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目的探讨断层超声显像(tomographic ultrasound imaging,TUI)联合时空间相关成像(spatio—temporal image correlation,STIC),即TUI-sTIC技术,诊断胎儿圆锥动脉干畸形(conotruncal defects,CTD)的可行性。方法回顾分析167例CTD胎儿超声资料,对比二维超声心动图(two dimensional echocardiography,2D-Echo)、TUI-STIC方法对胎儿CTD的诊断准确率、扫描时间,应用TUI-