颈动脉体瘤影像学表现分析  

Imaging Analysis of Carotid Body Tumor

作　　者：王治民[1] 唐志峰[2] 王玉斌[1] 周怀琪[3] 印建国[4] 

机构地区：[1]甘肃省人民医院放射科,甘肃兰州730000 [2]天水市第四人民医院 [3]兰州大学第一医院 [4]兰州军区总医院

出　　处：《实用放射学杂志》2008年第12期1607-1609,共3页Journal of Practical Radiology

摘　　要：目的探讨颈动脉体瘤影像学表现及诊断价值。方法33例颈动脉体瘤均经手术病理证实,均行X线平片及超声检查,其中28例经血管造影、20例行CT、16例行MRI和10例行MRA检查。回顾性分析颈动脉体瘤的各种影像学表现,评价其临床价值。结果各种检查均可显示肿瘤部位及其形态,颈动脉体瘤的B型超声特点为中等偏低实质回声,>3 cm的肿瘤可见管道结构,但肿瘤上缘观察欠清,2例行彩色多普勒超声显示瘤内网状血管。CT增强显示为富血管肿瘤,其中1例肿瘤均匀强化,颈内、外动脉密度与瘤体等同难以分辨。MRI的特点为瘤内见流空的血管影像,明确显示颈内、外动脉分离。MRA能良好显示肿瘤与颈总动脉及其分叉的关系。血管造影可明确显示供血动脉。结论B超、CT和MRI对颈动脉体瘤的诊断各具一定的特征性。Objective To study the imaging features of carotid body tumors and the diagnostic value of imageology. Methods 33 cases with carotid body tumor proved by pathology were examined with X - ray and ultrasonic,in them, DSA in 28, CT in 20, MRI in 16 and MRA in 10 were performed. Images representations of carotid body tumor were analysed retrospectively. Results The locations and configurations of carotid body tumor were demonstrated by all above examintions. Ultrasonic features of tumors were parenchyma echo with low echo in the centre of tumor,the tract structures could be observed and the upper margins of tumor were undefinite in the tumors 〉 3.0 cm in diameters. Contrast -enhancement CT showed tumors with abundant blood vessel, 1 case appeared as uniform enhancement and was difficult to distinguish-between tumor body and internal carotid and external carotid because of the iso - density of them. On MRI,the flow void blood vessels inside the tumors could be identified and internal carotid and external carotid separated. MRA displayed all the relation between the tumors and carotid and its branches. DSA could demonstrate the supply arteries of the tumors. Conclusion Ultrasonics , CT, MRI and DSA have own definitely characteristic value in diagnosing carotid body tumor.

关 键 词：颈动脉体瘤 体层摄影术 X线计算机 磁共振成像 超声检查 

分 类 号：R739.91[医药卫生—肿瘤] R814.42[医药卫生—临床医学]