Intraoperative RT is given in –
Ca Cervix
Ca Breast
Ca Pancreas
Ca Thyroid
Intraoperative radiotherapy can be used in:- Pancreatic carcinoma, Gastric carcinoma, colorectal carcinoma, Head & Neck cancers, Retroperitoneal sarcomas, Genitourinary cancers, Brain tumor and some gynecological malignancies.
Amongst all these, intraoperative radiotherapy is most valuable in pancreatic carcinoma.

Note:- Intraoperative radiotherapy has also been tried in early stage breast cancer after conservative surgery and it may become an important area in the management of early breast cancer.