The study of 214 myeloscintilographies made on 200 patients have led the authors to the following conclusions: 1) myeloscintilography with RIHSA opens up a series of new possibilities in the field of neurological diagnosis, especially concerning with malformations, inflammatory and expansive processes, its possibilities in cases of disc herniations being of a narrower scope; 2) the method does not intend to substitute the conventional myelography with contrast media, both methods having to be used so as to complement each other; 3) there are cases in which myeioscintilography with RIHSA presents advantages over myelography with the positive means of contrast, especially in the diagnosis of arachnitis, nerve avulsions and malformations of the vertebral canal; 4) myeloscintilography with RIHSA has become a method of current use in neurological diagnosis because of the facility with which the examination is made, by the good tolerance of the drug, by its rapid absorption and complete elimination.