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CT and MRI diagnosis on the rupture of traumatic pseudoaneurysms of the cavernous segment of the internal carotid artery into the sphenoid sinus

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Author:
No author available
Journal Title:
CHINESE JOURNAL OF RADIOLOGY
Issue:
6
DOI:
10.3760/j.issn:1005-1201.2006.06.006
Key Word:
动脉瘤,假性;颈内动脉;蝶窦;体层摄影术,X线计算机;磁共振成像

Abstract: 目的评价CT和MRI对颈内动脉海绵窦段创伤性假性动脉瘤(TPA)破入蝶窦的诊断价值.方法对经DSA证实的6例海绵窦段TPA破入蝶窦的CT和MRI资料进行回顾性分析.全部患者均行CT检查,5例行MR检查.结果6例颈内动脉海绵窦段TPA中,CT平扫均显示蝶窦侧壁骨折及其密度增高,2例CT增强扫描均可见蝶窦呈明显均匀强化,强化程度与正常血管一致,海绵窦扩大,1例CT血管成像(CTA)明确显示动脉瘤体与瘤颈.5例行MR SE序列平扫,患者均表现为分层状混杂长T1、混杂长T2信号的血栓,4例尚可见瘤腔内的流空现象;3例增强扫描示蝶窦呈明显均匀强化,强化程度与正常血管一致,其中1例在相位编码方向上流动伪影明显;2例MR血管成像均明确显示瘤体与瘤颈.结论CT和MRI是诊断颈内动脉海绵窦段TPA破入蝶窦的有效非创伤性检查,并可作为手术前后长期随访的良好检查方法.

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