本文關(guān)鍵詞：16～42周胎兒脊髓頸膨大發(fā)育的MRI分析　出處：《山東大學(xué)學(xué)報(bào)(醫(yī)學(xué)版)》2016年05期 　論文類(lèi)型：期刊論文

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【摘要】：目的利用3.0T MRI觀察正常胎兒標(biāo)本脊髓頸膨大最大橫斷面及其相對(duì)位置關(guān)系隨孕周變化的規(guī)律。方法隨機(jī)選取44例16~42孕周胎兒標(biāo)本,行3D-T2WI和T2WI-SPC序列掃描,對(duì)所得圖像三維重建,觀察及測(cè)量以下參數(shù):1頸膨大最大橫斷面面積:選取C4-T1脊神經(jīng)區(qū)間內(nèi)各椎體中心及椎間盤(pán)中心水平分別測(cè)量頸膨大橫斷面面積,選取最大面積,繪制最大橫斷面面積隨孕周變化的生長(zhǎng)曲線;2頸膨大最大橫斷面與椎體的相對(duì)位置關(guān)系;3比較性別間差異。結(jié)果 1頸膨大最大橫斷面積隨孕周呈線性增加,與孕周的相關(guān)方程分別為:最大橫斷面積(cm2)=0.01×孕周-0.12,R2=0.91,P0.05;2頸膨大最大橫斷面與椎體相對(duì)位置關(guān)系:16~28孕周胎兒頸膨大最大橫斷面約位于C5/6椎間盤(pán)中心水平,29~42孕周胎兒頸膨大橫斷面約位于C5~C5/6中心水平,此位置隨孕周增加而逐漸輕度上移;3頸膨大最大橫斷面面積與性別沒(méi)有明顯統(tǒng)計(jì)學(xué)差異(P0.05)。結(jié)論高場(chǎng)磁共振可準(zhǔn)確反映胎兒頸膨大最大橫斷面積及相對(duì)位置與孕周變化的規(guī)律,建立了正常胎兒脊髓頸膨大生長(zhǎng)發(fā)育的磁共振影像圖譜及數(shù)據(jù)庫(kù)。
[Abstract]:Objective to observe the relationship between the maximum transverse section of cervical enlargement of spinal cord and its relative position with gestational weeks in normal fetal specimens with 3.0T MRI. Methods 44 cases of 1642 gestational week fetuses were randomly selected. 3D-T2WI and T2WI-SPC sequences were performed to reconstruct the images. The following parameters were observed and measured: the maximum cross-sectional area of cervical enlargement was measured at the level of vertebral body center and intervertebral disc center in C4-T1 spinal nerve region, and the maximum area was selected. The growth curve of maximum cross-sectional area with gestational age was drawn. (2) the relative position relationship between the maximum transverse section of cervical expansion and the vertebral body; Results 1the maximum cross-sectional area of cervical swelling increased linearly with gestational weeks, and the correlation equations with gestational weeks were: maximum cross-sectional area (cm _ 2) was 0.01 脳 gestational weeks (-0.12). R2O0.91, P0.05; 2the relationship between the maximum transverse section of cervical enlargement and the relative position of the vertebral body is that the largest cross-sectional section of the cervical enlargement of the fetus is located at the central level of C5 / 6 intervertebral disc at the gestational week. The transverse section of cervical enlargement at gestational week 2942 was located at the center of C5 / 5 / 6, and the position moved up slightly with the increase of gestational week. 3There was no significant difference between the maximum cross-sectional area of cervical enlargement and gender. Conclusion High field magnetic resonance imaging can accurately reflect the rule of the maximum cross-sectional area, relative position and gestational week of fetal neck enlargement. The magnetic resonance imaging atlas and database of normal fetal cervical expansion were established.
【作者單位】： 山東大學(xué)醫(yī)學(xué)院;山東省醫(yī)學(xué)影像學(xué)研究所磁共振室;山東省淄博市中心醫(yī)院影像科;山東大學(xué)附屬省立醫(yī)院影像科;
【基金】：國(guó)家自然科學(xué)基金(31371213) 山東省自然科學(xué)基金(ZR2013HM091)
【分類(lèi)號(hào)】：R445.2;R714.5
【正文快照】： 網(wǎng)絡(luò)出版地址:http://www.cnki.net/kcms/detail/37.1390.R.20151225.1601.002.html目前胎兒MRI檢查的優(yōu)勢(shì)逐步得到臨床認(rèn)可,關(guān)于胎兒顱腦發(fā)育狀況的MRI評(píng)估已比較系統(tǒng)和完善[1-2]。而少數(shù)關(guān)于胎兒脊髓的研究也多側(cè)重于脊髓圓錐位置及脊髓脊膜膨出等發(fā)育畸形與脊髓的關(guān)系,國(guó)內(nèi)

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本文編號(hào)：1390184