Twin speed 1.5T Infinity system Infinity Signa MR systems with excitation technology, 3.0T Signa Twin speed Infinity with Excite, Excite 1.5T Signa, Signa Excite 3.0T, 1.5T Signa HDx, 3.0T Signa HDx, Signa 1.5T and HDxt 3.0T, 3.0T Signa with Excite, 1.0T and 1.5T Signa Horizon LX, Signa Horizon, Signa Advantage SP, 0.7T Signa Open Speed, HDE Signa 1.5T, Optima MR360 and MR355 Brivo MR systems