Magnetic Resonance-Guided Focused Ultrasound Bilateral Capsulotomy for the Treatment of Refractory Bipolar Depression

ExAblate Neuro 4000 is an MR-guided focused ultrasound (MRgFUS) device used to perform noninvasive thermal ablation of targeted brain tissue. In this study, ExAblate Neuro 4000 will be used to ablate the anterior limb of the internal capsule (capsulotomy) in patients with treatment-resistant bipolar depression (TRBD). The procedure is conducted under real-time MRI guidance and thermometry to assess safety and initial effectiveness in improving clinical symptoms and quality of life.