中华放射学杂志
中華放射學雜誌
중화방사학잡지
Chinese Journal of Radiology
2015年
4期
297-300
,共4页
娄晶%曲蕾%史宏璐%周颜慧%郭凌飞%徐磊%王光彬
婁晶%麯蕾%史宏璐%週顏慧%郭凌飛%徐磊%王光彬
루정%곡뢰%사굉로%주안혜%곽릉비%서뢰%왕광빈
蜗神经%年龄因素%磁共振成像
蝸神經%年齡因素%磁共振成像
와신경%년령인소%자공진성상
Cochlear nerve%Age factors%Magnetic resonance imaging
目的 测量不同年龄段听力正常儿童蜗神经的直径,同时探讨其与年龄的相关性.方法 收集正常听力儿童156名共312耳,分为13组,即≤6个月、～1岁、然后～12岁每间隔1岁为1组,每组儿童12名,男、女各6名.所有儿童均行内耳三维稳态进动快速成像(FIESTA)序列扫描.2名阅片者在3.0T MRI横断面及斜矢状面图像上分别测量蜗神经入耳蜗处、内听道中点及内听道底处蜗神经的直径,最后取平均值.2名阅片者测量结果行组内相关系数(ICC)检验,不同性别、侧别间蜗神经直径行独立样本和配对样本t检验;单因素方差分析评价不同测量点蜗神经直径的变化;不同年龄组间蜗神经正常值的变化采用多因素方差分析;Spearman相关分析用于比较蜗神经不同测量点的直径与年龄之间的相关性.结果 本组儿童内听道中点、内听道底处、入耳蜗处蜗神经的直径分别为(1.12±0.08)、(1.05±0.06)、(0.87±0.14)mm,3个测量点间蜗神经直径差异有统计学意义(F=527.57,P＜0.05).蜗神经的直径在性别、侧别间、年龄组间差异均无统计学意义(P值均＞0.05),儿童正常蜗神经直径与年龄无相关性.结论 听力正常的儿童蜗神经直径在内听道不同点直径不同,内听道中点最大,内听道底次之,入耳蜗处最小;且正常值不随年龄的变化而改变.
目的 測量不同年齡段聽力正常兒童蝸神經的直徑,同時探討其與年齡的相關性.方法 收集正常聽力兒童156名共312耳,分為13組,即≤6箇月、～1歲、然後～12歲每間隔1歲為1組,每組兒童12名,男、女各6名.所有兒童均行內耳三維穩態進動快速成像(FIESTA)序列掃描.2名閱片者在3.0T MRI橫斷麵及斜矢狀麵圖像上分彆測量蝸神經入耳蝸處、內聽道中點及內聽道底處蝸神經的直徑,最後取平均值.2名閱片者測量結果行組內相關繫數(ICC)檢驗,不同性彆、側彆間蝸神經直徑行獨立樣本和配對樣本t檢驗;單因素方差分析評價不同測量點蝸神經直徑的變化;不同年齡組間蝸神經正常值的變化採用多因素方差分析;Spearman相關分析用于比較蝸神經不同測量點的直徑與年齡之間的相關性.結果 本組兒童內聽道中點、內聽道底處、入耳蝸處蝸神經的直徑分彆為(1.12±0.08)、(1.05±0.06)、(0.87±0.14)mm,3箇測量點間蝸神經直徑差異有統計學意義(F=527.57,P＜0.05).蝸神經的直徑在性彆、側彆間、年齡組間差異均無統計學意義(P值均＞0.05),兒童正常蝸神經直徑與年齡無相關性.結論 聽力正常的兒童蝸神經直徑在內聽道不同點直徑不同,內聽道中點最大,內聽道底次之,入耳蝸處最小;且正常值不隨年齡的變化而改變.
목적 측량불동년령단은력정상인동와신경적직경,동시탐토기여년령적상관성.방법 수집정상은력인동156명공312이,분위13조,즉≤6개월、～1세、연후～12세매간격1세위1조,매조인동12명,남、녀각6명.소유인동균행내이삼유은태진동쾌속성상(FIESTA)서렬소묘.2명열편자재3.0T MRI횡단면급사시상면도상상분별측량와신경입이와처、내은도중점급내은도저처와신경적직경,최후취평균치.2명열편자측량결과행조내상관계수(ICC)검험,불동성별、측별간와신경직경행독립양본화배대양본t검험;단인소방차분석평개불동측량점와신경직경적변화;불동년령조간와신경정상치적변화채용다인소방차분석;Spearman상관분석용우비교와신경불동측량점적직경여년령지간적상관성.결과 본조인동내은도중점、내은도저처、입이와처와신경적직경분별위(1.12±0.08)、(1.05±0.06)、(0.87±0.14)mm,3개측량점간와신경직경차이유통계학의의(F=527.57,P＜0.05).와신경적직경재성별、측별간、년령조간차이균무통계학의의(P치균＞0.05),인동정상와신경직경여년령무상관성.결론 은력정상적인동와신경직경재내은도불동점직경불동,내은도중점최대,내은도저차지,입이와처최소;차정상치불수년령적변화이개변.
Objective To measure the diameter of cochlear nerve(CN) in normal hearing children with different ages,and evaluate the diameter variations with age.Methods A total of 156 normal-hearing children were assessed with 3D-FIESTA sequence scanning of the inner ear.All the subjects were divided into 13 groups according to age,witha group of ≤6 months,a group of ≤1 year,and 11 groups from one year to 12 years.Each group had 12 cases,including 6 boys and 6 girls.The diameter of CN was measured at the entrance of the cochlea,the middle of internal auditory canal(IAC) and the fundus of IAC respectively on the axial and oblique sagittal images of 3.0 T MRI by two independent observers.The average values measured by them were the final results.The intraclass correlation coefficient was used to determine the consistency between the two independent observers.The t test was used to access differencesin CN diameter by sex and sides.One-way analysis of variance(ANOVA) and two-way ANOVA were used for comparisons among different groups.Spearman correlation coefficient was applied to find a correlation between the CN diameter and age.Results The diameters of normal-hearing children's CN at the middle of the IAC,IAC fundus and the entrance of the cochlea were (1.12 ± 0.08),(1.05 ± 0.06),(0.87 ± 0.14) mm respectively,and there was significant difference among the three measuring points (F=527.57,P＜0.05).The diameters of the CN had no significant differenc (P＞0.05) in age-groups,gender and sides(P＞0.05),and there was no correlation between the diameters of normal children's CN and age.Conclusions The diameters of normal-hearing children's CN change with different points of the IAC,of which the maximum value is at the middle of the IAC,followed by the IAC fundus,and the entrance of the cochlea is at the minimum,more over the normal size doesn't change with age.
