论文部分内容阅读
收集了8例颅内巨大动脉瘤的CT资料.主要CT征象为:(1)均一略高密度阴影,明显强化;或高、等密度阴影,呈“斗牛眼”状构型,偏心显著强化及边缘轻度强化.(2)形态规整、边界清楚、光滑.(3)病灶周围无脑水肿.(4)好友于蝶鞍周围.1例颞部巨大动脉瘤,其含血瘤腔呈弯曲蚯蚓状,十分罕见,单凭脑血管造影难于诊断;CT检查可区分含血瘤腔、动脉瘤壁及附壁血栓等结构,诊断较易.结合文献讨论了CT表现及其病理基础.
CT data of 8 cases of giant intracranial aneurysms were collected and the main CT signs were: (1) uniform slightly high-density shadows, significantly enhanced; or high-density shades, showing “bull’s eye” (2) shape regularity, the border is clear and smooth. (3) No cerebral edema around the lesion. (4) Friends in the sella around .1 cases of temporal giant aneurysms, the blood containing tumor was Curved earthworm, is very rare, difficult to diagnose cerebral angiography alone; CT examination can distinguish between blood-containing tumor, aneurysmal wall and mural thrombus and other structures, the diagnosis easier.Combined with the literature on the CT findings and pathology.