Deep Brain Stimulation: Interventional and Intraoperative MRI Approaches.

Area of Science:

• Neurosurgery
• Medical Imaging
• Neurological Devices

Background:

• Traditional stereotactic techniques for deep brain stimulator (DBS) implantation rely on rigid stereotactic frames.
• Intraoperative MRI (iMRI) and interventional MRI offer advanced imaging capabilities during surgical procedures.

Purpose of the Study:

• To introduce and discuss frameless, MRI-based stereotactic approaches for deep brain stimulator implantation.
• To compare the advantages and disadvantages of MRI-guided techniques versus traditional awake, physiologically guided surgery.

Main Methods:

• Utilizes a novel frameless stereotactic system based on magnetic resonance (MR) imaging regions of interest and geometric principles.
• Targets deep brain structures that are visible and well-characterized on MR imaging.

Main Results:

• Eliminates the requirement for a stereotactic frame, simplifying the surgical procedure.
• Applicable to targets with clear MR visibility and well-defined anatomy and function.
• May be suitable for targets lacking distinct physiological signatures or where macrostimulation response is not critical.

Conclusions:

• Frameless, MRI-guided stereotaxis represents a significant departure from traditional DBS implantation methods.
• This technique offers a viable alternative for specific neurosurgical targets, potentially improving accuracy and patient comfort.