A kind of acoustic neuroma model based on mr image and preparation method thereof

Abstract

The present invention provides an MR image-based acoustic neuroma model and a preparation method thereof. The 3D high-resolution MRI scanning images of the acoustic neuroma and its adjacent facial acoustic nerve, blood vessels and brain parenchyma are obtained through MR multimodal imaging sequences. The data is imported into the modeling post-processing software to perform image fusion, segmentation and reconstruction of the compressed facial auditory nerve, the closely related blood vessels, the inner ear structure and the brain parenchyma structure to obtain a three-dimensional anatomical model of acoustic neuroma neuroma, which can be imported into a color 3D printer to print The individualized 3D printed solid model can effectively display the relationship between the neuroma morphology and the adjacent facial auditory nerve, arteriovenous, inner ear structure, front and back, and upper and lower spaces. It meets the needs of precise medical evaluation and intraoperative facial nerve function protection. Simulation and teaching training, reduce intraoperative exploration time, reduce surgical complications, and improve the teaching effect of medical training.

Description

technical field [0001] The invention belongs to the technical field of medical models, in particular to an acoustic neuroma model based on MR images and a preparation method thereof. Background technique [0002] Acoustic neuroma is one of the common intracranial tumors, accounting for 7% to 12% of intracranial tumors and 80% to 95% of cerebellopontine angle tumors. When the tumor size is small, the patient will experience tinnitus, hearing loss and dizziness on one side; when the tumor continues to grow, the tumor compresses the facial nerve and trigeminal nerve on the same side, causing facial twitching and decreased lacrimal gland secretion, or mild peripheral Facial paralysis; in the advanced stage of the tumor, the patient will have cerebellopontine angle syndrome and symptoms of posterior cranial nerves, compression of the brainstem, cerebellum and posterior cranial nerves, resulting in crossed hemiplegia and hemiparesis, cerebellar ataxia, gait Instability, dysphonia...

AI Technical Summary

Problems solved by technology

Moreover, in clinical practice, the tumor volume is large, the facial and auditory nerve is compressed and displaced, and the adhesion to the tumor is heavy. Even with microsurgery and electrophysiological monitoring technology, electrophysiological monitoring technology can only monitor the nerve response but cannot realize visualization. Protection is still very difficult

In addition, conventional skull base MR high-resolution images are 2D slice images, and the three-dimensional visualization of the spatial relationship between the compressed or closely related superior cerebellar artery, anterior inferior cerebellar artery, posterior inferior artery and adjacent vein branches around the tumor is limited, and neurovascular contact Or the degree of oppression is difficult to quantify, and it is difficult to describe the shape and spatial relationship of the neuroma in words and reports, which leads to certain difficulties in the accurate preoperative evaluation of acoustic neuroma, the precise protection of facial and auditory nerve function during operation, and effective medical teaching and training. challenge

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