眼眶海绵状血管瘤的多层CT、MRI诊断在临床的应用

目的运用多层CT、低场MRI对眼眶海绵状血管瘤进行诊断分析，为临床手术提供最大的帮助。方法对32例眼眶海绵状血管瘤进行CT、MRI及动态增强检查。对病变进行三维重建。结果CT及MRI均可反映肿瘤的良性特征，根据肿瘤的影像学表现可对大多数眼眶海绵状血管瘤作出定性诊断。两种方法均有助于肿瘤的准确定位，随着多层的三维应用。CT对肿瘤与眶壁的关系诊断准确，MRI可明确肿瘤与视神经的关系。增强扫捕均可反映血管瘤病理特性。结论CT及MRI对本病的定位诊断均有重要作用，强化特点对定性诊断有重要作用。为临床术前提供准确诊断，为手术提供三维模拟路径。

Application of Multilayer CT and MRI in the Diagnosis and Analysis of Orbital Cavernous Hemangioma

Objective To apply muhilayer CT and hypo-field MRI in the diagnosis and analysis of orbital eavernous hemangioma, and offer the maximal help to the clinical operation. Methods Thirty-two eases of cavernous hemangioma were evaluated by hypo-field MRI and multilaver CT, and marched the affections by three-dimensional reconstruction. Results CT and MRI could demonstrate the benign features of the tumor. Both modalities clearly delineated the lesion and this information, together with the clinical findings, usually led to the correct indicatiun of histology. The two methods helped decide spatial dimensions of the tumor precisely. By the three-dimensional reconstruction use of multilayer CT could make the accurate diagnosis between tumor and orbital wall, and MRI was particularly useful to reveal the relationship of tumor with the optic nerve. The enhancement scanning could reflect the physiological nature of tumor. Conclusion CT and MRI both make the important effect to the level diagnosis of orbital cavernous hemangioma, as the same as the features of strengthening. All these provided the exact diagnosis and three dimensions consequence pathway before clinical operation.