Neuroanatomic considerations in percutaneous tumor ablation.

Area of Science:

• Radiology
• Interventional Radiology
• Neuroanatomy

Background:

• Percutaneous ablation is a common focal therapy for thoracic, abdominal, and pelvic tumors.
• Tumors near neural structures pose a risk of nerve injury during ablation.
• Conventional imaging often fails to visualize critical nerves during ablation procedures.

Purpose of the Study:

• To highlight the importance of regional neuroanatomy in percutaneous tumor ablation.
• To identify vulnerable nerves in the chest, abdomen, and pelvis.
• To discuss nerve protection and monitoring strategies during ablation.

Main Methods:

• Review of relevant neuroanatomy in areas targeted for percutaneous ablation.
• Description of potential nerve injury risks and protective measures.
• Discussion of nerve monitoring techniques, including imaging and functional evaluation.

Main Results:

• Key nerves in the chest (brachial plexus, phrenic, recurrent laryngeal, etc.) and abdomen/pelvis (femoral, sciatic, pudendal, etc.) are identified.
• Nerve displacement techniques (air/fluid instillation, balloons) and mechanical manipulation are effective protection methods.
• Imaging and electromyography are valuable for nerve monitoring.

Conclusions:

• Thorough knowledge of neuroanatomy is essential for safe percutaneous tumor ablation.
• Proactive nerve protection and monitoring strategies can significantly reduce the risk of neural injury.
• Informing patients about potential nerve-related risks is critical.