海绵窦区海绵状血管瘤的磁共振诊断

目的　探讨MRI、CT、数字减影血管造影 (DSA)对海绵窦区海绵状血管瘤诊断的准确性和特异性。方法　 7例经手术病理证实海绵窦区海绵状血管瘤患者 ,全部行头颅MRI平扫和增强扫描 ,其中 2例行磁共振血管成像 (MRA)检查 ,2例行CT检查 ,2例行DSA检查。结果　 7例海绵窦区海绵状血管瘤在T1WI为等、低信号 ,6例在T2WI呈均匀明显高信号 ,1例呈混杂信号。病灶形态呈哑铃形或卵圆形 ,边界清楚。注射造影剂后肿瘤显著强化 6例 ,不均匀强化 1例。 2例CT检查表现为均匀较高密度影 ;2例DSA缺乏明显的肿瘤染色。结论　海绵窦区海绵状血管瘤在MR图像上有其特异性 ,综合分析临床点及MRI、CT和DSA等影像表现 ,有利于正确诊断 ,确定手术入路 ,指导手术过程

Imaging diagnosis of cavernous sinus cavernous hemangioma

Objective To investigate MRI,CT and DSA findings of cavernous sinus cavernous hemangioma(CSHA). Methods Seven cases of CSHA with pathologic confirmation were investigated.All patients underwent MRI and enhanced scaning. Two cases received MRA, 2 received CT scan and 2 received DSA examination. Results High signal intense characteristic of CSHA on T2WI and Gd-DTPA enhanced T1WI appeared to a sensitive and specific marker. Two cases had homogenous slight hyperintensity on CT images.Obvious staining did not see on DSA images. Conclusion The MRI demonstrations of CSHA are characteristic signs. According to the features of MRI,CT and DSA imaging of CSHA the correct diagnosis could be done before operation.