Abstract
目的 探讨多层螺旋CT三维成像技术在小肠梗阻中病因探讨的应用价值.方法 12例高位肠梗阻患儿均行腹部CT检查,并选择在工作站进行多平面重建、容积重组技术、仿真内镜等图像三维处理以更好显示病变.影像学检查结果与最终手术诊断对照.结果 12例患儿中,参照手术结果,4例空回肠闭锁,十二指肠闭锁、肠重复畸形、环状胰腺各2例,胎粪性小肠梗阻、肠旋转不良各1例.腹部CT检查正确发现十二指肠闭锁、肠重复畸形、环状胰腺各2例,1例肠旋转不良.腹部CT对于小肠梗阻的敏感性100%,特异性58%.结论 (1)对先天性小肠梗阻,多层螺旋CT是消化道造影检查的良好补充技术,辅以三维重建技术,能更为直观地显示病变位置、范围、腔内外和周围组织情况.(2)多层螺旋CT操作简单、安全、无痛苦,但其扫描前准备值得临床进一步研究。
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