The Thermal Ablation with MRgFUS: From Physics to Oncological Applications

Area of Science:

• Oncology
• Medical Imaging
• Therapeutic Ultrasound

Background:

• Growing interest in minimally invasive cancer therapies.
• Ablative therapies are established for locoregional control, with emerging roles in modulating systemic anti-cancer immunity.
• Magnetic Resonance-guided Focused Ultrasound (MRgFUS) enhances precision and control in cancer treatment.

Purpose of the Study:

• To review the expanding applications of MRgFUS in oncology.
• To highlight MRgFUS's role in pain relief and curative treatments for metastatic bone lesions.
• To explore MRgFUS's potential in treating various cancers and enhancing drug delivery.

Main Methods:

• MRgFUS utilizes focused ultrasound beams guided by Magnetic Resonance Imaging (MRI) for precise targeting.
• Induces deep coagulation necrosis for targeted tumor ablation.
• In neuro-oncology, low-intensity focused ultrasound (LIFU) with microbubbles opens the blood-brain barrier (BBB).

Main Results:

• MRgFUS enables highly targeted radical ablation of tumors.
• Effective in providing pain relief and curative options for bone metastases.
• Demonstrates potential for treating early-stage prostate and breast cancers, abdominal cancers, and enhancing chemotherapy delivery.

Conclusions:

• MRgFUS is a rapidly expanding oncology tool with diverse applications.
• It offers significant opportunities for improving patient outcomes and advancing cancer treatment.
• MRgFUS shows promise in stimulating anti-cancer immune responses and facilitating targeted drug delivery.