内耳畸形的影像学研究进展

内耳位置深在，结构细小复杂，过去一直是影像学检查的盲区。但是，高分辨率CT（HRCT）及MRI在内耳病变诊治中的应用，使内耳畸形在先天性感音神经性聋患者中的诊断率明显提高。高分辨率CT（HRCT）颞骨薄层扫描，能够清晰显示内耳的细微骨结构，螺旋CT三维重建还可将轴住的二雏原始图像转换成三维立体图像，对内耳结构的显示更为直观，但只限于骨结构。MRI检查技术，特别是近年来水成像即内耳淋巴管造影技术能够直观、立体地显示内耳膜迷路的精细结构，弥补了CT检查的不足。CT和MRI的应用为认识内耳结构及疾病提供了有利的条件，逐渐成为诊断内耳疾病的首选检查方法；二者互为补充，极大的提高了诊断的正确率。而影像检查技术的进步，也使我们对各种先天性内耳发育畸形有了更为清晰地认识。本文拟对内耳发育畸形的影像学的研究进展进行综述。

Lnternal ear abnormal phantom study research progresses

Internal ear position deeply in, structure tiny complex, in the past always was the phantom study inspection blind spot. But, high resolution CT （HRCT） and MRI diagnoses at the internal ear pathological change the application,causes the internal ear abnormally in the congenital sexy sound nervous deaf patient＇s diagnosis rate distinct enhancement. The high resolution CT（HRCT） hie bone thin layer scanning, can the clear display internal ear slight bone structure,the screw CT three dimensional reconstruction also be possible to transform the axis position two- dimensional primitive image the three dimensional vectograph,is more direct--viewing to the internal ear structure demonstration, but only is restricted in the bone structure. The MRI inspection technology,specially in recent years Shuicheng likely was the internal ear lymph vessel radiography technology can direct--viewing,xhree--dimensional demonstrate the internal ear membraneous lahy rinth the fine structure, has made up the CT inspection insufficiency. CT and the MRI application for knew the internal ear structure and disease have provided the advantageous condition,becomes the diagnosis internal car disease gradually the first choice inspection method;The two are mutually the supplements, enormous enhancement diagnosis accuracy. But phantom inspection technology progress,also enable us to have abnormally to each kind of congenital internal ear growth had known clearly. This article draws up to the internal ear growth abnormal phantom study research progress carries on the summary.