Schroeder W
Klin Monbl Augenheilkd. 1976 Dec;169(6):743-5.
In 160 cross sectional ultrasonograms of normal optic nerves the double running time of ultrasound in 4.5-5 musec. The standard deviation is up to 1 musec. The conditions of measurement and the typical ultrasonographic patterns are discussed. These results are of value in the differential diagnostic of bilateral optic nerve lesions. Increased running time of ultrasound could be found in papilloedema due to neuritis, raised intracranial and intraorbital pressure, and in trauma and tumor. It can be decreased in optic atrophy.
在160份正常视神经的横断面超声图像中，超声的双程运行时间为4.5 - 5微秒。标准差可达1微秒。文中讨论了测量条件及典型的超声图像模式。这些结果对双侧视神经病变的鉴别诊断具有价值。在神经炎引起的视乳头水肿、颅内和眶内压升高、外伤及肿瘤情况下，可发现超声运行时间增加。而在视神经萎缩时，超声运行时间会缩短。
