Study On Three-dimensional Reconstruction Of Carp Brain Tissue And Carp Brain Nerve Fiber Bundle Based MRI

Biological robot is one of the most active fields in the emerging interdisciplinary field,and it is also an important field with potential wide application prospects.The research of brain functional area is the key problem of brain control technology of biological robot.Only by clearly understanding the anatomy and morphological structure of the brain of biological robot,can we improve the motion control ability of biological robot.This subject takes carp as the research object.By selecting the most suitable MRI instrument for carp brain and brain tissue imaging to scan and image the carp brain and brain tissue,the obtained MRI image of carp brain and brain tissue was reconstructed in three dimensions,so as to realize the projection of carp brain body surface,and provide positioning navigation for brain electrode implantation without craniotomy.Through independent setting of the relevant parameters of magnetic resonance diffusion tensor imaging,using magnetic resonance diffusion tensor imaging to explore and discover part of the cerebral nerve fiber bundles of carp,which provides a certain experimental basis for the study of the carp robot brain neural pathway.In the selection of magnetic resonance imaging instrument suitable for carp brain tissue imaging,magnetic resonance imaging instruments with different field strengths were used to scan and image the carp brain and brain tissue.The carp cerebrospinal fluid and brain tissue signals were measured by mimics software,and the magnetic resonance imaging instrument most suitable for carp brain and brain tissue imaging was selected.In the three-dimensional reconstruction of carp brain and brain tissue magnetic resonance images,the software of mimics was used to reconstruct the carp brain and brain tissue.After reconstruction,the morphological structure of the surface of the carp brain was displayed,and the olfactory bulb,olfactory stalk,telencephalon,mesencephalon,cerebellum,and medulla oblongata were identified.The projection of carp brain tissue on the brain surface was realized,and the position relationship of carp brain tissue in the brain was observed transparently,which provided positioning navigation for the brain electrode implantation without craniotomy.In the exploration of carp cerebral nerve fiber bundles,this study used magnetic resonance diffusion weighting and magnetic resonance diffusion tensor imaging to scan and image the carp brain and brain tissue.By comparing the quality of carp brain magnetic resonance weighted images,the carp brain magnetic resonance weighted images were determined when b=400s/mm~2 was selected,which provided the prerequisites for the study of carp brain tissue function using magnetic resonance diffusion weighted imaging in the later stage.By fusing the T2 weighted image and FA image of carp brain in three directions,the different directions and distribution information of different cerebral nerve fiber bundles in different parts of carp brain tissue were observed;using magnetic resonance diffusion tensor imaging to track the carp cerebral nerve fiber bundles,which provided the precondition for the future exploration of the fiber connection between cerebellum and medulla oblongata of carp.