The term neuronavigation is derived from navigation, which refers to relying on a real-time positioning system to select a simple and safe route to accurate approach during navigation.
Similarly, applying the concepts and principles of navigation to neurosurgery operations, with computer image processing and surgical instrument tracking technology, can assist surgeons in optimizing the surgical approach and precise operating range. Such operations are called neuronavigation surgery.
At present, in addition to neurosurgery, navigation technology has been widely used in many fields such as otolaryngology, plastic surgery, urology, orthopaedics, etc., which plays an increasingly important and unique role as a highly effective tool in clinical surgery. In neurosurgery, navigation technology has also been irreplaceably applied to the main branches of brain tumours, vascular malformations, spine and functional neurosurgery.
The traditional way of craniotomy is to first determine the exact location of the lesion based on MRI, CT and other imaging data to formulate the surgical plan. The limitations and blindness are obvious that how much and how deep is the surgical cut depends mostly on the doctor’s personal experience especially when it comes to the deep part of the brain where the diseased tissue is small in size and the appearance and structure of the normal brain tissue resemble.
Surgical Navigation System
The brain is the most advanced part of the central nervous system, which is known as the “command headquarters” of the human body. But even such a delicate organ is only slightly harder than the Douhua, and the brain neurons that conduct signals are also extremely fragile. 5 minutes of ischemia and hypoxia can cause disability or even death. Therefore, neurosurgery is like “tightrope walking”, and the birth of the surgical navigation system displays the patient’s brain structure in real-time, becoming a “beacon” on the patient’s life.
If there is a “real-time display” of the brain structure, problem solved.
The Clinical Significance of Neurosurgical Navigation
Optimization of surgical approach, precise positioning of lesions
Multiple surgical accuracy guarantee (for brain deformation correction) and distance measurement based on image data: the navigation system provides distance measurement of anatomical positions on 2D tomographic images, and assist doctors in planning surgical approaches to the lesion.
Improve the rate of lesion resection
Simple and easy-to-use software operation interface, rich and accurate image fusion reconstruction display: the details of the reconstructed 2D image and 3D model are clear, and it supports the fusion modelling of multiple image sequences.
Real-time tracking of surgical progress
Advanced infrared positioning system, real-time tracking and feedback of the movement trajectory of surgical instruments on tomographic and 3D images, to ensure the positioning accuracy of the entire navigation system. At the same time, the navigation system is used for the needle biopsy, and to locate, determine the location of the biopsy, track the progress of the needle in real-time, and accurately obtain the target site for accurate, reasonable and convenient surgical plan formulation.
Preoperative plans are formulated accurately and reasonably, and multiple surgical approaches are simulated to reduce the risk of surgical trauma.
Navigation automatic storage and power failure automatic recovery: after an accidental power failure, the navigation operation can still be performed after restarting.
With the flow-based operation interface, there are prompts and alarms when encountering misoperation.
- Deep brain lesions, such as brain stem, thalamus, pituitary gland and other deep lesions.
- Small lesions, such as cavernous hemangioma, vascular malformation, aneurysm, etc.
- Lesions with unclear boundaries, such as various malignant tumours like malignant glioma.
- Minimally invasive surgery, such as intracranial foreign body removal, needle biopsy, etc.
- Other cases that need to reduce the risk of surgery.
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