Similar to steroid injection. Doctor would do both at same time.
I would call their office to find out specifics, even if you don’t go to him.
I researched SCT procedure and vetted doctors. I selected Dr. Enty, it’s not all about money with him. I had my procedure in 2019. Helped immensely with my arthritis. It took a couple of weeks before I felt the full relief. My current X-rays show very little arthritis.