经阴道超声结合VCI-C平面及3D-Glassbody成像模式在诊断异位妊娠中的应用

目的:探讨容积对比成像技术(VCI-C平面)、三维玻璃体模式(3D-Glassbody)及经阴道彩色多普勒超声诊断异位妊娠(EP)的特征性依据,以提高EP诊断的准确性。方法:对188例疑似早期EP的患者,进行二维经阴道(必要时结合经腹)彩超及VCI-C平面+Glassbody模式,观察包块滋养动脉血流分布及频谱。结果:188例中及时确诊183例。①附件区的妊娠囊内可见胎芽和(或)卵黄囊,17例(9.0%)有胎心搏动。②Donut征(输卵管环),其中98例有Donut征,占52.1%。③附件区内可探及混合性包块,有时伴有少量积液,共60例,占31.9%。④另有8例仅表现为盆腔积液,占4.3%。诊断符合率97.3%。误诊5例,均为宫内妊娠合并卵巢黄体破裂,误诊率为2.7%。结论:经阴道超声结合彩色多普勒(CDFI)/能量多普勒(CDE),能准确迅速地取得EP的诊断证据,VCI-C平面超声成像结合3D-Glassbody成像模式,信息量大,提高了对比分辨率与信噪比,可较二维超声提供更详尽的信息。

Transvaginal Ultrasonography Combined with VCI-C Plane and 3D-Glassbody Modality in Diagnosis of Ectopic Pregnancy

Objective:To investigate the volume contrast imaging C-plane(VCI-C plane),3-D Glassbody mode and transvaginal color Doppler ultrasound in diagnosis of ectopic pregnancy(EP)characteristic basis,in order to improve the accuracy of diagnosis of EP.Methods:188 patients with suspected early ectopic pregnancy,examined with 2-D transvaginal ultrasonography(combined with transabdominal ultrasonography necessary) and VCI-C plane + Glassbody model,to observe mass′ support artery distribution and spectrum.Results:Among the 188 cases,183 cases were diagnosed promptly.①The attachment area had the gestational sac visible within the embryo and/or yolk sac,there were 17 cases of fetal heart beat,9.0%.②The Donut syndrome(tubal ring),including 98 cases of Donut syndrome,52.1%.③The attachment area can be explored mixed mass,sometimes accompanied by a small amount of fluid,including 60 cases,31.9%.④The other part is not typical case only with the pelvic cavity accumulates liquid,including 8 cases,4.3%.Diagnosis coincidence rate was 97.3%.Conclusions:Transuaginal sonography combined with CDFI/CDE can obtain ectopic pregnancy in the early diagnosis accurately and quickly,that’s the good means.VCI-C plane ultrasound imaging combined with 3D-Glassbody imaging mode have a large amount of information,increasing the contrast resolution and signal to noise ratio,and can provide more detailed information than 2D.