Mark Docherty says he has noticed a number of improvements in his MS symptoms since receiving treatment in Bulgaria. (CBC)

A Regina man is back from Bulgaria and praising the modest improvements in his multiple sclerosis symptoms after surgery overseas.

Mark Docherty arrived home Tuesday and was met by a happy throng of family members and well-wishers.

"[To] feel better, even for a couple days after 13 years, it's absolutely amazing," Docherty said at the airport. "It's amazing. If that's all it is, I'll take it."

Docherty was in a group of 17 Canadians who sought out a procedure known as liberation treatment, or CCSVI.

Recently, Saskatchewan Premier Brad Wall suggested the province could take on some of the research associated with the procedure, which has yet to receive widespread support in the medical community.

Docherty said his improvements are modest but still noteworthy. He says he no longer suffers from vertigo and can walk without having to look at the ground.

He can also stand for longer periods of time and his muscles no longer spasm involuntarily.

The treatment revolves around a theory that constricted veins may contribute to MS symptoms and the problem can be alleviated by surgery. But the MS Society says the treatment is still in its infancy.

"CCSVI is a very interesting theory that needs more research," Paula Moon-Wozney, a spokeswoman for the MS Society in Saskatchewan, told CBC News. "So the MS Society is providing funding to various research projects across Canada to get the answers to the questions."