Dosimetric feasibility of magnetic resonance imaging‐guided tri-cobalt 60 preoperative intensity modulated radiation therapy for soft tissue sarcomas of the extremity

Using a tri-60Co system, we were able to achieve equivalent dosimetry to the PTV and organs at risk for patients with ESTS compared with LINAC-based IMRT plans. The tri-60Co system may be advantageous over current treatment platforms by allowing PTV reduction and by elimination of the additional radiation dose associated with daily image guidance, but this needs to be evaluated prospectively.