FIGURE 1. Stereotactic frame application and patient positioning for MRgFUS brain therapy. The CRW headframe A, B and rubber diaphragm C are positioned as inferior as possible to maximize the number of active transducer elements within the MRgFUS array. D, The CRW frame and rubber diaphragm are attached to the ExAblate (InSightec Inc, Haifa, Israel) device that is mounted on a dedicated MRI bed.