ABSTRACT
Tousey refers to 'radiographs' showing the injected blood vessels of normal human subjects made for him by a Mr Bush of the Metropolitan Hospital in New York. Early radiographs of the heads of mummies were often used for demonstration purposes in museums and in the early literature a series of radiographs were published of bullets in the head, some of deceased persons and some of skulls as test objects. With the advent of magnetic resonance (MR) imaging, this has replaced in part some of the previous applications of X-rays. MR is still an evolving field as more and more information on clinical applications is being gathered. However, it is quite clear that there are some useful MR applications in neurology, myelography and in orthopaedic disorders. For example, MR has been demonstrated to have value in the diagnosis of brain infarction, white matter disease, changes consistent with Alzheimer's disease, and it has a well defined role in orbital imaging.
