Super-resolution reconstruction of brain-corner surface and hearing nerve image slubys

Prior to the excision of vestibular schwannoma (VS), it is known that the walking path of the cranial nerve to the craniofacial nerve and the VIII to the cranial nerve in the cerebral cranial bridge (CPA) can help to remove the tumor, preserve the cranial nerve and reduce complicationsMRI's high-resolution diffuse leachimaging (DTI) technology provides a clearer image of the cranial nerveLorenz Epprecht, of the Department of Otolaryngology at Harvard Medical School in the United States, and others used super-resolution reconstruction (super-resolution, SSR) technology to improve the identification of cranial nerves in CPA District VII and VIII to cranial nerves to guide surgeryThe paper was published in the December 2019 issue of Journal of Neurological Surgerystudy methodsincluded 17 VS patients between August and December 2017; The mrI and DTI images of the two phases were obtained by ultra-resolution reconstruction techniques (Figure 1), and the anisotropic values of cerebrospinal fluid and nerve fiber bundles in the SSR image were compared (perseparal anisotropy, FA value)Figure 1Principles of MRI axial and polar-bit imaging and super-resolution reconstruction (SSR) imagingAAA stratified scan of the nerves of the parallel target and axebit; BThe reconstruction process, the red line part of which indicates that the SSR image is reconstructed by axis imaging, the polar bit image overlay and reconstruction of the nerveresultsresults show that the FA (0.07 x 0.02) value of cerebrospinal fluid in the SSR image is significantly lower than the FA value of THE gheli nerve in vii (0.10 to 0.06; p.021) and VIII FA value (0.1) for the cranial nerve The difference in FA values of cerebrospinal fluid and nerve fibers in the SSR image is significantly greater than that of the simple MRI-DTI axial bitmap or polar bitmap, indicating that SRR has a higher resolution than MRI-DTI axial or polar bitmapMoreover, the ssR diagram can be used to reconstruct the cranial nerves of VII and the cranial nerves of VIII, while the mere MRI-DTI axial or polar bitmap cannot separate the two pairs of nerves (Figure 2)The authors note that SSR reconstruction only takes the same time as the MRI-DTI axis and astyl sequence scans, 8 minutes and 25 seconds, compared with 15 minutes and 17 seconds for high-resolution MRI scansFigure 2 MRI, DTI sequence, and super-resolution reconstruction imaging The A.MRI-T2 phase shows structures such as hearing nerves in the brain corner region of the cerebellum bridge B High-resolution MRI-T2 phase C Axis imaging, parallel polar-scale volume imaging and SSR imaging, sSR can be seen to show more clear nerves D.SSR reconstructs the two nerves separately E On the FA diagram, SSR can reconstruct the two nerves separately conclusions the final authors conclude that, compared with traditional MRI-DTI imaging techniques, SSR reconstruction technology can significantly improve the resolution of the cranial nerves in CPA region VII and VIII to the cranial nerves, and compared with high-resolution MRI, the scanning time is short and the reconstruction software is readily available Therefore, SSR technology can greatly improve the preoperative judgment of the CPA region cranial nerve walk.