In 2014, Siteman Cancer Center performed the world’s first MRI-guided radiation therapy treatment, allowing for visualized and adaptable tumor treatment.

In January 2014, Siteman Cancer Center became the first center to treat patients using the world’s first MRI-guided radiation therapy system – MRIdian by ViewRay. The center also was the first to perform adaptive radiation therapy under MRI-guidance, a practice that is now a routine part of treatment at Siteman. This adaptive therapy allows clinicians to adapt to changes and movement in the patient’s anatomy in real-time while the patient is being treated, bringing greater precision to radiation delivery.