Genitourinary, Anatomy, Neuroradiology peripheral nerve, MR, MR-Angiography, Intraoperative, Segmentation, Cancer, Prospective, Experimental, Multicentre study
I. Pyatnitskiy1, O. A. Vorontsov1, R. Ovchinnikov1, V. Mitrokhin1, R. Marishin1, E. Kharlamov2, B. Aleksandrov1, S. Droupy3, V. Medvedev4; 1Moscow/RU, 2Oslo/NO, 3Nîmes/FR, 4Krasnodar/RU
The possibility and accuracy of anatomical visualization of CN on clinical MRI scanners with different magnetic induction was evaluated. As the result of 24 MRI studies, we obtained high resolution images (Fig.1-2) with slice resolution 0.29 х 0.29 х 2.5 mm (real, without interpolation). Subsequently we mapped the variety of nerve fibers 0,2-0,7 mm in diameter spreading from prostate area and then down towards the crus of penis, penetrating the corpus cavernosum and passing inside. We regarded these nerve fibers as CN. CN visualization accuracy was assessed and verified histologically. As the result of histological staining, sensitivity and specificity was – 91% and 84% for nerves > 0,3 mm and 55% and 49% for nerves < 0,3 mm respectively.