An MRI visual of a breast with breast cancer opens this article on interoperative radiation treatment.
Can't tell if the short article suggests this may be a newer form of IORT. I wish I had all my other IORT text and refs at my fingertips, but tonight I don't. I supposedly can't ever have a second lumpectomy because I already had too much radiation with The Boost. Whether that would include my other breast, I don't know.
So this may be info you already have. But the text is clear and easy to read.
Copy or type this in your browser line and have a look.
I wish you health.