CAJ | 학술논문

目的应用HR-MRI技术对正常人眼球容积及眼外肌进行活体生物测量,获取在活体状态下正常人眼球容积及眼外肌的精确数值,为眼科研究、教学及临床诊断提供参数数据.方法临床实验分析研究.收集2012年11月至2013年12月正常受试者100名(200只眼眶),其中男性50名,女性50名,行HR-MRI眼眶扫描,应用图像处理软件进行相关参数测量眼球容积及眼外肌肌腹最大径层面的水平径及垂直径.结果玻璃体腔容积(4.51±0.26) cm3,与“眼科测量正常值”比较,差异无统计学意义(P =0.148);球内总容积、前房容积、晶状体容积分别为(5.05±0.21) cm3、(0.24±0.26) cm3、(0.23±0.14) cm3,与“眼科测量正常值”比较,差异有统计学意义(P＜0.01).正常人两侧眼外肌对称,最大径线层面各眼外肌短径:下直肌＞内直肌＞上直肌＞外直肌,长径:外直肌＞内直肌＞上直肌＞下直肌.结论 HR-MRI可较好地应用于活体眼球容积及眼外肌肌腹的测量,并可与“眼科测量正常值”进行对照;判断眼外肌可利用双侧眼外肌对称性及眼外肌粗细规律来判断.
목적 응용HR-MRI기술대정상인안구용적급안외기진행활체생물측량,획취재활체상태하정상인안구용적급안외기적정학수치,위안과연구、교학급림상진단제공삼수수거.방법 림상실험분석연구.수집2012년11월지2013년12월정상수시자100명(200지안광),기중남성50명,녀성50명,행HR-MRI안광소묘,응용도상처리연건진행상관삼수측량안구용적급안외기기복최대경층면적수평경급수직경.결과 파리체강용적(4.51±0.26) cm3,여“안과측량정상치”비교,차이무통계학의의(P =0.148);구내총용적、전방용적、정상체용적분별위(5.05±0.21) cm3、(0.24±0.26) cm3、(0.23±0.14) cm3,여“안과측량정상치”비교,차이유통계학의의(P＜0.01).정상인량측안외기대칭,최대경선층면각안외기단경:하직기＞내직기＞상직기＞외직기,장경:외직기＞내직기＞상직기＞하직기.결론 HR-MRI가교호지응용우활체안구용적급안외기기복적측량,병가여“안과측량정상치”진행대조;판단안외기가이용쌍측안외기대칭성급안외기조세규률래판단.
Objective To measure the ocular volume and extraocular muscles of healthy people using the HR-magnetic resonance imaging (MRI) technology,to provide parameters support for eye research,teaching and diagnosis.Methods The study collected 100 cases of normal subjects (200 eyes) from November 2012 to December 2013,50 male cases,50 female cases,accepted line HR-orbital MRI,and image processing software was applied to morphology and statistical analysis.The extraocular muscles,muscle belly level horizontal diameter and maximum diameter vertical diameter were measured.Results The volume of the vitreous cavity (4.51±0.26)cm3 was little different from the anatomic normal value (P=0.148);The volumes of the ocular globe,the anterior chamber,and the lens cavity were (5.05±0.21)cm3,(0.24±0.26)cm3,(0.23±0.14)cm3,with no statistic differences compared with those of the anatomic normal values.The extraocular muscles of normal Chinese were symmetrical on the two sides.The relationships of the short diameters of extraocular muscles in the Maximum Planes were:IR＞MR＞SR＞LR.That of the long diameters of extraocular muscles were:IR＞ MR＞SR＞IR.Conclusions MRI can be used for measuring ocular volume and sizes of extraocular muscles.Compared with the anatomic normal value,the sizes of extraocular muscles can also be assessed by the symmetry on the two sides and by observing the usual rule of extraocular muscles.