[Quality control of radiographic imaging of the lumbar spine].

The qualitative control of the roentgenographic findings was performed independently by the assessment of five x-ray specialists on 40 two-directional lumbosacral roentgenograms. The findings were based on questioners including all details and a table of the internationally used "Radiological Diagnosis". In earlier publications the anatomical and structural changes were considered the risk factors of the waist. (Osteoporosis, changes in the position of the vertebral body, change in the shape of the spine, restriction of the intervertebral cleft and deformation of the small articulations). The views of the research workers were compared by means of statistical analysis. Compared with other authors the methods of these findings are in agreement with the international norms. These findings drew attention to the necessity of an objective assessment of the subjective findings.