摘要
目的:探讨眼部肿瘤的灰阶及彩色多普勒超声显像特点及其诊断价值。方法:对42例经术后病理证实的眼部肿瘤(15例视网膜母细胞瘤,11例脉络膜黑色素瘤,16例眼眶海绵状血管瘤)术前超声检查资料进行回顾性分析,重点观察肿块大小、边界、形态、回声特点、有无钙化、后方回声、血流情况和阻力指数等。结果:93.3%(14/15)视网膜母细胞瘤伴有钙化,7例伴有视网膜脱离;肿瘤内丰富血流信号与视网膜中央动脉相延续,但血流速度和阻力指数明显增高,PSV为(25.49±4.97)cm/s,RI为(0.797±0.063)。脉络膜黑色素瘤后方回声衰减显著,可见"挖空征",并发视网膜脱离7例;部分肿块血流较丰富,PSV(10.18±2.37)cm/s,RI(0.586±0.042)。与视网膜母细胞瘤相比,差异有显著统计学意义(P<0.001)。眼眶内海绵状血管瘤回声分布均匀,后方回声衰减,肿块内缺乏血流信号,加压后肿块可缩小。结论:彩色多普勒超声诊断眼部肿瘤的准确性较高,是诊断眼部肿瘤的可靠方法,有重要的临床应用价值,但对早期小肿瘤的诊断有一定难度。
Objective:To discuss the characteristics of gray-scale and color Doppler flow imaging(CDFI) and their clinical value diagnosing ophthalmological tumor.Methods:The preoperative sonographic data in 42 patients with ophthalmological tumors,including 15 cases of retinoblastoma(RB),11 cases of choroidal melanoma,16 cases of orbital cavernous hemangioma(OCA) and all were identified by operation and pathology,were analyzed retrospectively.The emphases of observation focused on the magnitude,boundary,morphology echoes,calcification,echoes behind the tumor,and the quantity,distribution,speed resistance index of blood vessels.Results:Of 15 patients with RB,14 had calcified dots in lumps,7 cases had retina detachment(RD),abundant blood flow appeared in all patients.The blood velocity was(25.49±4.97)cm/s,the resistance index(RI) were 0.797±0.063.The behind echoes were attenuated in all cases of choroidal melanoma,and 8 cases had retina RD,abundant blood flow appeared in partial patients.The blood velocity was(10.18±2.3)7cm/s,RI were 0.586±0.042.Compared with retinoblastoma,the difference was statistically significant(P0.001).Cavernous hemangioma presented the solid parenchymal lumps which had homogeneous high echoes and clear boundaries and lay in the orbit,the posterior echoes of the lumps were attenuated but its posterior boundary still showed clearly.It was not obvious blood flow to appear in the lumps using CDFI.Conclusion:The correct diagnostic rates of CDFI in both localizing and differentiating ophthalmological tumor are high.Therefore,CDFI is an important method for detecting ophthalmological tumor,and possesses great diagnostic value,but there is some difficult in diagnosing early smaller tumor.
出处
《现代医药卫生》
2011年第2期186-187,共2页
Journal of Modern Medicine & Health
关键词
彩色多普勒
眼部肿瘤
Color Doppler flow imaging
Ophthalmological tumor