斑點追蹤成像技術(shù)評估不同年齡健康孕婦妊娠期左室心肌整體長軸應(yīng)變的變化規(guī)律
發(fā)布時間:2018-12-13 09:16
【摘要】:目的:應(yīng)用二維斑點追蹤成像技術(shù)評估不同年齡的健康孕婦在妊娠期間左室心肌整體長軸應(yīng)變的變化規(guī)律。方法:按不同年齡對健康孕婦和未孕女性分組,35歲分為A組(年輕組),≥35歲分為B組(高齡組)。對未孕女性進行超聲心動圖檢查,對孕婦在妊娠8周、12周、16周、20周、24周、28周、32周、36周時進行超聲心動圖檢查,分析左室整體心肌長軸應(yīng)變峰值(LVGLS),比較2組女性LVGLS的區(qū)別,分析LVGLS與年齡的相關(guān)性;分析2組孕婦在妊娠期LVGLS的變化規(guī)律。結(jié)果:未孕女性A組和B組的LVGLS差異有統(tǒng)計學(xué)意義,且LVGLS與年齡呈負相關(guān)(r=0.70)。A組孕婦在早孕期LVGLS先增強,中晚孕期逐漸減弱;B組孕婦在整個妊娠期LVGLS均呈逐漸減弱趨勢,2組之間的差異在28~36周時最大(P0.05)。妊娠期間,孕婦LVGLS與年齡呈正相關(guān),中晚孕期兩者的相關(guān)性較好。結(jié)論:未孕女性的LVGLS與年齡呈負相關(guān),妊娠后逐漸呈正相關(guān);年輕孕婦在早孕期LVGLS代償性增強,高齡孕婦早孕期則無明顯代償性增強,且在妊娠期間LVGLS持續(xù)性減弱。
[Abstract]:Aim: to evaluate the changes of global long axis strain of left ventricular myocardium during pregnancy in healthy pregnant women of different ages by using two dimensional speckle tracing imaging. Methods: healthy pregnant women and non-pregnant women were divided into two groups: group A (young group) and group B (aged 鈮,
本文編號:2376299
[Abstract]:Aim: to evaluate the changes of global long axis strain of left ventricular myocardium during pregnancy in healthy pregnant women of different ages by using two dimensional speckle tracing imaging. Methods: healthy pregnant women and non-pregnant women were divided into two groups: group A (young group) and group B (aged 鈮,
本文編號:2376299
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