MRI IN THE DIAGNOSTICS OF RADIATION-INDUCED CEREBRAL MICROBLEEDS
P urpose. To demonstrate the development of the radiation-induced cavernomas of a brain after a radiation therapy and to show the selection value of the adequate technology of the MRI for a detection of the microbleeds. Materials and methods. This study presents the clinical observation of patients with the intracranial germinoma. A comparative analysis of the series of magnetic-resonance examinations was carried out. Results. The use of the SWI-protocol allowed to detect the multiply diffuse foci of the hemosiderin deposition that cannot be visualized by T2-weighted images, T1-weighted images and FLAIR. The greatest number of the cerebral microbleeds was localized in the plane of the brain tumor irradiation. Conclusion. The selection of the MRI protocol is crucial for a detection of the cerebral microbleeds. All patients who have undergone brain irradiation in their childhood must be checked with the use of protocols that are weighed by magnetic field inhomogeneity (SWI or T2*GRE).