CAJ | 학술논문

目的探讨妊娠中晚期正常胎儿第三脑室的大小及形态变化.方法超声测量165例27～40孕周的正常胎儿第三脑室宽度,并观察其形态,分析第三脑室宽度与孕周的关系.结果中晚期孕周胎儿的第三脑室宽度在0～3 mm之间,其宽度随孕周呈增加的趋势;第三脑室的宽度与孕周呈正相关性(r=0.473,P＜0.01).第三脑室形态中,Ⅰ型(似单线征)8例,占4.8%;Ⅱ型(平行线征)145例,占87.9%;Ⅲ型(V形征)12例,占7.3%.结论中晚期孕周胎儿的第三脑室宽度随孕周呈增加趋势,其超声形态中以平行线征最常见;了解胎儿正常第三脑室的超声表现有助于胎儿中枢神经系统异常的检出.
목적 탐토임신중만기정상태인제삼뇌실적대소급형태변화.방법 초성측량165례27～40잉주적정상태인제삼뇌실관도,병관찰기형태,분석제삼뇌실관도여잉주적관계.결과 중만기잉주태인적제삼뇌실관도재0～3 mm지간,기관도수잉주정증가적추세;제삼뇌실적관도여잉주정정상관성(r=0.473,P＜0.01).제삼뇌실형태중,Ⅰ형(사단선정)8례,점4.8%;Ⅱ형(평행선정)145례,점87.9%;Ⅲ형(V형정)12례,점7.3%.결론 중만기잉주태인적제삼뇌실관도수잉주정증가추세,기초성형태중이평행선정최상견;료해태인정상제삼뇌실적초성표현유조우태인중추신경계통이상적검출.
Objective To observe the normal configuration and size of the third ventricle in the second and third trimester fetuses in a normal population by ultrasonography. Methods The third ventricular width and configuration were obtained by antenatal ultrasonography in 765 fetuses with gestational age between 27 weeks and term.The relationship Between the width and the gestational age was analyzed.Results The third ventricle width 0～3 mm and showed the increased tendency; the correlation coefficient ( r ) between the width of the third ventricle and the gestationl week was 0.473 ( P＜0.01).The third ventricle was seen as a single echogenic line in 8(4.8%) of 165 fetuses, 145(61.5%) of all fetuses had parallel echogenic lines outlining a fluid-filled lumen, the V-shaped configuration of the third ventricle was seen in 12(7.3%) of the fetuses.Conclusions The third ventricle width shows the increased tendency in the second and third trimester.The parallel echogenic line becomes the prominent ultrasonography appearance in the second and third trimester fetuses.It's usefull to observe the normal ultrasonic apperance of the third ventricle in diagnosing the fetal central nervous abnormities.