one area or in both , It is very important to determine the extent and extent of tumor involvement before surgery, that is, the application of CT is sometimes difficult to diagnose. MRI can clearly show the tissue anatomy of the adjacent area of the mid-posterior cranial recess, and it is more accurate than the CT to judge the origin of the lesions in the area. This article mainly discusses the application of MRI in the diagnosis of tumors in the posterior cranial recession.