ИСТИНА

Introduction To the present day, FIESTA \ CISS \ DRIVE sequences are considered to be “informative” for the visualization of neurovascular conflict (NVC) by majority of medical preofessionals involved in treating patients with trigeminal neuralgia (TN). However, depending on the trajectory of the vessel, NVC may be not obvious in particular cases. The other problem is that popular sequences cannot provide accurate information on the type compressing vessel (vein \ artery). This circumstances forced us to develop and implement two adjusting protocols of NVC visualization and preoperative reconstruction of NVC. Methods During 2018 year, a protocol of fusing MR-A and FIESTA images was built in Burdenko NSC (Moscow) as long as new method of NVC 3D-reconstruction was also proposed. Both of them were implemented in 20 cases of TN. Results Preliminary results show several advantages of new approaches discussed. Among them, better understanding the type of compressing vessel and better preoperative vusialization, allowing observation of the NVC in 360-degree mode, are found. Preoperative evaluation is not time-consuming and provides outstanding preoperative information compared to routine neurovisualization.