【单选题】【消耗次数：1】
以下哪个先天性心脏结构异常超声在早孕期诊断检出率最高
①
单心室
②
永存大动脉
③
室间隔缺损
④
法四
⑤
右室双出口
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相关题目
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关于早孕期超声诊断严重先天性心脏病的说法哪种不正确？
①
早孕期超声图像特征与中孕期相似
②
早孕期超声能提示大部分严重先天性心脏病
③
早孕期超声漏诊和误诊不可避免
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早孕期超声能取代中孕期超声
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室间隔缺损超声诊断下列哪一点是正确的?
①
随着肺动脉压力的逐渐增高，左向右的分流压差逐渐增高
②
脉冲波多普勒显示湍流的最大速度和频谱形成
③
均可出现左室、左房增大
④
肺动脉高压时，跨室间隔缺损的频谱为全收缩期、单峰、高速的湍流频谱
⑤
干下型室间隔缺损又称为流出道型室间隔缺损
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