Hartge D R, Schröer A, Weichert J
Ultraschall Med. 2015 Feb;36(1):47-53. doi: 10.1055/s-0033-1350327. Epub 2014 Jan 13.
Sonographic imaging techniques including 3 D volumetry were evaluated in women with missed abortion. Special emphasis was put on the impact of additional information regarding the etiology of the demise and improved visualization of embryonic and fetal anomalies due to the application of the latest imaging tools, e. g. HD live™. Parental acceptance of a more realistic display of the embryo/fetus in missed abortion was analyzed.
Between 09/2009 and 09/2012, 107 pregnancies with a missed abortion in the first trimester were included in this prospective survey. Using a transvaginal approach, all 2 D and 3 D studies were carried out with high-resolution 5 - 9 and 6 - 12 MHz probes.
The mean gestational age was 70.3 days (49 - 110 days). The difference between estimated gestational age and sonographic age at evaluation for missed abortion was 13.5 days (-13 - 40 days). Additional information via three-dimensional volume acquisition, like craniofacial deformities, clefts, neural tube defects, abdominal wall defects and caudal regression syndrome, could be documented in 23/107 cases (21.5 %). In 2/107 cases the parents disapproved of the 3 D visualization due to the more realistic presentation.
3 D ultrasound in cases of missed abortion can provide additional information regarding the presence of structural anomalies. It may give further details regarding the timing of embryonic/fetal demise in early pregnancy. Sufficient informational value is regularly obtained in cases having a CRL > 8 mm. In counseling parents, 3 D ultrasound is a useful tool and is generally well accepted.
对包括三维容积成像在内的超声成像技术在稽留流产女性中的应用进行评估。特别强调了因应用最新成像工具（如HD live™）而获得的有关胚胎死亡病因的额外信息以及胚胎和胎儿异常可视化改善的影响。分析了父母对稽留流产中胚胎/胎儿更真实显示的接受程度。
在2009年9月至2012年9月期间，本前瞻性研究纳入了107例孕早期稽留流产的孕妇。采用经阴道途径，使用5 - 9MHz和6 - 12MHz的高分辨率探头进行所有二维和三维检查。
平均孕周为70.3天（49 - 110天）。稽留流产评估时估计孕周与超声孕周的差异为13.5天（-13 - 40天）。通过三维容积采集获得的额外信息，如颅面畸形、腭裂、神经管缺陷、腹壁缺陷和尾椎退化综合征，在23/107例（21.5%）中得以记录。在2/107例中，由于显示更真实，父母不赞成三维可视化。
稽留流产病例中的三维超声可提供有关结构异常存在的额外信息。它可能提供关于妊娠早期胚胎/胎儿死亡时间的更多细节。在头臀长>8mm的病例中通常可获得足够的信息价值。在为父母提供咨询时，三维超声是一种有用的工具，并且通常被广泛接受。
