摘要
目的 通过CT螺旋扫描多方位重建成像 ,更好地显示环杓关节脱位的三维改变 ,证实螺旋CT对环杓关节改变显示的可靠性。方法 15例经纤维喉镜检查和录像动态喉镜观察的环杓关节脱位患者接受螺旋CT成像检查 ,以 10例无声嘶的健康人轴位图像作正常对照 ,设计一种在轴位图像鉴别杓状软骨脱位的方法。结果 15例患者薄层轴位CT成像显示环杓关节异常 ,所有患者的声门裂两侧底角不相等 ,患侧底角明显小于 (8例 )或明显大于 (7例 )健侧底角 ,量角器测量两角之差在5°～ 4 5° ,其中 13例两角之差在 10°～ 30°。正常对照组中 8例声门裂两底角完全相等 ,2例声门裂两底角有很小差别 ,分别为 2°和 3°。高质量的矢状位和冠状位重建图像可以明确脱位的杓状软骨的定向。结论 声门裂患侧底角与健侧底角不相等是诊断杓状软骨脱位的一项客观指标。
Objective To demonstrate the cricoarytenoid relationship presented with spiral computed tomography and to show that the reconstraction of arytenoid dislocation can be presented by using multiplanar reconstruction algorithms Methods Fifteen patients with arytenoid dislocation documented by fiberoptic laryngoscopy and strobovideolaryngoscopy and 10 normal person were displayed with spiral CT A making design of our own has been used to diagnose arytenoid dislocation on axial CT image Results Dislocation of cricoarytenoid joint were consistently demonstrated on several of the overlapping thin axial reconstructions in each of the 15 patients, in whom asymmetry of the bilateral cricoarytenoid joints was noted on axial images Especially, by means of ordinary protractor, it has been found on the glottic fissure level that the basal angle of abnormal side in 8 patients is larger than the one of normal side, and smaller in 7 patients, the value difference of two basal angles ranges from 5 to 45 in 15 patients,13 of whom ranges from 10 to 30 Whereas right basal angle is equal to left one in 8 except 2 whose value difference of two basal angles is very small, respectively 2 and 3, in 10 normal person High quality sagittal and coronal reconstructive images often were helpful in confirming or clarifying the complex arytenoid orientations Conclusion The findings that two side basal angle is not equal in triangle of glottic fissure can be used as a parameter to arytenoid dislocation Spiral CT is a useful adjunct in diagnosing and treating dislocation of cricoarytenoid joint
出处
《中华耳鼻咽喉科杂志》
CAS
CSCD
北大核心
2002年第3期223-225,共3页
Chinese Journal of Otorhinolaryngology
关键词
螺旋CT
诊断
环杓关节脱位
应用
喉
Laryngeal diseases
Tomography, X ray computed
Dislocation of cricoarytenoid joint
