CAJ | 학술논문

目的：：探讨三维超声在胎儿小头畸形诊断中的应用价值。方法：应用二维及三维超声对行产前超声筛查的84671例孕妇中5例小头畸形胎儿头颅进行检查及图像分析。结果：二维超声检查显示5例小头畸形胎儿双顶径( BPD)及头围( HC)均比实际孕周均值小3个标准差以上，三维重建显示异常胎儿的颅缝变窄及前囟、后囟消失接近闭合。结论：三维超声能在二维超声诊断胎儿小头畸形的基础上提供更多头颅的诊断信息，其能直观、形象地显示小头畸形胎儿颅骨、前囟及后囟的立体形态，对诊断及评价小头畸形的预后，指导临床干预有不可忽视的作用，是二维超声检查的重要补充。
목적：：탐토삼유초성재태인소두기형진단중적응용개치。방법：응용이유급삼유초성대행산전초성사사적84671례잉부중5례소두기형태인두로진행검사급도상분석。결과：이유초성검사현시5례소두기형태인쌍정경( BPD)급두위( HC)균비실제잉주균치소3개표준차이상，삼유중건현시이상태인적로봉변착급전신、후신소실접근폐합。결론：삼유초성능재이유초성진단태인소두기형적기출상제공경다두로적진단신식，기능직관、형상지현시소두기형태인로골、전신급후신적입체형태，대진단급평개소두기형적예후，지도림상간예유불가홀시적작용，시이유초성검사적중요보충。
Objective:To investigate the clinical value of three￣dimensional ultrasound ( 3￣DUS ) in the diagnosis of fetal microcephaly.Methods:Five cases of fetal microcephaly identified from 84 671 pregnant women who underwent prenatal ultrasound screening were studied by using two￣dimensional ultrasound ( 2￣DUS) and 3￣DUS. The ultrasound images were analyzed. Results:Two￣dimensional ultrasound showed that the biparietal diameter (BPD) and head circumference (HC) in the 5 microcephalic fetuses were smaller than as found in normal fetuses of actual gestational weeks by over 3 times the standard deviation of mean values. Three￣dimensional reconstruction showed narrowed cranial sutures and disappearing, nearly closed anterior and posterior fontanels in the abnormal fetuses. Conclusion:The 3￣DUS may provide additional information to the 2￣DUS diagnosed fetal microcephaly by visualizing the three￣dimensional architecture of skull and fontanels. By these virtues, 3￣DUS plays a significant role in diagnosing and evaluating the prognosis and guiding clinical intervention for fetal microcephaly, and therefore can be importantly supplementary to the 2￣DUS examination.