RADIOSURGICAL TREATMENT OF RECURRENT GLIOBLASTOMA AND PROGNOSTIC FACTORS AFFECTING TREATMENT OUTCOMES.

Background: Glioblastoma (GBM) is the most prevalent malignant tumor of the brain in adults with the inherent aggressive behavior and high recurrence rate. The stereotactic radiosurgery (SRS) is currently considered as one of the effective modalities for GBM treatment allowing for the improvement of survival with the acceptable toxicity level.

Aim: To assess the effects of various factors on the survival of GBM patients following SRS.

[Instrumental diagnosis of recurrent lumbar spine herniated discs in different observation periods].

The results of neuroimaging examination methods application in patients with true herniated disc at different time after primary discectomy were summarized. Designated structural morphological features of operated lumbar segment in early, mid and late period. The study was conducted based on a retrospective analysis of MRI and MSCT in 113 patients with recurrent herniated disc.