The Encompass 15-Channel Head Coil is specially designed to accommodate the high-precision positioning unique to the Encompass MR SRS Immobilization System. The adjustable coil geometry locates the coil elements within millimeters of each patient’s unique anatomy providing an optimized signal-to-noise ratio and delivering imaging information to support accurate SRS treatment planning when used with the Encompass MR SRS Immobilization System. Immobilization in the Encompass SRS System offers motion reduction for increased visualization of fine details, reducing the need for repeated scans. MR images obtained with the Encompass SRS System can be used for SRS treatment planning, including MR-Only and MR Fusion Techniques.