Spiess H
Klin Monbl Augenheilkd. 1979 Jun;174(6):816-23.
272 cases with visual field defects were examined by CT and analysed. 78 patients showed a chiasmatic lesion, 45 patients a lesion of the optic tract or the lateral geniculate body and 136 patients a lesion of the optic radiation or the occipital cortex. 96% of the CT pictures were topographically corresponding to the known optic field defect. In more then 75% of the operated patients the nature of the CT lesion was confirmed. 10 cases were negative in CT and 3 false positive. Because of the high rate of exact topographic diagnosis CT should be the initial investigation in visual field defects. But the nature of a lesion has to be diagnosed with caution, taking into account the entire clinical picture.
对272例视野缺损患者进行了CT检查并分析。78例患者显示视交叉病变，45例患者显示视束或外侧膝状体病变，136例患者显示视放射或枕叶皮质病变。96%的CT图像在地形上与已知的视野缺损相对应。在超过75%的手术患者中，CT病变的性质得到了证实。10例CT检查为阴性，3例假阳性。由于精确地形诊断的高比率，CT应作为视野缺损的初步检查。但在诊断病变性质时必须谨慎，要考虑到整个临床情况。
