Stereotactic Systems Enable Surgeon To Perform Brain And Spine Surgery Efficiently

Poonam Cmi
3 min readMay 11, 2022

--

Stereotactic Systems
Stereotactic Systems

A stereotactic system is a medical device that helps the surgeon direct a surgical instrument or a radiation beam to a specific target inside the body. The technique is mainly used to find brain lesions, though it can also be used to treat Parkinson’s disease and deliver high-intensity radiation to tumors. Furthermore, it is highly effective for performing fine-needle aspiration biopsies of brain lesions.

The Stereotactic System is a method of brain and spine surgery that allows the neurosurgeon to position the probe inside the brain using a polar coordinate holder and guide bars. It is used in both human and animal experiments. There are several manufacturers of this system. The ring-based design of the stereotactic system provides the best stability. The ring-based system’s superior physical properties such as strength, tensile strength, and toleration minimize common sources of error. It has a high degree of accuracy due to its arc-center principle. In addition, it features a coordinate’s calculator. This makes it easier to plan the procedure with a stereotactic system than a traditional planer.

The accuracy of the stereotactic system is based on a series of measurements. For example, a skull-mounted micro-stereotactic frame is used to measure the targeting error. This is the gold standard for precision neurosurgical targeting. It is also used for DBS surgery. For testing, a phantom is attached to the frame using three or four headpins. To ensure accuracy, the phantom must be made of a rigid material such as Plexiglas. The phantom must also be made of hard plastics, as they provide stiffness and can be used for imaging.

There are two types of stereotactic systems. Its RM and ZD systems were designed by neurosurgeons, and are both renowned for their precision and accuracy. Inomed is the preferred brand of inomed stereotactic systems, with the RM system offering a higher level of precision and reliability than any other manufacturer. Despite their reliability, the stereotactic systems are not without their limitations.

For clinical use, stereotactic neuro-navigation systems must undergo rigorous phantom studies to evaluate their accuracy and eliminate targeting errors. If the phantom is able to provide an accurate simulation of the procedure, then the phantom’s value is enhanced. The value of a phantom increases as it provides human-like anatomy and a realistic representation of the procedure. The study summarizes the key features of a phantom design.

Arch attachments and Z-frames are made of Delrin and are attached to the frame with nylon screws or nuts. They can be easily changed without disrupting the fixation of the patient. This is because stereotactic archeasers are movable. This enables the clinician to perform a wide range of tasks, such as examining an ear.

Phantoms must be compatible with the imaging system. MRI and CT imaging systems require the use of phantoms with a specific geometry. For stereotactic neuro-surgery, a phantom must mimic the brain tissue and be compatible with the imaging technique. Additionally, a phantom should be able to undergo a stereotactic neuro-navigation procedure

--

--