Mevion Medical Systems has promoted Curt Kienast to chief operating officer (COO), effective immediately.
Kienast previously served as vice president of global service and will now be responsible for leading the vendor's end-to-end processes, development activities, and operations. He is a 13-year veteran at Mevion, according to the firm.
![A 53-year-old patient (patient number four) with a recurrent pituitary adenoma with extension of a cystic component of disease to the medial temporal lobe apparent on MRI (contoured in blue), and extension of disease to the left sphenoid bone and orbital apex apparent on [68Ga]Ga-DOTA-TATE (contoured in yellow).](https://img.auntminnie.com/mindful/smg/workspaces/default/uploads/2026/04/pituitary-tumor.QGsEnyB4bU.jpg?auto=format%2Ccompress&dpr=2&fit=crop&h=167&q=70&w=250)
