CT多平面重组技术对先天性骨性鼻泪管发育异常的解剖特点  

Anatomic feature research of congenital nasolacrimal canal dysplasia on CT multiplanar reconstruction

作　　者：王争[1] 王凤仙[1] 韩立坡[1] 刘秀平[1] 封秀蓉[1] 刘冬悦 张诚玥[2] Wang Zheng;Wang Feng-xian;Han Li-po(Department of ophthalmology,Bao ding Children’s Hospital,Baoding 071000,China)

机构地区：[1]保定市儿童医院,071000 [2]首都医科大学附属北京儿童医院眼科,儿科学国家重点学科,国家儿童医学中心

出　　处：《中国斜视与小儿眼科杂志》2021年第1期32-32,I0010,33,共3页Chinese Journal of Strabismus & Pediatric Ophthalmology

摘　　要：目的通过CT多平面重组技术分析先天性单侧骨性鼻泪管发育异常儿童骨性鼻泪管的解剖特征。方法回顾性病例研究。收集2015年1月至2020年1月在保定儿童医院眼科就诊的11例单侧先天性骨性鼻泪管发育异常患儿的泪道CT多平面重组技术检查资料,分析异常发育的骨性鼻泪管解剖特征并测量双侧鼻泪管起始段骨性鼻泪管的横径、垂直径及高度。单侧先天性骨性鼻泪管发育异常患儿双侧起始段骨性鼻泪管横径、垂直径进行配对t检验,同时将其双侧骨性鼻泪管高度进行配对t检验。结果 CT多平面重组技术显示先天性骨性鼻泪管发育异常的解剖特征为骨性鼻泪管起始段未见明显异常,到达中段及末段时出现明显狭窄甚至闭锁。11例单侧先天性骨性鼻泪管发育异常儿童其患侧起始段骨性鼻泪管横径[(4.62±0.81) mm]均较健侧[(3.41±0.68) mm]明显扩大(t=5.665,P=0.000);其患侧垂直径[(5.43±1.10) mm]均较健侧[(4.34±1.02) mm]明显扩大(t=6.665,P=0.000)。且健侧高度明显大于患侧(t=5.931,P=0.000)。结论先天性骨性鼻泪管发育异常患儿其骨性鼻泪管异常的位置主要在中末段,表现为明显的狭窄甚至闭锁。患侧骨性鼻泪管长度明显短于健侧。Objective To investigate the anatomical characteristic of bony nasolacrimal duct in unilateral congenital nasolacrimal canal dysplasia with CT multiplanar reconstruction(MPR).Methods Retrospective case series study.The CT MPR data of 11 unilateral congenital nasolacrimal canal dysplasia patients treated in Baoding Children’s Hospital from January 2015 to January 2020 were collected.The anatomical features of abnormal bony nasolacrimal duct were analyzed.The bilateral anterioposterior and transverse diameters of nasolacrimal canal at initial segment were measured as well as the height of bilateral nasolacrimal canal.The anterioposterior,transverse diameters and height of nasolacrimal canal between the normal and affected side were compared with paired t test.Results The CT MPR indicated that the nasolacrimal canal of affected side was normal at the initial segment,but became stenotic or even atretic at the middle and terminal segment.The transverse(4.62 mm±0.81 mm) and anterioposterior(5.43 mm±1.10 mm) diameters at the original segments of affected sides were larger than that of the normal sides.This difference had statistical significance(P=0.000).The nasolacrimal canal heights of affected sides were much shorter than that of normal sides.This difference had statistical significance(P=0.000).Conclusion The common anatomical feature of congenital nasolacrimal canal dysplasia is characterized by stenosis or even atresia at the middle and terminal segment of bony nasolacrimal duct.The anomalous bony nasolacrimal duct is much shorter than the normal.

关 键 词：儿童 鼻泪管 先天畸形 体层摄影术 CT多平面重组技术 

分 类 号：R779.6[医药卫生—眼科]