Llewellyn G, Gaudet L, Quartey G R, Campbell D R
J Can Assoc Radiol. 1984 Sep;35(3):259-61.
Twenty patients were studied by cranial computed tomography within 24 hours of myelography with metrizamide (Amipaque) to determine the intracranial manifestations of the use of this nonionic water soluble contrast medium. The findings ranged from relative hypodensity of the white matter due to ventricular opacification and gray matter penetration of metrizamide, to apparent trans-ependymal migration of the contrast agent resulting in what we have termed "pseudohydrocephalus." Trans-ependymal migration in normal humans has not been previously described. We were unable to establish precise radiologic correlates with the neurologic complications which some of the patients developed.
20名患者在使用甲泛葡胺（阿米培克）进行脊髓造影后的24小时内接受了头颅计算机断层扫描，以确定使用这种非离子型水溶性造影剂后的颅内表现。其表现多样，从因脑室显影和甲泛葡胺渗入灰质导致的白质相对低密度，到造影剂明显的经室管膜迁移，进而形成我们所称的“假性脑积水”。正常人体内的经室管膜迁移此前尚未见报道。我们无法确定与部分患者所出现的神经并发症确切相关的影像学表现。
