天堂国产午夜亚洲专区-少妇人妻综合久久蜜臀-国产成人户外露出视频在线-国产91传媒一区二区三区

人胚胎第四頸椎發(fā)育與胎齡關(guān)系MRI研究

發(fā)布時(shí)間:2019-08-20 12:26
【摘要】:目的測(cè)量20~37周正常胎兒標(biāo)本第四頸椎(C4)椎體各參數(shù)隨孕周變化的規(guī)律,完善胚胎脊椎發(fā)育影像解剖數(shù)據(jù)。方法利用3.0T磁共振對(duì)41例20~37孕周(男,21例;女,20例)胎兒標(biāo)本行3D-T_2WI和T_2WI-SPC序列掃描,測(cè)量不同孕周C4椎體生長(zhǎng)參數(shù)并行統(tǒng)計(jì)分析,得出各參數(shù)隨孕周變化的曲線。結(jié)果 C4椎體的各參數(shù)的變化隨孕周變化呈線性相關(guān),不同性別在各參數(shù)中無統(tǒng)計(jì)學(xué)差異。結(jié)論 C4椎體作為典型中位頸椎椎體的代表,其動(dòng)態(tài)生長(zhǎng)發(fā)育呈線性增長(zhǎng)趨勢(shì),與胎齡相關(guān)的C4椎體的生長(zhǎng)參數(shù)參照區(qū)間對(duì)評(píng)估先天性脊柱發(fā)育缺陷有重要參考價(jià)值。
[Abstract]:Objective to measure the variation of the parameters of the fourth cervical vertebrae (C4) with gestational weeks in normal fetal specimens at 20 weeks of 37 weeks, and to improve the anatomical data of embryonic spinal development. Methods using 3.0T magnetic resonance imaging (3.0T magnetic resonance imaging), 41 fetal specimens of 20 鈮,

本文編號(hào):2528627

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