颈动脉体瘤的DSA诊断

目的：加深对颈动脉体瘤DSA表现特点的认识,探讨其诊断及介入治疗价值。方法：由两位有经验的放射学医师按双盲法对12例动脉体瘤的DSA造影资料进行回顾性分析,然后共同讨论并达成一致意见。结果：DSA均能明确诊断。所有患者均见颈动脉分叉角度增大,颈内、外动脉移位;大部分瘤体以颈外动脉供血为主,血供较丰富;6例患者瘤体包绕颈动脉者可见局部血管受侵。2例患者栓塞后造影见肿瘤染色范围缩小,且术中出血明显减少。结论：DSA是颈动脉体瘤的诊断和术前评估的有效手段,术前栓塞有利于减少术中出血。

DSA diagnosis of carotid body tumor

Objective:To make a further understanding of the DSA features of the carotid body tumor (CBT) and to explore the value of DSA for diagnosis and interventional treatment of the tumor.Methods:Twelve cases of CBT with DSA data were analyzed retrospectively.The DSA appearances in all patients were observed in a double blinded manner by two experienced radiologists together and a consensus interpretation was formed.Results:DSA can establish definitive diagnosis in all cases.The DSA features of the CBT were:the increase of bifurcation angles of internal and external carotid arteries in all cases;the CBT was supplied by external carotid arteries in most cases and there was significant increase of blood supply of the tumor;invasion of internal or external carotid arteries in 6 cases.The tumor staining reduced in extent after the supplying arteris were embolized in 2 cases,and the bleeding during the operation reduced significantly.Conclusion:DSA is useful in the diagnosis of the CBT and for therapeutic planning.The pre operative embolization of the CBT contributes to reduce the bleeding during operation.