Application of MR in stereotactic radiosurgery

Area of Science:

• Neurosurgery
• Radiology
• Medical Imaging

Background:

• Radiosurgery, a non-invasive brain surgery, demands superior imaging accuracy over traditional microsurgery.
• Accurate visualization of intracranial structures is crucial for effective radiosurgical planning and execution.

Purpose of the Study:

• To highlight the critical role of Magnetic Resonance Imaging (MRI) in advancing radiosurgery.
• To explore how refined MRI techniques and interpretation enhance diagnostic capabilities and treatment outcomes in radiosurgery.

Main Methods:

• Utilizing well-tuned and calibrated MRI scanners for high-resolution intracranial imaging.
• Leveraging MRI's three-dimensional imaging capabilities and superior tissue/spatial contrast.
• Employing MRI for longitudinal studies to assess radiosurgical effects on tumors and arteriovenous malformations (AVM).

Main Results:

• Optimized MRI provides distortion-free images, enabling precise definition of intracranial anatomy.
• MRI facilitates reliable diagnosis in radiosurgical patients, even without pathological confirmation.
• Successful applications of MRI in radiosurgery include large AVMs, dural AVMs of the cavernous sinus, and trigeminal neuralgia.
• MRI enables longitudinal assessment of treatment efficacy, crucial for dose optimization in tumors and result verification in AVMs.

Conclusions:

• High-quality MRI is indispensable for modern radiosurgery, enhancing its precision and non-invasive nature.
• MRI's advanced imaging characteristics expand potential indications for radiosurgery.
• MRI verification of radiosurgical results for AVMs is as reliable as conventional angiography.