Sage M R, Wilson B C
Med J Aust. 1979 Jul 14;2(1):46-8. doi: 10.5694/j.1326-5377.1979.tb112695.x.
Although there has been a reduction in cerebral angiographic (33%), pneumoencephalographic (70%) and radionuclide brain scanning (28%) investigations since the introduction of computerized tomography in South Australia, there has been a significant increase (56%) in the total number of neuroradiological investigations performed. At the same time, the number of patients who underwent neuroradiological investigations has risen by 75%. This is equivalent to approximately one person in every 290 per year.