Figure 1From: First experience with MR-guided focused ultrasound in the treatment of Parkinson's diseaseIntra-operative patient setup. Patient lies on MR bed with the head immobilized by a metal frame and placed inside the phased-array ultrasound transducer. The space between the head and the transducer has been sealed by a silicone membrane and is being filled with cooled and degassed water.Back to article page