Mevion Medical Systems Launches First Clinical Treatment with MEVION S250-FIT Proton Therapy System at Stanford
Mevion Medical Systems has announced the successful completion of the first clinical treatment using its MEVION S250-FIT Proton Therapy System at Stanford Medicine Cancer Center. This marks a significant milestone as it is the first time a proton therapy treatment has been delivered within an existing conventional radiation therapy vault. The MEVION S250-FIT system is a compact, single-room proton therapy solution that integrates seamlessly into existing radiation oncology infrastructure, eliminating the need for constructing dedicated proton therapy bunkers. This innovation addresses space constraints and accelerates the integration of advanced particle therapy into existing oncology programs. The system pairs Mevion’s compact fixed-beam proton delivery with Leo Cancer Care’s MARIE platform, which offers 360-degree patient rotation and integrated upright CT imaging, thus removing the need for a rotating gantry and reducing the structural footprint. 
