Wilbrand H F
Department of Diagnostic Radiology, University Hospital, Uppsala, Sweden.
Scand Audiol Suppl. 1988;30:149-51.
The gross morphology of the vestibular aqueduct and its clinical significance are better understood against the background of the endolymphatic duct and sac, which is still a matter of hypotheses. They are concerned with functions of the endolymphatic sac like secretion and absorption of endolymph, desintegration of cells and other debris from the inner ear and phagocytosis. The endolymphatic sac in the vestibular aqueduct is also thought to have a pressure regulation function for the labyrinth and also to deal with the metabolism of the inner ear and the desintegration of otoconia. Pathology in this area is also a matter of vital discussion. The indications for surgical intervention are consequently a matter of controversary. Radiographic research has concentrated both on the normal radioanatomy of the aqueduct and its appearances in cases of Meniere's disease and of inner ear malformations. Digression from the normal appearance can be demonstrated with multidirectional tomography and CT.
在前庭导水管的大体形态及其临床意义方面，以内淋巴管和内淋巴囊为背景能更好地理解，而内淋巴管和内淋巴囊的情况仍存在诸多假说。这些假说涉及内淋巴囊的功能，如内淋巴的分泌与吸收、内耳细胞及其他碎屑的分解以及吞噬作用。前庭导水管内的内淋巴囊还被认为对迷路具有压力调节功能，并且与内耳的新陈代谢及耳石的分解有关。该区域的病理学也是一个重要的讨论话题。因此，手术干预的指征存在争议。影像学研究既聚焦于导水管的正常放射解剖结构，也关注其在梅尼埃病和内耳畸形病例中的表现。通过多向体层摄影术和CT可以显示与正常外观的偏离。
