成人泪囊超声三维重建影像特征的初步研究

Preliminary study on features of three-dimensional ultrasound reconstruction of the lacrimal sac of normal adults

目的 探讨超声三维重建显示并测量成人活体泪囊及内眦动脉的效果.方法 系列病例研究.选取武警总医院眼科泪器病中心2009年10月至2010年10月经眼科专科医师检查无泪道相关疾病的其他眼病患者80例（80只眼）,利用GE Voluson E8型超声诊断仪（三维超声诊断仪器）,妇科腔内探头,频率5 ～ 12 MHz对其进行检测,每项数据重复测量3次,取其平均值.采用t检验对数据进行统计学分析.结果 成年男性受试者泪囊腔垂直径、前后径、横径大小分别为（13.3±2.0） mm、（6.2±1.1）mm、（5.0 ±0.9）mm;成年女性受试者泪囊腔垂直径、前后径、横径大小分别为（13.1 ±2.2） mm、（5.8±1.0）mm、（4.8±0.8）mm,两者比较差异无统计学意义（t=1.63,1.45,1.41,P＞0.05）.成年男性受试者泪囊腔（顶、底）到皮肤表面、内眦角顶点的距离分别为（6.5±0.1）mm、（5.9 ±0.1）mm、（6.8 ±0.1）mm、（8.8 ±0.1）mm;成年女性的测量结果分别为（6.1 ±0.1）mm、（5.7 ±0.l）mm、（6.2±0.1）mm、（8.6 ±0.1）mm,两者比较差异无统计学意义（t=1.30,1.56,1.45,1.63,P＞0.05）.成年男性受试者内眦动脉到皮肤表面、内眦角顶点的距离分别为（7.7 ±0.1）mm、（8.0 ±0.0）mm;成年女性的测量结果分别为（7.6±0.1）mm、（7.9±0.1）mm,两者比较差异无统计学意义（t=1.38,1.34,P＞0.05）.结论 超声三维重建能较清晰地显示成人活体泪囊和内眦动脉形态,测量出具体影像解剖学数据.

Objective To measure and accumulate imaging anatomical data of lacrimal sac and medial canthal artery,and provide the knowledge for clinical diagnosis and therapy of lacrimal diseases.Methods 80 volunteers （80 eyes） who were eliminated the tearing related diseases by ophthalmologist were included.GE Voluson E8 ultrasound diagnostic apparatus with probe of high frequency 5-12 MHz was used,the probe of the three-dimensional ultrasound contacted eyes indirectly.The vertical diameter,anteroposterior diameter,width of lacrimal sac were measured,and vertical distance between top to bottom of lacrimal sac and medial canthus to skin,vertical distance between medial canthal artery and medial canthus to skin were also measured.Results The measurement results of adult male subjects of lacrimal sac cavity vertical diameter and anteroposterior diameter and diameter were （13.3 ± 2.0） mm,（6.2 ± 1.1） mm,（5.0 ± 0.9） mm; the measurement results of adult female subjects of lacrimal sac cavity vertical diameter and anteroposterior diameter and diameter were （13.1 ± 2.2） mm,（5.8 ± 1.0） mm,（4.8 ± 0.8） mm,the difference was not statistically significant（t =1.63,1.45,1.41,P ＞ 0.05）.The measurement results of adult male subjects of lacrimal sac cavity （top,bottom） to the top of the skin surface and medial canthal were （6.5±0.1） mm,（5.9 ±0.1） mm,（6.8±0.1） mm,（8.8±0.1） mm; the adult female group measurements were （6.1 ±0.1） mm,（5.7 ±0.1） mm,（6.2 ±0.1） mm,（8.6 ±0.1） mm,the difference was not statistically significant（t =1.30,1.56,1.45,1.63,P ＞ 0.05）.The measurement results of adult male subjects vertex are angular artery to the skin surface and medial cantbal were （7.7 ± 0.1） mm,（8.0 ± 0.0） mm ; the adult female group measurements respectively （7.6 ± 0.1） mm,（7.9 ± 0.1） mm,the difference was not statistically significant （t =1.38,1.34,P ＞ 0.05）.Conclusions Lacrimal sac and medial canthal artery can be showed clearly in three-dimensional ultrasound reconstruction,this can provide the guidance for clinical diagnosis and therapy of lacrimal deseases.