骨性耳蜗密度的HRCT测定  

HRCT Densitometry of Bone Cochlear

作　　者：高璐[1] 郑晓华[2] 谢宝君[2] 许永华[1] 

机构地区：[1]上海市第八人民医院放射科,200235 [2]武汉大学人民医院放射科

出　　处：《中国医学计算机成像杂志》2001年第6期377-379,共3页Chinese Computed Medical Imaging

摘　　要：目的 :利用HRCT测量骨性耳蜗的密度变化 ,建立正常的参数范围 ,分析这些参数随年龄、性别等的变化特点 ,并讨论其临床指导意义。材料和方法 :收集非内耳疾病的患者52例 ,其中男32例 ,女20例 ,年龄7～75岁 ,平均40.5岁 ,将患者按年龄、性别、左右分组。全部患者先行颞骨原始扫描 ,之后以0.2mm间隔 ,9.6cm视野 ,以内耳为中心 ,行单侧局部高分辨率骨重建 ,获得重建图像 ,其中右耳49只 ,左耳47只。测量耳蜗各转密度。结果 :耳蜗密度不同部位有所不同 ,中间转、底转、顶转密度依次降低 ,均值分别为1989.6410±65.3648Hu ,1943.2424±73.5318Hu和1907.2813±92.4501Hu ,且各年龄、性别组间耳蜗各转密度均有显著性差异(p<0.05)。结论To measure the density of bone cochlear by HRCT,thus a series of normal parameters was established.Then analysis the variation of these data between different groups and explore their clinical usefulness.Materials and Method:52 patients with normal inner ears were performed by spiral CT(GE medical systems) and the mean age was 40.5 years(ranging from 7～75 years).The patients were studied in different groups according to their age,sex and ear side.Results:The different density was seen in different part of bone cochlear,with the highest(meaning 1989.6410±65.3648 Hu) around the middle turn and lowest(meaning 1907.2813±92.4501Hu) around the basal turn.Conclusion:These data were greatly helpful in clinical diagnose.

关 键 词：高分辨率CT 骨迷路 密度 测定 

分 类 号：R816.96[医药卫生—放射医学]